SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society

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SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
SpaceFlight
                           A British Interplanetary Society publication

                                                                          Volume 61 No.2 February 2019 £5.25

Sun-skimmer
phones home
                                                                                      Rolex in
                                                                                        space
                                                                                      Skyrora
                                                                                        soars

                        ESA uploads
02>

                        to the ISS
      9 770038 634089

                        From polar platform
                        to free-flier
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
CONTENTS

                                                                                                                                                 Features
                                                                                                                                                 18 Satellites, lightning trackers and space robots
                                                                                                                                                       Space historian Gerard van de Haar FBIS has
                                                                                                                                                       researched the plethora of European payloads
                                                                                                                                                       carried to the International Space Station by
                                                                                                                                                       SpaceX Dragon capsules. He describes the wide
                                                                                                                                                       range of scientific and technical experiments                             4
                                                                                                                                                       supporting a wide range of research initiatives.
                                                                                                          Letter from the Editor
                                                                                                                                                 24 In search of a role
                                                                                                          Without specific planning, this              Former scientist and spacecraft engineer Dr Bob
                                                                                                          issue responds to an influx of
                                                                                                                                                       Parkinson MBE, FBIS takes us back to the
                                                                                                          news about unmanned space
                                                                                                          vehicles departing, dying out and
                                                                                                                                                       origins of the International Space Station and
                                                                                                          arriving at their intended                   explains his own role in helping to bring about a
                                                                                                          destinations. Pretty exciting stuff          British contribution – only to see it migrate to an
                                                                                                          – except the dying bit because it            unmanned environmental monitoring platform.
                                                                                                          appears that Opportunity, roving
                                                                                                          around Mars for more than 14           30 Shake, rattle and Rolex                                                      18
                                                                                                          years, has finally succumbed to a            On the 100th anniversary of the company’s birth,
                                                                                                          global dust storm.                           Philip Corneille traces the international story
                                                                                                             Some 12 pages of this issue are           behind a range of Rolex watches used by
COVER: PARKER SOLAR PROBE IMAGINED AS IT MIGHT APPEAR APPROACHING ITS CLOSE PASS OF THE SUN / NASA/APL

                                                                                                          concerned with aspects of the
                                                                                                                                                       astronauts and cosmonauts in training and in
                                                                                                          International Space Station, now
                                                                                                          well into its stride as a research           space, plus one that made it to the Moon.
                                                                                                          facility, and a further six pages
                                                                                                          reflect on how the UK got involved
                                                                                                                                                 34 Reach for the Skyrora
                                                                                                          during the 1980s courtesy of a               Ken MacTaggart FBIS tracks down the company
                                                                                                          former President of the BIS who              building the first domestic UK satellite launcher
                                                                                                          was central to those                         in 50 years and explains how it can revolutionise
                                                                                                          developments.                                low-cost services for small satellites, as well as                        24
                                                                                                             Forward to the future again and           igniting a resurgence in rocket development.
                                                                                                          a fascinating insight into a
                                                                                                          company based in Edinburgh that
                                                                                                          plans to put Britain back in the
                                                                                                          launcher business, this time
                                                                                                          sending small satellites into space.
                                                                                                                                                 Regulars
                                                                                                          This is a long overdue feature of      4     Behind the news
                                                                                                          Britain’s resurgent presence in a            Feeling the heat / …what now, Voyager? /
                                                                                                          broader spectrum of space                    Opportunity: is this really the end?
                                                                                                          industry activities. And who knows
                                                                                                          where they will end up!                10 Opinion
                                                                                                             But there is much more and a                                                                                        30
                                                                                                                                                 12 ISS Report
                                                                                                          lot besides as we move toward
                                                                                                          momentous celebrations in this,              9 November – 8 December 2018
                                                                                                          the year of Apollo at 50!              36 Multi-media
                                                                                                                                                       The latest space-related books, games, videos
                                                                                                                                                 38 Satellite Digest
                                                                                                                                                       553 – November 2018
                                                                                                          David Baker                            42 Letters to the Editor
                                                                                                          david.baker@bis-space.com                    The long wait / Impetus or inspiration?
                                                                                                                                                 44 Society news / Diary
                                                                                                                                                       What’s happened/ What’s coming up                                         34

                                                                                                         OUR MISSION STATEMENT                   Editor David Baker, PhD, BSc, FBIS, FRHS Sub Editor Ann Page Creative Consultant Andrée Wilson Design & Production
                                                                                                                                                 MP3 Media Promotion Gillian Norman Advertising Tel: +44 (0)20 7735 3160 Email: d.baker146@btinternet.com
                                                                                                         The British Interplanetary Society      Distribution Warners Group Distribution, The Maltings, Manor Lane, Bourne, Lincolnshire PE10 9PH, England Tel: +44 (0)1778
                                                                                                           promotes the exploration and          391 000 Fax: +44 (0)1778 393 668 SpaceFlight, Arthur C. Clarke House, 27-29 South Lambeth Road, London SW8 1SZ,
                                                                                                                                                 England Tel: +44 (0)20 7735 3160 Email: spaceflight@bis-space.com www.bis-space.com
                                                                                                             use of space for the benefit
                                                                                                                                                 Published monthly by the British Interplanetary Society, SpaceFlight is a publication that promotes the mission of the British
                                                                                                          of humanity, connecting people         Interplanetary Society. Opinions in signed articles are those of the contributors and do not necessarily reflect the views of
                                                                                                           to create, educate and inspire,       the Editor or the Council of the British Interplanetary Society. Registered Company No: 402498. Registered charity No:
                                                                                                                                                 250556. The British Interplanetary Society is a company limited by guarantee. Printed in England by Latimer Trend & Co.
                                                                                                             and advance knowledge in
                                                                                                                                                 © 2019 British Interplanetary Society 2017 ISSN 0038-6340. All rights reserved. No part of this magazine may be reproduced
                                                                                                             all aspects of astronautics.        or transmitted in any form or by any means, electronic or mechanical, including photocopying or recording by any information
                                                                                                                                                 storage or retrieval system without written permission for the Publishers. Photocopying permitted by license only.

                                                                                                                                                                                                                                        SpaceFlight Vol 61 February 2019 3
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
BEHIND THE NEWS

                      Members of the Parker Solar Probe mission team at Johns Hopkins APL celebrate on 7 November 2018, after receiving a beacon
                      indicating the spacecraft is in good health following its first perihelion.

                      FEELING THE HEAT
                      Weeks after Parker Solar Probe made the closest-ever approach to a star,
                      the data it returned is now falling into the hands of mission scientists.
                      IT IS A MOMENT THAT many in the field have been                   associate administrator of NASA’s Science Mission
                      anticipating for years, thinking about what they'll do            Directorate. “Parker is the culmination of six decades
                      with never-before-seen data that has the potential to             of scientific progress. Now, we have realized
                      shed new light on the physics of our star, the Sun.               humanity’s first close visit to our star, which will have
                      Engineers and controllers report that Parker Solar                implications not just here on Earth, but for a deeper
                      Probe is alive and well after skimming the Sun just               understanding of our universe.”
                      24.8 million kilometres above the surface. This is far               Mission controllers at the Johns Hopkins
                      closer than any spacecraft has gone before – the                  University Applied Physics Lab (APL) received the
                      previous record was set by Helios B in 1976 – and                 status beacon from the spacecraft at 4:46 pm EST
                      has exposed Parker to intense heat and solar                      on 7 November 2018. The beacon indicates status "A"
                      radiation in a complex solar wind environment.                    – the best of all the four possible status signals,
                         “Parker Solar Probe was designed to take care of               meaning that Parker Solar Probe was operating well
                      itself and its precious payload during this close                 with all instruments running and collecting science
                      approach, with no control from us on Earth — and                  data. If there were any minor issues, they were
                      now we know it succeeded”, said Thomas Zurbuchen,                 resolved autonomously by the spacecraft.

