Transcript minutes

International
Academy of
Astronautics
International Academy of Astronautics
IAA Space Debris Committee
Paris, March 22nd, 2016
International
Academy of
Astronautics
Agenda
1. IAC
1.1. IAA Space Debris Committee
1.2. Lessons learned from Jerusalem 2015
1.3. Status of Space Debris Symposium for Guadalajara 2016
1.4. Preparation of Space Debris Symposium for Adelaide 2017
2. Exchanges
2.1. Past events: workshops, conferences, congresses, …
2.2. Ongoing
2.3. On the Agenda
2.4. New achievements
2.5. Round table – Open discussion
3. IAA SG 5.14
Situation Report
 Meeting restricted to Study Group members
International
Academy of
Astronautics
1.1. IAA Space Debris Committee
General frame:
 Officially created within IAA in 2012
- Independent Committee
- Permanent Committee
- Attachment to Commission V questionable
 Actions of the Committee:
- Position Paper on Orbital Debris in 1993, revised in 2000
- Position Paper SG 5.1 on Space Debris Mitigation in 2006
- Position Paper SG 5.5 on Space Debris Remediation in 2013
- Participation to SG 5.10 on Orbital Debris Removal: Policy, Legal, Political and
Economic considerations
- Situation Report Paper SG 5.14 ongoing, to be discussed today
International
Academy of
Astronautics
1.1. IAA Space Debris Committee
Terms of Reference (recall):
Scope
Coordination of all activities related to Space Debris within the Academy
•Organization of the IAA Symposium on Space Debris A6 for the IAC, proposals for Keynote
Lectures within the A6 Symposium, or Highlight Lectures in the more general IAC frame,
•Organization of any stand-alone conference on Space Debris on behalf the Academy,
•Coordination of the Academy sponsoring, participation and contribution to selected
conferences dedicated to Space Debris, such as for instance the ESA Conference on Space
Debris in Darmstadt,
•Coordination of the Space Debris contribution in conferences not dedicated to Space Debris,
but where some sessions may be devoted to the topic, sponsored by the Academy,
•Dissemination of information among the members of the Committee, mainly during regular
meetings taking place twice a year, before the IAC and during the IAA March meetings in Paris.
International
Academy of
Astronautics
1.1. IAA Space Debris Committee
Membership:
No need to be member of IAA !
- Members of the IAA A6 Symposium Program Committee (chairs & rapporteurs)
- Members of the Program Committee of other IAA sponsored conferences with Space Debris
concerns
- Members of Space Debris related working groups (IADC, UNCOPUOS, COSPAR, ISO …)
- Academics, Labs, Universities, Industrials… working on the topic
However, it is requested to be somehow “active”:
- Participation to the meetings
- Debriefing of activities during the meetings
- Cross information with other members
- Contribution to studies and reports
Two meetings per year:
- One just before each year’s IAC
 Includes the status of the sessions, workshops, round tables… of the week
- One just before or during the IAC March Meeting in Paris
 Includes the pre-selection of the abstracts for the following IAC
International
Academy of
Astronautics
1.1. IAA Space Debris Committee
Official membership:
Co-Chair: Bonnal Christophe
Co-Chair: Klinkrad Heiner
Co-Chair: Liou Jer-Chyi
Members:
Agapov Vladimir
Ailor William H
Akahoshi Yasuhiro
Alby Fernand
Anselmo Luciano
Anz-Meador Phillip
Berend Nicolas
Brachet Gerard
Cazaux Christian
Christiansen Eric L
Crowther Richard
DiPentino Frank
Dolado-Perez Juan-Carlos
Faucher Pascal
Finkleman David
Flury Walter
Francesconi Alessandro
Ganeshan A S
Hanada Toshiya
Kelso T. S
Kibe Seishiro
Kouprianov Vladimir
Krag Holger
Krisko Paula H
Masson-Zwaan Tanja
Matney Mark
McKnight Darren S
Meshcheryakov Sergei A