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SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
BEHIND THE NEWS

                   IMAGES: NASA/JOHNS HOPKINS APL (LEFT) / NASA/NAVAL RESEARCH LABORATORY (RIGHT)

                                                                                                    This image, taken by Parker's WISPR instrument when the probe was about 16.9 million miles from the Sun's surface, shows a
                                                                                                    coronal streamer over the east limb of the Sun. The bright dot in the middle of the picture is Jupiter.

   At its closest approach on 5 November (perihelion)                                                                                                               began downlinking to Earth.
Parker Solar Probe reached a top speed of 213,200                                                                                                                      At about 6:00 pm EST on Friday 16 November,
km/hr, setting a new record for spacecraft speed.                                                                                             Parker is the         mission controllers at the Johns Hopkins Applied
Along with new records for the closest approach to                                                                                                                  Physics Lab in Laurel, Maryland, received the report
the Sun, it will repeatedly break its own speed                                                                                              culmination of         from the spacecraft, which also included information
record as its orbit draws it closer, travelling faster and                                                                                                          about the data collected by the four instrument
faster at perihelion with each successive pass.                                                                                              six decades of         suites during its first solar encounter. The solid state
   During its first pass, the intense sunlight heated
the Sun-facing side of Parker Solar Probe's heat
                                                                                                                                                scientific          recorder indicated that the four suites had recorded a
                                                                                                                                                                    significant amount of data as planned. This was
shield to about 438 °C. This will climb up to around
1,370º C as it makes even closer approaches – its
                                                                                                                                                progress            downloaded to Earth via the Deep Space Network
                                                                                                                                                                    over several weeks, starting on 7 December.
instruments and systems protected all the while by                                                                                                                     In addition to helping scientists answer
the heat shield, which keeps them at a relatively                                                                                                                   fundamental questions about the physics of our star,
balmy 29 ºC.                                                                                                                                                        the data from the initial perihelion will help mission
                                                                                                                                                                    controllers calibrate Parker Solar Probe’s instruments
ARRIVAL                                                                                                                                                             and plan future observations.
Parker Solar Probe's first solar encounter phase                                                                                                                       “The team is extremely proud to confirm that we
began on 31 October, and it continued collecting                                                                                                                    have a healthy spacecraft following perihelion”, said
data until the end of the phase on 11 November. Five                                                                                                                APL’s Nick Pinkine, mission operations manager for
days later, the spacecraft reported that all systems                                                                                                                Parker Solar Probe. “This is a big milestone, and
were operating well in the first detailed performance                                                                                                               we’re looking forward to some amazing science data
and health update to be sent to Earth since the                                                                                                                     coming down in a few weeks.”
encounter began. Even so, it took several weeks                                                                                                                        During the 11-day solar encounter, the spacecraft
after the end of the phase before the science data                                                                                                                  executed only one autonomous “momentum

                                                                                                                                                                                                  SpaceFlight Vol 61 February 2019 5
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
BEHIND THE NEWS

Briefing                                                                    dump” – a procedure in which              are waiting in the corona", she said.

                                                        VIRGIN GALACTIC
                                                                          small thrusters are used to adjust              Parker Solar Probe is named for
                                                                          the speed of Parker’s reaction              Eugene Parker, the physicist who
                                                                          wheels. The wheels' rate of spin is         first theorized the existence of the
                                                                          adjusted to maintain the desired            solar wind – the Sun's constant
                                                                          orientation of the spacecraft relative      outpouring of material – in 1958.
                                                                          to the Sun. Momentum dumps are              "This is the first NASA mission to be
                                                                          expected during solar encounters,           named for a living individual”, said
                                                                          as the wheels spin up to counter            Fox. "Gene Parker’s revolutionary
                                                                          increased torque from the                   paper predicted the heating and
                                                                          gravitational effects of the solar          expansion of the corona and solar
                                                                          environment. Executing only one             wind. Now, with Parker Solar Probe,
                                                                          dump indicates that the spacecraft          we are able to truly understand
                                                                          is well balanced, minimizing the            what drives that constant flow out
                                                                          need for dumps during future solar          to the edge of the heliosphere.”
                                                                          encounters and saving propellant.               Our Sun's influence is far-
                                                                             Parker Solar Probe’s second              reaching. The solar wind fills up the
                                                                          perihelion will occur on 4 April 2019.      inner part of our solar system,
                                                                          However, during its seven-year              creating a bubble that envelops the
                                                                          mission lifetime, it will perform a         planets and extends far past the
                                                                          total of 24 perihelia, the last three       orbit of Neptune. Embedded in its
                                                                          of which will bring it to within seven      energised particles and solar
                                                                          million kilometres of the solar             material, the solar wind carries with
                                                                          surface – a mere whisker given the          it the Sun's magnetic field.
                                                                          Sun’s diameter of 1.4 million km.           Additional one-off eruptions of solar
OH SO CLOSE!                                                                                                          material, coronal mass ejections,
Virgin Galactic’s first revenue-earning flight,                           COLLATION                                   also carry this solar magnetic field
SpaceShip Two, exceeded the US Air Force                                  On 12 December, four researchers            and in both cases the magnetised
definition of the Earth-Space boundary on 13                              gathered at the fall meeting of the         material can interact with the
December when it achieved a record altitude                               American Geophysical Union in               Earth's magnetic field and cause
of 82.7 km – still somewhat short of the                                  Washington, D.C., to discuss what           geomagnetic storms. Such storms
internationally recognised and legally                                    they hope to learn from Parker Solar        can trigger the aurora or even
defined boundary of 100 km known as the                                   Probe.                                      power outages, while other types
Karman line. Carrying four NASA science                                      "Heliophysicists have been               of solar activity can give rise to
experiments, SpaceShip Two was piloted by                                 waiting more than 60 years for a            communications problems, disrupt
Mark “Forger” Stucky and Frederick “CJ”                                   mission like this to be possible",          satellite electronics and even
Sturckow, qualifying them for space wings                                 said Nicola Fox, director of the            endanger astronauts – especially
from the Federal Aviation Administration. As                              Heliophysics Division at NASA HQ.           beyond the protective bubble of
a four-time Shuttle pilot, Stuckow will be the                            (Heliophysics is the study of the           Earth's magnetic field.
first recipient of both NASA and FAA wings.                               Sun and how it affects space near               Other worlds in our solar system
                                                                          Earth, around other worlds, and             experience their own versions of
                                                                          throughout the solar system). "The          these effects, and far beyond the
GOING, GOING…                                                             solar mysteries we want to solve            planets, the Sun's material butts up
Massive planets so close to their parent star
that they are evaporating are so rare that
only one had been found. Now, a second                                      PARKER SOLAR PROBE IN CONTEXT
with an evaporating atmosphere has been
found by the Hubble Space Telescope at a                                    As the newest addition to NASA's          “Meanwhile, from a distance, we can
distance of only 5.95 million km from its host                              fleet of heliophysics missions, Parker    observe the Sun's corona, which is
(GJ3470b). These Neptune-size bodies are                                    Solar Probe works alongside               driving the complex environment
                                                                            satellites like NASA's Solar Dynamics     around Parker.”
losing their atmospheres at a prodigious rate
                                                                            Observatory, the Solar and Terrestrial       Modelling is another critical tool
and while they are not likely to be eroded,                                 Relations Observatory, and the            for painting the complete picture
others not so lucky may ablate under intense                                Advanced Composition Explorer. For        around Parker's observations. “Our
radiation from their parent star. More such                                 years, decades in some cases, these       simulation results provide a way to
planets are expected to be found.                                           spacecraft have scrutinised the Sun       interpret localised measurements
                                                                            and its outflowing material, changing     from in situ instruments like FIELDS
                                                  JPL

                                                                            the way we see our star. But they are     and SWEAP, as well as the more
                                                                            limited by their location.                global images produced by WISPR”,
                                                                               Even as Parker reveals new data,       said Pete Riley, a research scientist
                                                                            scientists working with it will rely on   at Predictive Science Inc., in San
                                                                            the rest of NASA's heliophysics fleet     Diego, California.
                                                                            to put it in context. “Parker Solar          Models are a good way to test
                                                                            Probe is going to a region we've          theories about the underlying physics
                                                                            never visited before”, said Terry         of the Sun. By creating a simulation
                                                                            Kucera, a solar physicist at NASA's       of a particular mechanism to explain
                                                                            Goddard Space Flight Center.              coronal heating – for example, a

6 Vol 61 February 2019 SpaceFlight
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
BEHIND THE NEWS

against the interstellar medium that

                                           UCL MAPS
fills the space between the stars.
The interactions in this region
influence the way high-energy
cosmic rays penetrate the solar
system. All of these effects result
from complicated systems, but
they all start back at the Sun,
making it vital to understand the
fundamental physics that drive its
activity.

THE “WHY” OF IT ALL
Parker Solar Probe is designed to
address three major questions
about the physics of the Sun. First:
how is the Sun's outer atmosphere,
the corona, heated to temperatures
about 300 times higher than the
visible surface below? Second: how
is the solar wind accelerated so
quickly to the speeds we observe?
And finally: how do some of the
Sun's most energetic particles
rocket away from the Sun at more
than half the speed of light?
    “Parker Solar Probe is providing
us with the measurements                               Expected now to launch in 2020, ESA’s next Sun-seeker, the Solar Orbiter spacecraft leaving the Airbus
                                                       Defence and Space satellite facility at Stevenage, UK, as Europe’s contribution to solar science.
essential to understanding solar
phenomena that have been puzzling
us for decades", says Nour Raouafi,                   atmosphere.                                     coronal mass ejections
Parker Solar Probe project scientist                     For example Parker Solar Probe's             Measurements of energetic particles
at APL. "To close the link, local                     imagers in the WISPR suite will give            gathered as the spacecraft travels
sampling of the solar corona and                      a new perspective on the young                  through such waves will shed light on
the young solar wind is needed and                    solar wind, showing how it evolves              the problem.
Parker is doing just that.”                           as the spacecraft travels through                  The electric field antennas of the
    Parker's instruments                              the corona. Similarly, the ISʘIS                spacecraft's FIELDS instrument suite
(SpaceFlight Vol 60, No 10) are                       suite will help scientists dig down             can pick up radio bursts that could
designed to look at these                             into the causes of energetic particle           explain the causes of coronal heating.
phenomena in ways that haven't                        acceleration. At present, theories              And the Solar Probe Cup instrument,
been possible before, giving                          diverge on how solar energetic                  which extends beyond the heat shield
scientists the opportunity to make                    particles are accelerated within the            and is fully exposed to the solar
new strides in the study of the solar                 thin shock waves usually driven by              environment, measures the thermal
                                                                                                      properties of different ion species in
                                                                                                      the solar wind. Coupled with data
                                                                                                      from FIELDS, these may reveal how
                                                                                                      the solar wind is heated and
certain kind of plasma wave called an      that drive much of its activity move                       accelerated.
Alfvén wave – scientists can check         along with it. That creates a problem                         The science team also expects to
the model's prediction against actual      for scientists, who can't always tell if                   be surprised by some of what they
data from Parker Solar Probe to see if     the variability they see is driven by                      learn. "We don't know what to expect
they line up. If they do, that means the   actual changes to the region                               so close to the Sun until we get the
underlying theory may explain what's       producing the activity – known as                          data, and we'll probably see some
actually happening.                        temporal variation – or by solar
                                                                                                      new phenomena", said Raouafi.
   “We’ve had a lot of success             material from a new source region –
predicting the structure of the solar      known as spatial variation. For part of                    "Parker is an exploration mission —
corona during total solar eclipses,”       its orbit, at least, Parker Solar Probe                    the potential for new discoveries is
said Riley. “Parker Solar Probe will       will outrun that problem. At certain                       huge."
supply measurements that will further      points, it travels fast enough to almost                      Although Parker Solar Probe's
constrain the models and the theory        exactly match the Sun's rotational                         reports indicate that good science
that’s embedded within them.”              speed, meaning that it “hovers” over                       data was collected during the first
   Parker Solar Probe is in a unique       one area of the Sun for a brief time.                      encounter, thanks to the relative
position to help improve the models        Scientists can be therefore be certain                     positions of the probe, the Sun and
– in part, because of its record-          that changes in data during this                           the Earth and their effects on radio
breaking speed. The Sun rotates            period are caused by actual changes
                                                                                                      transmission, some of it won't
about once every 27 days as viewed         on the Sun, rather than simply by its
from Earth, and the solar structures       rotation.                                                  downlink until after the second
                                                                                                      encounter in April 2019. SF

                                                                                                                                SpaceFlight Vol 61 February 2019 7
SpaceFlight Sun-skimmer - phones home - The British Interplanetary Society
BEHIND THE NEWS

                                                                                                                LEFT
                                                                                                                3-D rendition of
                                                                                                                Voyager 2.

                                                                                                                BELOW
                                                                                                                Two diverging
                                                                                                                plots showing
                                                                                                                its detection of
                                                                                                                cosmic rays and
                                                                                                                the number of
                                                                                                                solar particles
                                                                                                                over time.

                 After exiting the heliosphere…
                  FOR THE SECOND TIME IN               from the heliosphere came from          Together, the two Voyagers have
                  HISTORY an object made by            its onboard Plasma Science           given us a glimpse of how the
                  humans has reached the space         Experiment (PLS) – an instrument     heliosphere interacts with the
                  between the stars. NASA's            that stopped working on Voyager      constant interstellar wind flowing
                  Voyager 2 probe now has exited       1 in 1980, long before that probe    from beyond. Their observations
                  the heliosphere – the protective     crossed the heliopause.              complement data from NASA's
                  bubble of particles and magnetic        Until recently, the space         Interstellar Boundary Explorer
                  fields created by the Sun.           surrounding Voyager 2 was filled     (IBEX). NASA is also is preparing
                  Comparing data from different        predominantly with plasma            the Interstellar Mapping and
                  instruments aboard the               flowing out from the Sun. The        Acceleration Probe (IMAP), due to
                  trailblazing spacecraft, mission     PLS uses the electrical current of   launch in 2024, to capitalise on the
                  scientists determined the probe      the plasma to detect the speed,      Voyager observations.
                  crossed the outer edge on 5          density, temperature, pressure          “Voyager has a very special
                  November.                            and flux of the solar wind. The      place in our heliophysics fleet”,
                     This boundary, called the         PLS aboard Voyager 2 observed a      said Nicola Fox, director of the
                  heliopause, is where the             steep decline in this speed on 5     Heliophysics Division at NASA HQ.
                  tenuous, hot solar wind meets        November. Since then, the            "Our studies start at the Sun and
                  the cold, dense interstellar         instrument has observed no solar     extend out to everything the solar
                  medium. Voyager 1 crossed it in      wind flow, which makes mission       wind touches. To have the
                  2012, but Voyager 2 carries an       scientists confident the probe       Voyagers sending back information
                  instrument that will provide         has left the heliosphere.            about the edge of the Sun's
                  first-of-its-kind observations of       In addition to the plasma data,   influence gives us an
                  the nature of the gateway into       Voyager's science team has           unprecedented glimpse of truly
                  interstellar space.                  evidence from three other            uncharted territory."
                     Voyager 2 now is slightly more    onboard instruments: the cosmic         But while the Voyager probes
                  than 18 billion km from Earth.       ray subsystem, the low energy        may have left the heliosphere,
                  Mission controllers can still        charged particle instrument and      they have not yet departed the
                  communicate with it as it enters     the magnetometer. Data from          solar system, whose boundary is
                  this new phase of its journey, but   these may well give an even          considered to be beyond the Oort
                  signals take around 16.5 hours to    clearer picture of the               Cloud – a collection of small
                  reach Earth. The most compelling     environment through which            objects that are still under the
                  evidence of the spacecraft's exit    Voyager 2 is now travelling.         influence of the Sun's gravity. The