Oltrogge Daniel L.
Pardini Carmen
Piergentili Fabrizio
Schaefer Frank
Schildknecht Thomas
Stokes Hedley
van Breukelen Eddy D
Wiedemann Carsten
Yakovlev Michael
Yasaka Tetsuo
New on-going
(but agreed upon)
Fitz-Coy Norman
Flohrer Tim
Lewis Hugh
Mathieu Charlotte
Metz Manuel
Sorge Marlon
Spencer David
Fuentes Nathalie
 Not yet formal members
Proposed
Fuentes Nathalie
To be removed
44 + 7 members
Attendance list for today: see Appendix 1.
Kouprianov Vladimir
van Breukelen Eddy D
International
Academy of
Astronautics
1.2. Feedback from Jerusalem 2015
STATISTICS
IAC 2015 - Jerusalem
Number of abstracts submitted
2669
Number of papers selected
2130
Number of papers presented
1149
Total number of attendees
2133
Number of countries represented
62
International
Academy of
Astronautics
1.2. Feedback from Jerusalem 2015
Sessions
2012
2013
2014
2015
Naples
Beijing
Toronto
Jerusalem
Number of abstracts
submitted
3212
3657
3584
2669
Number of papers selected
2184
2320
2392
2130
Number of papers
confirmed
1600
1640
1558
1448
Number of papers presented
1374
1304
1256
1149
Ratio Paper Not Presented/
papers selected
37%
43%
47%
46%
- Nearly half of the selected papers are not presented!
- Special attention to this phenomenon within IPC Steering Group
International
Academy of
Astronautics
1.2. Feedback from Jerusalem 2015
#1 Attendance, Min, Max, Avg
#2 Number of papers presented
International
Academy of
Astronautics
1.2. Feedback from Jerusalem 2015
Symposium attendance (average)
450
400
350
Attendance
300
250
200
150
100
50
-
A1
A2
A3
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
C1
C2
C3
C4
D1
D2
D3
D4
D5
D6
E1
E2
E3
E4
E5
E6
E7
International
Academy of
Astronautics
1.2. Feedback from Jerusalem 2015
Abstract Rejection Rate
60%
50%
Ratio
40%
30%
20%
10%
International
Academy of
Astronautics
1.2. Feedback from Jerusalem 2015
Statistics:
- Rather well equilibrated among sessions
- HVI - Protection A6.3 a bit weaker as usual, due to hyper-specialization
- A6.2: 11 papers presented may be a bit to high but no withdrawal…
- A6.6: #3 highest “maximal attendance” and #1 highest “minimal attendace” of the congress
- Average of 57 participants, maximal, per session (not inc A6.10): good, but less than Toronto (73).
- Globally 3 papers out of 4 presented: good figure at IAC level, but could be improved
International
Academy of
Astronautics
1.3. Guadalajara 2016
Number of IAC abstracts since 2008
3584
4000
3180
3500
3000
2500
3675
271
2442
2428
2616
2483
2000
2095
1500
1000
500
0
2008
2009
2010
2011
2012
2013
2014
2716 abstracts = Slightly less than the average of the past 8 years
2015
2016
International
Academy of
Astronautics
1.3. Guadalajara 2016
Rate of arrival of abstracts (for fun…)
4000
3500
3000
2500
IAC-13 sum
2000
IAC-14 sum
IAC-15 sum
IAC-16 sum
1500
1000
500
International
Academy of
Astronautics
1.3. Guadalajara 2016
Abstracts per symposium
250
200
150
100
50
0
5th best (but used to be better…)
International
Academy of
Astronautics
1.3. Guadalajara 2016
Number of abstracts, Space Debris Symposium, since 2008
250
200
150
100
50
0
Glasgow
Daejeon
Praha
CapeTown
Naples
Beijing
Toronto
Jerusalem
Guadalajara
Status before the selection, IPC March 24th meeting: 155 abstracts
International
Academy of
Astronautics
1.3. Guadalajara 2016
Number of Oral sessions, Space Debris Symposium, since 2000
+ Interactive Presentation session,
-
Back to 9 Oral + IP this year: maximal number without overlaping
International
Academy of
Astronautics
1.3. Space Debris Symposium Guadalajara 201
A few inconsistencies between MoM of Jerusalem, IAF web site, and IAC Call for Papers
A6: Space Debris Symposium
Liou – Bonnal
The Symposium will address the complete spectrum of technical issues of space debris:
measurements, modelling, risk assessment in space and on the ground, reentry,
hypervelocity impacts and protection, mitigation and standards, and Space Surveillance.
A6.1: Measurements: Oltrogge - Schildknecht – Agapov
This session will address advanced ground and space-based measurement techniques, relating processing
methods, and results of space debris characterization.
A6.2: Modelling and Risk Analysis: Pardini – Sorge – Bastida-Virgili
This session will address the characterization of the current and future debris population and methods for inorbit and on-ground risk assessments. The in-orbit analysis will cover collision risk estimates based on
statistical population models and deterministic catalogues, and active avoidance.
A6.3: Hypervelocity Impacts and Protection: Fitz-Coy – Schäfer – XXX
The session will address passive protection, shielding and damage predictions. Shielding aspects will be
supported by experimental and computational results of HVI tests. Use of HVI techniques for debris
mitigation.
A6.4: Mitigation and Standards: Krag – Cazaux – Yasaka
This session will focus on the definition and implementation of debris prevention and reduction measures and
International
Academy of
Astronautics
1.3. Space Debris Symposium Guadalajara 201
A6.5: Space Debris Removal Issues:
Piergentili – Kibe – Santoni
A6.6: Space Debris Removal Concepts:
Berend – Innocenti –Haussmann
This session will address active removal techniques “ground and space based”, review potential solutions an
Identify implementation difficulties.
This session will address active removal techniques “ground and space based”, review potential solutions an
identify implementation difficulties.
A6.7: Operations in Space Debris Environment, Situational Awareness:
Kelso – Dolado-Perez – Wiedemann
This session will address the multiple aspects associated to safe operations in Space dealing with Space
Debris, including operational observations, orbit determination, catalogue build-up and maintenance, da
aggregation from different sources, relevant data exchanges standards and conjunction analyses.
A6.8 (joint with Space Security Committee): Political, Legal, Institutional and
Economic Aspects of Space Debris Mitigation and Removal
Plattard – Spencer – Soucek – Finkleman
This session will deal with the non-technical aspect of space debris mitigation and removal. Political, legal an
institutional aspects includes role of IADC and UNCOPUOS and other multilateral bodies. Economic
issues including insurance, financial incentives and funding for space debris mitigation and removal. T
role of international cooperation in addressing these issues will be considered
A6.9: Orbit Determination and Propagation
Jah – Klinkrad – XXX
This session will address aspects of space debris orbit determination related to assessment of raw and deriv
data accuracy, optical measurements processing and modelling and risk analysis of space debris
International
Academy of
Astronautics
1.3. Space Debris Symposium Guadalajara 201
A6: Space Debris Symposium Number of Abstracts
Total number of abstracts: 155
A6.1: Measurements: 19
A6.2: Modelling and Risk Analysis: 22
A6.3: Hypervelocity Impacts and Protection: 8
A6.4: Mitigation and Standards: 9
A6.5: Space Debris Removal Issues: 18
A6.6: Space Debris Removal Concepts: 30
A6.7: Operations in Space Debris Environment, Situational Awareness: 15
A6.8 (joint with Space Security Committee): Political, Legal, Institutional and Econom
Aspects of Space Debris Mitigation and Removal: 16
A6.9: Orbit Determination and Propagation: 12
A6.P: Posters: 6
International
Academy of
Astronautics
1.3. Space Debris Symposium Guadalajara 201
Recall of a few basic rules


Avoid the No-shows from Jerusalem:

A6.6: Alaa Hussein, Xin Qu

A6.8: Olga Stelmakh
Be cautious with withdrawn; try to make sure they will come:

A6.1: Wei Niu

A6.3: Japneet Singh

A6.4: Michèle Lavagna, Emma Kerr, Shraddha Gupta

A6.5: Braven Leung, Mariella Graziano

A6.6: Alessandro Chiesa, Nevo Taaseh

A6.7: Noelia Sanchez Ortiz

A6.8: Annamaria Nassisi, Susumu Yoshitomi
International
Academy of
Astronautics
1.3. Space Debris Symposium Guadalajara 201
Recall of a few basic rules
 Selection process:
- Check completeness of web site if you started preselection
- Check equilibrium of your session
- Not to many Americans, Europeans or Chinese
- No duplication of subject, at least within one given session
- Beware the “risky papers” or choose one more than recommended
- Avoid “political” papers or very general roadmaps
- Interactive Presentations: as many as you want, provided they are good
- Dedicated zone
- Competition for best Interactive Presentation Award
- Be careful to follow the request of an author: O, IP, or open
- Beware: 4 manuscripts are Interactive Presentation, although not in IP session
 To be transferred to IP session (2 from A6.1, 2 from A6.3)
- Numerous students (54): keep a good equilibrium and select only if promising
International
Academy of
Astronautics
1.3. Space Debris Symposium Guadalajara 201
Recall of a few basic rules: how to fill the table Thursday morning
- Normally 9 papers per session, but 10 is recommended considering one or more “risky”
papers
- In case of “merger”, identify the “prime”
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1.3. Space Debris Symposium Guadalajara 201
International
Academy of
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1.3. Space Debris Symposium Guadalajara 201
International
Academy of
Astronautics
1.3. Space Debris Symposium Guadalajara 201
Plenaries:
 Selected list (out of 29 proposals):
PE HoA
PE HC
PE 2
PE 4
Head of Agencies
Host country
Realizing Mars Sample Return through Human and Robotic Collaboration
Projection and Stability of the Orbital Debris Environment in the Light of Planned Mega-Constellation
Deployments
PE 7
PE 13
Living For a Whole Year on ISS: Early Results and Lessons Learned. #YearInSpace
Space and Climate : How space agencies will contribute to the implementation and follow-up of the
Paris agreement during COP 21 ?
PE 14
Innovative Solutions for Making Space Accessible and Affordable
Highlight Lectures:
 Selected list not yet frozen – IPC SG meeting tomorrow
-
Could include: Pluto, Saturn, New Shepard
Late Breaking News :
-
SpaceX
 Others will be decided later
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Academy of
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1.3. Space Debris Symposium Guadalajara 201
Plenary Event PE 4: Projection and Stability of the Orbital Debris Environment i
Light of Planned Mega-Constellation Deployments
 Prepared by Heiner and Jer-Chyi
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1.3. Space Debris Symposium Guadalajara 201
Plenary Event PE 4: Projection and Stability of the Orbital Debris Environment i
Light of Planned Mega-Constellation Deployments
 Prepared by Heiner and Jer-Chyi
International
Academy of
Astronautics
1.4. Space Debris Symposium Adelaide 2017
International
Academy of
Astronautics
1.4. Space Debris Symposium Adelaide 2017
A6: Space Debris Symposium
Liou – Bonnal
The Symposium will address the complete spectrum of technical issues of space debris:
measurements, modelling, risk assessment in space and on the ground, reentry,
hypervelocity impacts and protection, mitigation and standards, and Space Surveillance.
A6.1: Measurements: DiPentino - Schildknecht – Cowardin
This session will address advanced ground and space-based measurement techniques, relating processing
methods, and results of space debris characterization.
A6.2: Modelling and Risk Analysis: Pardini – Oltrogge – Sorge
This session will address the characterization of the current and future debris population and methods for in
orbit and on-ground risk assessments. The in-orbit analysis will cover collision risk estimates based o
statistical population models and deterministic catalogues, and active avoidance.