8 Vol 61 February 2019 SpaceFlight
BEHIND THE NEWS

                                                                                                               Briefing

                                                                                           IMAGES : NASA/JPL
                                                                                                               WHO IS PAXI?
                                                                                                               No, not the pithy former BBC presenter
                                                                                                               but ESA’s updated education mascot,
                                                                                                               which aims to appeal to a younger
                                                                                                               audience with space-inspired STEM
                                                                                                               content for primary school age. The
                                                                                                               website is available in English, German,
                                                                                                               Dutch, Spanish, French and Italian.

                                                                                                               MORE KIDS' STUFF
                                                                                                               The UK Space Agency is awarding
                                                                                                               £325,000 to the UK Association for
                                                                                                               Science and Discovery Centres (ASDC) to
                                                                                                               bring space science to young families
ABOVE                                                                                                          across the UK by creating new resources
A diagram showing the relative positions of the Voyager probes in 2012. In the six years
since, both spacecraft are thought to have safely crossed crossed the heliopause.
                                                                                                               based on real scientific and engineering
                                                                                                               challenges – including those facing the
                                                                                                               operation of UK spaceports, rockets and
                                                                                                               spaceplanes. Up to 14 UK science centres

what now, Voyager?
                                                                                                               and museums will deliver activities to
                                                                                                               200,000 children and adults until March
                                                                                                               2021, building on the success of ASDC’s
                                                                                                               Destination Space education programme,
                                                                                                               which reached more than 900,000 people
width of the Oort Cloud is not                 five years, and to conduct                                      during Tim Peake’s Principia mission.
known precisely, but is estimated              close-up studies of Jupiter and
to begin about 1,000                           Saturn. But as the mission
astronomical units (AU) from the               progressed, additional flybys                                   RUSSIAN HEAVY
Sun and to extend to about                     were made of the two outermost                                  Russia’s space agency Roscosmos has
100,000 AU. (One AU is the                     giant planets, Uranus and                                       announced plans for a super-heavy
distance from the Sun to Earth.)               Neptune, and remote-control                                     launcher at an estimated cost of $22.6
It will take about 300 years for               reprogramming endowed the                                       billion. Tentatively given a 2028 launch
Voyager 2 to reach the inner edge              Voyagers with greater capabilities                              date, the rocket is intended to support
of the Oort Cloud and possibly                 than they possessed when they                                   circumlunar flights with a next-generation
30,000 years to fly beyond it.                 left Earth. At 41 years, and still                              spacecraft yet to be funded. Roscosmos
   The Voyagers are powered by                 going strong, Voyager 2 is NASA's                               is urging the government to make a
radioisotope thermal generators                longest running mission. SF                                     decision by 15 January 2019 and is keen
(RTGs), whose power output                                                                                     to offer fee-paying flights around the
diminishes by about four watts                                                                                 Moon under a separate initiative.
per year. As a result, various
parts of the spacecraft, including
their cameras, have been turned                                                                                ARTES ALOFT
off over time to conserve power.                                                                               Two 5 kg satellites, designed and built by
   “I think we're all happy and                                                                                Spire Global, and unique due to their tiny
relieved that the Voyager probes                                                                               size, low cost and quick build time, were
have both operated long enough                                                                                 launched from Sriharikota, India, on 29
to make it past this milestone”,                                                                               November 2018. This style of satellite
said Suzanne Dodd, Project                                                                                     could revolutionise work in space, which
Manager at NASA's Jet                                                                                          has traditionally been slow and expensive
Propulsion Laboratory. “Now                                                                                    for business and science to access. The
we're looking forward to what                                                                                  satellites were developed under the
we'll learn from having both                                                                                   European Space Agency’s ARTES Pioneer
                                               ABOVE
probes outside the heliopause."                                                                                programme, of which the UK is the largest
                                               Heliocentric velocity over distance from
   Voyager 2 launched in 1977, 16              the Sun for Voyager 2 showing how the                           funder, and will aim to prove the value of
days before Voyager 1. The                     spacecraft received escape velocity at                          nanosats in weather monitoring by using
spacecraft were intended to last               Jupiter almost 40 years ago.                                    them to measure refracted radio signals
                                                                                                               passing through the Earth’s atmosphere.

                                                                                                                         SpaceFlight Vol 61 February 2019 9
Is this really the end?
               WITHOUT SO MUCH as a                          But on 11 September 2018,
                                                                                                      passive listening efforts for
                                                                                                      several months in the hope that a
                                                                                                      “dust devil” literally sweeps the
                                                                                                      arrays clean. Such “cleaning
                                                                                                      events” were first discovered by
               “goodbye”, NASA’s Mars rover               data from MARCI showed that                 the Mars rover teams in 2004
               Opportunity has fallen silent and          the tau estimate – a measure of             when, on several occasions,
               may never be heard from again. Its         the amount of haze in the Martian           battery power levels aboard both
               last communication with Earth was          atmosphere – in the skies above             Opportunity and its twin Spirit
               on 10 June, just before it was             the rover's current resting place in        increased by several percent
               overwhelmed by a major dust                Perseverance Valley was below               during a single Martian night.
               storm. Its current health is               1.5 for two consecutive readings.               Even if the team hears back
               unknown. Now, Opportunity                  A month after that, JPL engineers           from Opportunity, there is no
               engineers are relying on data from         reported they were employing a              guarantee that it will still be
               the Mars Color Imager (MARCI) on           combination of listening and                operational. However, the team is
               NASA’s Mars Reconnaissance                 commanding methods in case                  cautiously optimistic, knowing
               Orbiter (MRO) to estimate the              Opportunity is still operational.           that the little rover has overcome
               opacity near the rover’s position.            In the unlikely event that the           many such challenges during its
                  “The dust haze produced by the          rover's solar arrays are simply             14-plus years on Mars. In 2005, it
               global dust storm of 2018 is one of        blocked by dust, starving it of             lost its right front steering,
               the most extensive on record”, said        energy, the team plan to continue           followed by its left front steering
               MRO Project Scientist Rich Zurek in
               August. “If we don't hear back after
               45 days, we'll be forced to conclude
               that the Sun-blocking dust and the
               Martian cold have conspired to
               cause some type of fault from
               which the rover will more than likely
               not recover”.

Briefing                                                 Opinion

                                                         HUMANS OR ROBOTS?
COMSAT CANCELLED
Boeing has cancelled a contentious satellite
order financed via a Chinese government-
owned firm on the basis of default by
non-payment. Nearing completion, the                     AS WE ALL BECOME A LITTLE STARRY-EYED reflecting on the magnificent
satellite will probably be sold to another               success of the dramatic Apollo missions 50 years ago, spare a thought for the
customer. The move follows an investigation              largely unsung heroes who daily tend the less dramatic but equally laudable
of China’s veiled and circuitous route to                constellation of unmanned, deep-space emissaries that bring results pivotal to
obtaining the satellite, ostensibly                      our understanding of the solar system and of life itself.
manoeuvring its way around regulations and                  A progression of discovery, enabled by innovation, sustains a deepening
US export controls in funding the $200 million           commitment to planetary exploration – and to autonomous and semi-robotic
order. Security concerns had been expressed              probes that define the content of our celestial back-yard. Investment in this broad
regarding the intent of the buyer.                       band of investigation is essential, for it is through basic research that the
                                                         fundamental principles governing the very origin of matter rub shoulders with a
                                                         better understanding of structures at physical, chemical and biological levels.
                                                 BOING

                                                            As we move toward a bigger investment in human space flight, should we be
                                                         worried that its voracious demand on budgets will stunt the work that underpins
                                                         basic exploration and exciting discoveries that ensue? Are we locked into
                                                         human space flight for its own sake? Its costs have frequently been at the
                                                         expense of essential, but less popularly dramatic, unmanned programmes. Is this
                                                         something we should guard against; something we should avoid?
                                                            Since President Kennedy chastised NASA Administrator James Webb for
                                                         attempting to engage the agency in broader objectives than the Moon alone,
                                                         science has paid the bills demanded by high-cost, vote-catching manned space
                                                         projects. It happened again during the 1970s, when NASA’s budget fell through
                                                         the floor – and again in the 1980s, when the Space Shuttle demanded yet more

10 Vol 61 February 2019 SpaceFlight
BEHIND THE NEWS

in June 2017, and its 256 Mb flash
memory is no longer functioning.
In fact, almost everything aboard
the rover is well beyond its
warranty period. Opportunity and
Spirit were both built for 90-day
missions, yet Spirit lasted 20
times longer than this and
Opportunity nearly 60 times
longer. Equally, the rovers were
designed to travel 1,000 metres,
whereas Opportunity has logged
an incredible 45.16 km. Through
thick and thin, it has soldiered on.
Now, engineers and scientists are
hoping this latest dilemma is just
another bump in the Martian road.
    “In a situation like this you
hope for the best, but plan for all
eventualities”, said Project
Manager John Callas. “We are all
pulling for our tenacious rover to
pull her feet from the fire one
more time. And if she does, we
will be there to hear her.”
    The windy period on Mars,
known to the team as “dust-
                                        IMAGES: NASA/JPL

clearing season”, occurs from
November to January, so NASA
will review the situation at the
end of January 2019 and decide
whether to pursue attempts to
          contact the rover, 15
            years after it landed. SF

                                                           The last resting place for Opportunity? A view across Perseverance Valley on Sol 4959 in January 2018.

                                                                                                                          Briefing
                                                                                                                          ADELAIDE ON THE “UP”
     The success of relatively low-cost science and planetary                                                             Australia’s new National Space Agency
        missions should not be upstaged by popular, PR-                                                                   (ANSA) is to be located at Lot 14 of the old
                                                                                                                          Royal Adelaide hospital. With an annual
        grabbing headlines on sending humans into space                                                                   budget of $41 million it will engage with
                                                                                                                          industry and commercial organisations to
                                                                                                                          connect indigenous assets with the global
money. In fact, by proclaiming a capacity to launch 60 flights year, the budget for                                       space market. Australia has a long and
the actual payloads to fly on Shuttle missions was completely left out.                                                   proud history in space, being with the site
   Over time, a balance between manned and unmanned programmes was sought                                                 of British rocket tests in the 1940s, 50s
but hardly realised. Today the International Space Station is only just getting into                                      and 60s, and later of NASA deep-space
its stride for want of funds among its user-base. Now we are faced with a                                                 tracking and communications, including a
scramble for dollars once more and already the costly SLS/Orion programme is                                              prominent role in the Apollo missions.
scraping the barrel for money. At the cost of science and unmanned
programmes? Not quite so much this time, but the writing is on the wall.
                                                                                                                 ANSA

   One very big elephant in the room where money is concerned is the balance
between what we do because of what we ”can” and what we do because we
“should”. The success of relatively low-cost science and planetary missions
should not be upstaged by popular, PR-grabbing headlines on sending humans
into space – laudable as that is, so long as it is productive. But if there is no
compelling need to do so: remember the many scientists, engineers, technicians
and managers who each day, around the clock, proudly guide our robotic
emissaries to inaccessible places where no human feet will ever tread.
    SpaceFlight applauds and supports a sustainable human presence in space –
but synergistically, and not at the expense of the funding essential to push the
frontiers of space far beyond human access SF                            David Baker

                                                                                                                                     SpaceFlight Vol 61 February 2019 11
ISS REPORT

                      ISS Report               9 November – 8 December 2018
                                                                                           BELOW ROSCOSMOS / RIGHT: NASA

                               Expedition 57 is into its second month of operations. The
                               crew returned to six in early December, when ESA German
                               commander Alexander Gerst, American Serena Auñón-
                               Chancellor and Russian Sergey Prokopyev were joined by
                               new Soyuz arrivals American Anne McClain, Russian Oleg
                               Kononenko, and Canadian David Saint-Jacques.
                               Report by George Spiteri

12 Vol 61 February 2019 SpaceFlight
ISS REPORT

                                                                                      time) and was retrieved by Japanese recovery ships
                                                                                      over three hours later.
                                                                                          Meanwhile, Prokopyev cleaned and stowed
                                                                                      the chamber of the PK-4 experiment and assisted
                                                                                      his colleagues with regular maintenance and
                                                                                      household chores during the crew’s light-duty
                                                                                      weekend 10/11 November.
                                                                                          On 12 November, Gerst and Auñón-Chancellor
                                                                                      conducted further work with the PK-4 study
                                                                                      and checked and watered the plants inside the
                                                                                      Veg-03 facility, whilst Prokopyev took part in the
                                                                                      Morze psycho-physiological test and the Splanh
                                                                                      biomedical experiment.
                                                                                          The following day, Gerst began four days of
                                                                                      work inside Columbus with ESA’s Crew Interactive
                                                                                      MObile companioN (CIMON) free-flying robot
                                                                                      which aims to obtain the first insights into the
                                                                                      effects on crew support with the help of artificial
                                                                                      intelligence. He admitted in a tweet he “had so
                                                                                      much FUN” testing his “skills for the first time” on
                                                                                      the station with the German built device. Auñón-
                                                                                      Chancellor performed various maintenance tasks
                                                                                      and worked with the Life Sciences Glovebox (LSG)
                                                                                      before the United States Orbital Segment (USOS)