A6.3: Hypervelocity Impacts and Protection: Fitz-Coy – Schäfer – Francesconi
The session will address passive protection, shielding and damage predictions. Shielding aspects will be
supported by experimental and computational results of HVI tests. Use of HVI techniques for debris
mitigation.
A6.4: Mitigation and Standards: Finkleman – Cazaux – Krag
This session will focus on the definition and implementation of debris prevention and reduction measures a
vehicle passive protection. The session will also address space debris mitigation guidelines and
standards that exist already or are in preparation at the national or international level.
International
Academy of
Astronautics
1.4. Space Debris Symposium Adelaide 2017
A6.5: Space Debris Removal Issues:
Piergentili – Santoni – Bastida-Virgili
A6.6: Space Debris Removal Concepts:
Berend – Innocenti – Haussmann
This session will address active removal techniques “ground and space based”, review potential solutions an
Identify implementation difficulties.
This session will address active removal techniques “ground and space based”, review potential solutions an
identify implementation difficulties.
A6.7: Operations in Space Debris Environment, Situational Awareness:
Kelso – Dolado-Perez – Wiedemann
This session will address the multiple aspects associated to safe operations in Space dealing with Space
Debris, including operational observations, orbit determination, catalogue build-up and maintenance, da
aggregation from different sources, relevant data exchanges standards and conjunction analyses.
A6.8 (joint with Space Security Committee): Political, Legal, Institutional and
Economic Aspects of Space Debris Mitigation and Removal
Plattard – McKnight – Soucek
This session will deal with the non-technical aspect of space debris mitigation and removal. Political, legal an
institutional aspects includes role of IADC and UNCOPUOS and other multilateral bodies. Economic
issues including insurance, financial incentives and funding for space debris mitigation and removal. T
role of international cooperation in addressing these issues will be considered
A6.9: Orbit Determination and Propagation
Jah – Klinkrad – Lewis
This session will address aspects of space debris orbit determination related to assessment of raw and deriv
data accuracy, optical measurements processing and modelling and risk analysis of space debris
International
Academy of
Astronautics
1.4. Space Debris Symposium Adelaide 2017
• Any ideas for Adelaide 2017?
-
Joint Session?
-
Could be interesting with B1 Earth Observation and/or B2 Space Communication and Navigation
-
Could be interesting with B4 Small Satellites, reviewing practices, identifying future trends =>
-
Could be discussed with D2 Space Transportation to have a good status of the situation, if operators
explain what they do…
-
Could be worth a session with E7 = IISL
• If we decide for such a joint session, Darren volunteers to start
discussions and prepare the ground
• Other ideas?
-
Keynote lecture at the beginning of one of our sessions in line with Host country (Australia a
Space Debris…)
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2.1. Past events
• 6th Workshop on End of Life
-
CNES-HQ, Paris, 28 January 2016
See presentation
• Reinvent Space Conference
-
9-13 November 2015, Oxford, UK
Small satellites, debris
Discussions on licensing by UK
Mining, NEO, …
International
Academy of
Astronautics
2.2. Ongoing
•
IAA studies
Two following pages, for information
•
SG 5.10 Orbital Debris Removal: Policy, Legal, Political and Economic
considerations
Dedicated meeting on Monday 21 March 2016
See following pages
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2.2. Ongoing
International
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Astronautics
2.2. Ongoing
International
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Astronautics
•
2.2. Ongoing
SG 5.10 Orbital Debris Removal: Policy, Legal, Political and
Economic considerations
International
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Astronautics
•
2.2. Ongoing
SG 5.10 Orbital Debris Removal: Policy, Legal, Political and
Economic considerations (ctd)
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Academy of
Astronautics