O
                                                                                      crew joined Prokopyev for a series of routine eye
          n 9 November the three person crew of                  ABOVE                examinations in conjunction with doctors on the
          Gerst, Auñón-Chancellor and Prokopyev        Two spacecraft at the ISS:     ground.
                                                         the Northrop Grumman
          worked with NASA’s Veg-03 and                                                   Gerst teamed up with Prokopyev on 14
                                                      Cygnus cargo craft from the
          Biomolecule Extraction and Sequencing       United States (left) attached   November to practice manual docking techniques
          Technology (BEST) experiments. Gerst           to the Unity module and      for the imminent arrival of the next Progress
also studied how astronauts perceive time in space         still in the grip of the   unmanned vehicle in case the automatic system
and configured a specialised microscope for further   Canadarm2 robotic arm, and      failed. The Station’s commander moved on to assist
                                                        the Russian Soyuz MS-09
protein crystal observations, whilst his Russian      crew ship from Roscosmos        Auñón-Chancellor to practice robotics operations
colleague continued his week-long research with           docked to the Rassvet       for Cygnus’ arrival.
the joint Russian/ESA Plasma-Kristall-4 (PK-4)                      module.               On 15 November, the trio conducted further
investigation.                                                                        eye tests, worked with NASA’s Meteor experiment,
   JAXA reported that the Kounotori-7 (White                                          which examines the chemical composition
Stork-7) unmanned cargo craft “successfully                                           of meteors entering Earth’s atmosphere and
re-entered the atmosphere after the third de-                                         completed another of NASA’s Food Acceptability
orbit manoeuvre” at 21:14 UTC on 10 November                                          questionnaires, which look at the nutritional intake
resulting in the spacecraft conducting a planned                                      of ISS crewmembers.
destructive re-entry over the north western Pacific
Ocean. Following the de-orbit burn Kounotori                                          PROGRESS AT LAST
                                                             ABOVE RIGHT
released the HTV Small Re-entry Capsule (HSRC)        Serena Auñón-Chancellor         Progress MS-10/71P was launched from Baikonur
containing approximately 20 kg of science             performs plumbing duties        at 18:14 UTC on 16 November (00:14 17 November
experiments, including samples from a Japanese          inside the International      local time) atop a Soyuz-FG rocket. This followed
Protein Crystal Growth investigation. The 840         Space Station's toilet, also    the recent Soyuz MS-10 abort (SpaceFlight Vol
                                                       known as the Waste and
mm diameter capsule splashed down in the Pacific        Hygiene Compartment,
                                                                                      61, No 1, pp 7-8) and paved the way for the
Ocean off the south eastern Japanese coast at 22:06    located in the Tranquility     next crewed Soyuz mission. Progress docked
UTC on 10 November (07:06 11 November local                     module.               to the aft port of Zvezda at 19:28 UTC on 18

                                                                                                           SpaceFlight Vol 61 February 2019 13
ISS REPORT

                                                  LEFT
                                            Expedition 58 crew
                                         members Anne McClain
                                           of NASA (left), Oleg
                                       Kononenko of Roscosmos
                                        (centre) and David Saint-
                                        Jacques of the Canadian
                                      Space Agency hold “launch
                                        keys” presented to them
                                       during a tour of the launch
                                         facility at Baikonur. On 3
                                         December they lifted off
                                       safely aboard Soyuz flight
                                                MS-11 (top).

14 Vol 61 February 2019 SpaceFlight
ISS REPORT

  November as the complex flew 405.5 km above                                           in Station history that two cargo spacecraft
Algeria. Progress delivered 1,300 kg of dry cargo,                                      had arrived “in one day” and praised the “great
including food, experiments and spare parts,                 Asked what they            teamwork” that made it possible.
725 kg of propellant, 420 kg of water and 50 kg
of compressed air and oxygen to replenish the               missed most, the            BIRTHDAY FEASTS
atmosphere on the ISS. Three hours later, following                                     It was a red-letter day on 20 November, marking
leak checks, Prokopyev began immediately                          station’s             the 20th anniversary of the launch of Zarya, the
unloading critical science hardware to the station.                                     first element of the station in 1998 (SpaceFlight Vol
   Following two delays due to weather, Northrop
                                                            commander listed            40, No12, p 457). To commemorate the event Gerst
Grumman launched their Cygnus unmanned
cargo spacecraft, (NG-10) atop an Antares 230
                                                               several things           tweeted; “Congratulations” to all ISS partners and
                                                                                        past crews, adding that he felt “privileged to serve
rocket from the Mid-Atlantic Regional Spaceport              including “really          on the greatest machine ever built”. The crew also
(MARS) launch pad 0A at Wallops, Virginia at                                            took time out to answer questions via Facebook
09:01 UTC (04:01 local time) on 17 November.                  great food, like          Live. Asked what they missed most, the station’s
Cygnus was grappled by Canadarm2 at 10:28 UTC                                           commander listed several things including “really
on 19 November as the Station flew 421.6 km above          salads” in addition          great food, like salads” in addition to “taking a
the southern Indian Ocean. Named in honour of                                           shower….November rain” and “a walk in the forest”.
pioneer astronaut John Young, the spacecraft was                to “taking a                Auñón-Chancellor spent most of the following
berthed onto the Earth facing port of Unity over
two hours later at 12:31 UTC. Cygnus delivered
                                                                 shower….               day inside Kibo working on life support gear and
                                                                                        later joined Gerst for a debriefing about the progress
3,268 kg of pressurised cargo, including a new 3D
printer and an experiment which aims at growing
                                                              November rain”            of Cygnus cargo operations. Prokopyev worked
                                                                                        on Russian life support gear and continued with
crystals to fight Parkinson’s disease and 82 kg of         and “a walk in the           unloading items from Progress.
unpressurised cargo.                                                                        The crew enjoyed US Thanksgiving Day on
   Auñón-Chancellor and Gerst began several                       forest”.              22 November with light-duty activities. Gerst
days of unloading Cygnus. NASA Deputy ISS                                               and Auñón-Chancellor sent down a short video
Programme Manager, Joel Montalbano reassured                                            message wishing everyone their best wishes from
reporters that having a crew of three was “not an                                       space for the holiday. Auñón-Chancellor told
issue” when transferring cargo from two newly                                           viewers “we’ve got everything from turkey to
arrived spacecraft, “critical science samples will                                      candied yams, to stuffing, to special spicy pound
get unloaded first….then we unload as necessary”.                                       cakes, we’re very excited”.
Gerst proudly tweeted that this was first time                                              On 23 November, the crew resumed unloading

  MAY THE FOREST BE WITH YOU!
  An acronym for the Global Ecosystem Dynamics Investigation,
  GEDI, pronounced like JEDI of Star Wars fame, is a first of its kind
  laser instrument designed to map the world’s forests in 3D. GEDI
  will aim to provide answers as to how deforestation has
  contributed to atmospheric C02 concentrations, how much carbon
  forests will absorb in the future and how habitat degradation will
  affect global biodiversity.
     GEDI will observe nearly all tropical and temperate forests
  using a self-contained laser altimeter on the ISS. The data will be
  of great value for forest and water resource management, carbon
  cycle and weather predictions. PI Dr. Dubayah said “scientists
  have been planning for decades to get comprehensive
  information about the structure of forests from space to deepen
  our understanding of how this structure impacts carbon
  resources and biodiversity across large regions and even                The GEDI instrument gets a checkout before launch.
  globally, as well as a host of other science issues”.
     GEDI's three lasers will produce eight ground tracks – two of
  the lasers will generate two ground tracks each, and the third will    mission in mid-2019, but the team at Goddard who is building and
  generate four. As the space station and GEDI orbit Earth, laser        testing GEDI was always on track to deliver a finished instrument
  pulses will reflect off clouds, trees and the planet's surface.        by the fall of this year”, said Project Manager Jim Pontius,
  While the instrument will gather height information about              making the move to an earlier resupply mission feasible.
  everything in its path, it is specifically designed to measure            NASA selected the proposal for GEDI in 2014 through the Earth
  forests. The amount and intensity of the light that bounces back       Venture Instrument programme, which is run by NASA’s Earth
  to GEDI's telescope will reveal details about the height and           System Science Pathfinder (ESSP) office. ESSP oversees a
  density of trees and vegetation, and even the structure of leaves      portfolio of projects ranging from satellites, instruments on the
  and branches within a forest's canopy.                                 space station and sub-orbital field campaigns on Earth that are
     NASA has flown multiple Earth-observing lidars in space,            designed to be lower-cost and more focused in scope than larger,
  notably the ICESat (Ice, Cloud and land Elevation Satellite) and       free-flying satellite missions.
  CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite            GEDI was built at NASA’s Goddard Space Flight Centre and is a
  Observation) missions. But GEDI will be the first to provide           joint NASA/University of Maryland project. GEDI will be moved
  high-resolution laser ranging of Earth's forests.                      from Dragon’s trunk and mounted on the Japanese Experiment
     “GEDI originally was scheduled to launch aboard a resupply          Module-External Facility (JEM-EF).

                                                                                                                SpaceFlight Vol 61 February 2019 15
ISS REPORT

  items from Cygnus and Progress. They also
worked with the Multi-use Variable-g Platform
(MVP) facility and conducted a status check on
NASA’s Microgravity Experiment Research Locker
Incubator (MERLIN) freezer.
    The crew continued with cargo transfers during
their light-duty weekend 24/25 November. Gerst
began the working week on 26 November observing
protein crystals associated with Parkinson’s disease,
whilst Auñón-Chancellor jotted down her space
experiences as part of CSA’s At Home In Space
(AHIS) psychological study and later set up
hardware for a semiconductor crystal experiment.
    Gerst devoted a second day to working with
the protein crystals study on 27 November, whilst
Auñón-Chancellor researched how cement hardens
in space and continued setting up hardware for
the semiconductor study. Prokopyev spent most
of the day configuring the Russian segment for
a rescheduled space walk in mid-December
(SpaceFlight Vol 61, No1, p 8) and the following
day he began preparing the Soyuz spacecraft for its
return to Earth.
    The crew were photographed inside the Bigelow
Expandable Activity Module (BEAM) on 29                           ABOVE                 for an impending Russian EVA to inspect the
November as Bigelow Aerospace tweeted that               Serena Auñón-Chancellor        damage which caused the pressure leak to Soyuz
                                                          is pictured mixing protein
“BEAM has successfully completed its mission as a                                       MS-09 the previous August (SpaceFlight Vol 60,
                                                            crystal samples to help
technology demonstration”. BEAM was “officially              scientists understand      No11, pp 13-14).
certified by NASA for a life extension on the space        how they work. Proteins          Following a one day delay to allow ground teams
station”.                                               crystallized in microgravity    to replace contaminated food bars aboard Dragon
    On 30 November, Auñón-Chancellor conducted            are often higher in quality   for 40 mice who are part of the Rodent Research-8
                                                         than those grown on Earth
more work solidifying cement in microgravity and          and present opportunities     (RR-8) experiment, SpaceX launched Dragon atop
worked with the Cemsica technology experiment,          for the development of new      a Falcon 9 rocket on the Commercial Resupply
whilst Prokopyev continued to prepare for the               drugs to treat disease.     Services-16 (CRS-16) mission at 18:16 UTC (13:16
upcoming spacewalk and Gerst ended the week                                             local time) on 5 December from Space Launch
with further experiments on protein crystals.                                           Complex 40 at Cape Canaveral Air Force Station
    The crew enjoyed another light-duty weekend                                         (CCAFS).
1/2 December conducting regular housekeeping            …landing intact, it                 This particular Dragon was making its second
chores, exercising and talking to family and friends.                                   visit to the ISS having previously flown on the CRS-
                                                        tipped over in the              10 mission in 2017 (SpaceFlight Vol 59, No 5, p
SOYUZ SUCCESS                                                                           169). Approximately eight minutes after launch, the
ISS programme managers breathed a collective sigh        water about 3.21               booster’s first stage failed to land as planned back at
of relief when Soyuz MS-11/57S was successfully                                         Landing Zone 1 at CCAFS; although landing intact
launched from Baikonur’s Site 1 at 11:31 UTC            km off the Florida              it tipped over in the water about 3.21 km off the
(17:31 local time) on 3 December atop a Soyuz-FG
rocket carrying spacecraft commander, Russian
                                                              coast                     Florida coast. SpaceX CEO Elon Musk tweeted this
                                                                                        was due to a “Grid fin hydraulic pump” stalling and
aeronautical engineer Oleg Kononenko (54) on his                                        the booster “Appears to be undamaged”.
fourth spaceflight, and rookies, US Army Colonel                                            Dragon was grappled by Canadarm2 some 1
Anne McClain (39) and Canadian astrophysicist                                           hr 21 min later than planned at 12:21 UTC on 8
and doctor David Saint-Jacques (48). Soyuz docked                                       December due to a communications problem with
to Poisk after four orbits and over six and a half                                      a Tracking and Data Relay Satellite System (TDRSS)
hours later at 17:33 UTC as the Station flew 403.9                                      as the complex flew 400.7 km above the Pacific
km above the Atlantic Ocean.                                       RIGHT                Ocean north of Papua New Guinea. Over three
    The hatches were opened over two hours later         A current view of the ISS      and a quarter hours later at 15:36 UTC ground
                                                          from above the Russian
at 19:37 UTC returning the ISS to a six person           Service Module (bottom)        controllers berthed Dragon on the Earth facing port
complement. The new arrivals spoke to space             with its solar cells and the    of Harmony. Dragon delivered 2,523 kg of supplies,
officials, family and friends during the traditional     MRM-2 module on top at         hardware and experiments to the ISS.
welcoming ceremony inside Zvezda, which was              the docking port with the          Two key investigations housed in Dragon’s
                                                          Functional Cargo Block
followed by the mandatory safety drill headed by                                        unpressurised trunk were the Robotic Refueling
                                                         – the second of Russia's
Gerst.                                                  main pressurised modules        Mission-3 (RRM-3) which Project Manager Jill
    On 4 December, Kononenko, McClain and               attached to NASA's PMA-1        McGuire said will “help satellites to live longer” and
Saint-Jacques began several days familiarising            and the Unity module at       the Global Ecosystem Dynamics Investigation
themselves with their new orbital home, whilst             top. Note the Bigelow        (GEDI) laser altimeter, whose goal according to
                                                           expendable module on
Gerst and Auñón-Chancellor prepared for the              Node 3 at top left and the     Principal Investigator (PI) Dr Ralph Dubayah “is
arrival of the next unmanned Dragon spacecraft          Airlock Module just visible     really fairly simple, it’s to use laser beams to
and Prokopyev joined Kononenko in preparations                   at top right.          measure how tall trees are globally”. SF

16 Vol 61 February 2019 SpaceFlight
ISS

                                                                                                                 ESA
Catch a satellite…
 track lightning…
   …or chat with a

                                      space
Research payloads from Europe or with a European contribution are on nearly
all US cargo vessels to the International Space Station. Here, we describe the
larger ISS science payloads with European involvement launched on SpaceX
Dragon capsules in the period February 2017 to June 2018.
by Gerard van de Haar FBIS

T
          he SAGE-III, Stratospheric Aerosol and Gas           ABOVE          flew 1979-81 on board the AEM-B satellite and had
          Experiment-III, is a NASA instrument built       ESA astronaut      only four spectral channels but was instrumental in
          as part of the EOS (Earth Observing System)     Alexander Gerst     gathering data on the ozone hole above Antarctica for
                                                            gets up close
          programme, and consists of an grating             and personal      nearly three years.
          spectrometer that measures near-UV/visible/     with the seventh       It was followed by SAGE-II in 1984 on the ERBS
near-IR energy through the Earth's limb during solar        crewmember        satellite (launched on Shuttle 41G with astronaut
and lunar occultations and limb scattering during the      aboard the ISS     Sally Ride shaking a stuck solar panel free) and
                                                          – the robo-head
daytime side of the orbit. The goal is to determine the   CIMON, first on
                                                                              SAGE-II operated until 2005 making many important
spatial distributions of stratospheric aerosols, ozone,   a path to true AI   observations in seven wavelengths on the chemistry
nitrogen dioxide, water vapour and cloud occurrence          data banks.      and dynamic motions of the Earth's upper troposphere
by mapping vertical profiles and calculating monthly                          and stratosphere (10-40 km high).
averages of each.                                                                Next up was the first SAGE-III instrument which
   As the name implies, SAGE-III comes from an                                operated on the Russian Meteor-3M satellite 2001-6.
earlier series of instruments. First up was a small                           A duplicate SAGE-III is now on the ISS; it operates
precursor device called SAM flying on the nine-day                            as a true follow-on instrument in multi-wavelengths,
Apollo-Soyuz manned flight back in 1975; SAGE-I                               measuring the whole atmosphere. A third SAGE-III is

18 Vol 61 February 2019 SpaceFlight
SLUG

robot
kept in storage.
   SAGE-III weighs 527 kg (including its Nadir
                                                                              “MUSES is the first multiuser platform facility for
                                                                          truss mounted external payloads on the ISS”, said Paul
Viewing Platform, NVP) and is approximately 2 x            “MUSES is      Galloway, its programme manager at TBE, days before
1 x 1 m large; the instrument was built by NASA                           the launch. “It has huge data downlink capability (and)
Langley, Ball, ESA’s ESTEC and TAS-Italy with ESA’s      not a science    gives us multiple viewing angles too. MUSES is not a
Hexapod device being instrumental in keeping SAGE’s                       science instrument, it’s a technology. It expands one ISS
tracking as stable as possible. SAGE-III was installed    instrument,     external payload site into four.”
by the Canadarm2 on ISS’s external ELC-4 platform
on 5 March 2017, two weeks after launch. First data
                                                              it’s a         The MUSES pointing accuracy is better than 30
                                                                          arc seconds, which corresponds to about 60 m on the
products were released in October 2017 showing
evidence of further ozone layer recovery, initially
                                                         technology. It   ground at the nominal ISS altitude of 400 km. “The
                                                                          repeated exposure to the Earth’s land masses gives you
observed by SAGE-II; a year later first results were      expands one     a good revisit time for target areas. MUSES’ ability
presented at a NASA Colloquium.                                           to point and track ground targets also enhances the
                                                          ISS external    revisit opportunities and viewing angles”, Mr. Galloway
EARTH GAZERS                                                              pointed out.
MUSES (Multiple User System for Earth Sensing)            payload site       In a recent phone interview Mr. Jack Ickes, TBE
is an external platform developed specifically to
carry multiple 50-100 kg class Earth observation
                                                           into four“     Senior Vice-President of Geospatial Solutions, added:
                                                                          “Early during construction of MUSES, contact with
instruments. It was developed by Teledyne Brown                           DLR was established and soon the German Aerospace
Engineering (TBE) in Huntsville, Alabama, who                             Centre expressed their intention to provide a large
supplies other ISS payloads like the glovebox                             remote sensing sensor for one of the four slots.”
series, crystal growth furnaces, and Earth science                        MUSES is a relatively small platform with a mass of 305
experiments. The company is also the prime contractor                     kg and is about 1 x 1x 0.5 m in size. It was installed by
on the ISS Mission Operations and Integration contract                    Canadarm2 on the external ELC-4 fixture a week after
for the Payload Operations and Integration Center at                      launch and was soon declared fully operational.
NASA’s Marshall Space Flight Center.                                         The DLR Earth Sensing Imaging Spectrometer

                                                                                                   SpaceFlight Vol 61 February 2019 19
ISS

  (DESIS), launched in June 2018 aboard CRS-15, was
unpacked by astronauts Gerst and Feustel on 20 August
and transferred by the Dextre arm from the Kibo
airlock to the MUSES platform on 27 August. DESIS is
a hyperspectral visible/IR detector (400-1000 nm) with
30 m resolution, weighing 88 kg and 0.9 x 0.6 x 0.5m in
size. Initial Operating Capability (when the first images
were received) was achieved after only two days.
    Commissioning was completed in October with Full
Operating Capability achieved before the end of 2018.
DESIS will provide information to assess the situation
following environmental disasters, to help farmers
manage their land in a targeted manner, and provide
scientists with a basis for innovative atmospheric
correction algorithms. This 235 channel ground-
controlled instrument can operate 5-7 years. First results
presented by DLR in October show great promise.

STAR TRACK
NICER (Neutron Star Interior Composition Explorer)
is a finely tuned spectrometer with 56 telescopes that
are capable of spotting the thermal and non-thermal
emissions of fast rotating neutron stars (also called
pulsars) in the distant universe. It operates by scanning
with a soft X-ray Timing Instrument (XTI), which will
be able to see the inner-workings of these complex
objects to understand the forces that create them.
They are “small” stellar objects containing ultra-dense
matter at the threshold of collapsing into black holes;
presently about 2,000 pulsars are known. In addition to
its principal science goals, NICER will enable the first
demonstration of spacecraft navigation using pulsars as
beacons, through the Station Explorer for X-ray Timing
and Navigation Technology (SEXTANT) enhancement.                  ABOVE            magnetic objects known.” Of SEXTANT he said: "The

                                                                                                                                              IMAGES: GERARD VAN DE HAAR (LEFT); ESA (ABOVE)
     “Neutron stars are fantastical stars that are               Designed to       fact that we have these pulsars apparently flashing away
                                                             chase storms and
extraordinary in many ways”, said Zaven Arzoumanian,         investigate violent
                                                                                   in the sky (hundreds of times per second) makes them
NICER’s deputy principal investigator and science lead        lightning bursts,    interesting as [navigation] tools."
at NASA Goddard, shortly before launch. “They are the         ASIM is attached        NICER weighs 372 kg and measures approximately
densest objects in the universe, they are the fastest-          to the exterior    1.5 x 1.5 x 1.5 m. Next to NASA Goddard and MIT,
spinning objects known, they are the most strongly            platorm of ESA’s     the company MOOG and the Technical University of
                                                             Columbus module.
                                                                                   Denmark (DTU) are involved.
                                                                                      On 12 June 2017, a week after Dragon CRS-
                                                                                   11 docked to ISS, NICER was picked-up by the
                                                                                   Canadarm2 from Dragon’s trunk and two days later
                                                                                   installed on the external ELC-2 platform, very close to
                                                                                   the AMS-2 particle physics module which was already
                                                                                   placed there in 2011 on STS-134. After a check-out
                                                                                   month, NICER began science operations on 17 July.
                                                                                   In January 2018 the first data proved that pulsars can
                                                                                   indeed be used as a universal GPS.
                                                                                      In May 2018 NICER found two stars that revolve
                                                                                   around each other every 38 minutes – the record for
                                                                                   the shortest known orbital period for a certain class
                                                                                   of pulsar binary system, being only 300,000 km apart
                                                                    LEFT
                                                                                   from each other (less than the distance from Earth to
                                                              Prof. Dr. Torsten    the Moon – 384,000 km). Already after eight months
                                                             Neubert from the      of observations the NICER data archive was opened in
                                                             Danish Technical      March 2018 with records of over 3,000 observations.
                                                              University hopes     Data gathering is planned to last 18 months. In
                                                                  to provide
                                                                  significant      September NASA also allowed guest scientists to use
                                                               understanding       NICER.
                                                               of lightning and
                                                                the transient      EXCESS ENERGY
                                                             lights above such
                                                              phenomena from
                                                                                   Research that started with balloons now culminates
                                                             his work with data    in a three-year stint aboard the ISS as scientists work
                                                                from ASIM. .       on solving a fundamental astrophysics mystery: what

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