2.3. On the agenda
• 4th Workshop on Space Debris Modeling and Remediation
-
CNES-HQ, Paris, 6 – 8 June 2016
- Modeling, including uncertainties and specificities coming from small satellites and
constellations;
- High level actions, road-maps, associated to debris remediation;
- Remediation system studies, including those relative to small debris;
- Design of specific concepts;
- Associated technologies;
- GNC aspects, rendezvous sensors and algorithms, de-spin, control during de-boo
- Lasers;
- Economics, insurance, intellectual property;
- Policy, national security, international cooperation… aspects on aspects of debris
remediation.
-
Program Committee: ESA-HQ (Luisa Innocenti), ESA-ESOC (Holger Krag), DLR (Manuel Metz),
JAXA (Satomi Kawamoto), NASA-JSC (Jer-Chyi Liou), SWF (Brian Weeden),
Roscosmos, (Valeriy Trushlyakov), UK Space Agency (Richard Crowther) , CNSA (Li Ming),
and CNR-ISTI (Luciano Anselmo), in addition to 4 CNES, CNES-HQ (Pascal Faucher), CNES-Toulou
International
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•
8th IAASS
-
•
23rd April 2016
Cal Poly U in SLO
Some debris presentations
Small sats conference
-
•
Melbourne, Florida - USA, 18 – 20 May 2016
See following pages
Small sats workshop
-
•
2.3. On the agenda
Logan, Utah
http://www.smallsat.org/
Space Risk Forum
-
Dubai
-
Coordinated by Insuranceorldspaceriskforum.com
Www.worldspaceriskforum.com
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2.3. On the agenda
International
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2.3. On the agenda
International
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2.4. New achievements
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ISO TC20/SC14 ORBITAL DEBRIS MITIGATION STANDARDS
WG1 DESIGN
WG2 INTG &
TEST
Tests of smallscale satellites
(19683)
Notes
As of February 2015
1) Abbreviated titles used
2) Text colour code:
Green: IS published
Brown: FDIS stage
Red: DIS stage
Blue: CD stage
Black: WD stage
4) Items of ECCS high priority
underlined
5) Controversial items not
shown.
6) To be added: TR – SDM Design
and Opes Manual for LV
WG3
OPERATIONS
WG4 ENVIRON.
Disposal at GEO
(26872)
Disposal in LEO
(16164)
Estimating mass
remaining usable
propellant (23339)
WG5
MANAGEMEN
T
Process-Based
implementation of M/D
Env. Models (14200)
transfer to WG7
Earth atmosphere
density (14222)
Re-entry Risk Magment for unmanned S/C (27875)
Estimation of orbit lifetime (27852)
Orbit determination and estimation (11233)
Avoiding collisions with orbiting
objects (16158 TR)
WG6
MATERIALS
WG7
(ODWG)
Space Debris
Mitigation (24113)
SDM Design and
Operation Manual
for S/C (18146)
Test procedures for
S/C material ejecta
upon HVI (11227)
Survivability of unmanned
S/C against SD and MM
impacts (16126)
Disposal of Orbital Launch Stages (16699)
Prevention of Break-up of
of un-manned S/C (16127)
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2.4. New achievements
International
Academy of
Astronautics
•
Space Orbital object behavioral Sciences
-
•
2.5. Round table – Open discussion
See Appendix
Why Should We Estimate the Future Costs of Orbital Debris?
-
Discussion proposed by Joe Carroll: see Appendix
-
Business model for ADR – Preliminary ideas: See Appendix
•
Proposed Series of Orbital Debris Remediation Activities
•
Risks of atmospheric re-entries on aircraft
-
See Appendix
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Academy of
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3. IAA SG 5.14 Situation Report
Goal
Reference status of the Space Debris problematic, acting as an update of the IAA Position Papers 1993 and Revision fr
2001, taking into account the IAA Position Papers on Space Debris Mitigation (SG5.1) and on Space Debris Remediati
(SG5.5). Available elements from on-going SG5.10 devoted to Policy, Legal and Economic Issues in Orbital Debris
Removal will also be included.
Today: 132 pages, Completed at 99%
Progress in past six months:
• Good progress these last days!...
• Finalization of the paper ongoing
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Structure
3. IAA SG 5.14 Situation Report
Status before the meeting
Co-Editors:
Darren McKnight & Christophe Bonnal
Executive summary
Darren McKnight
3 pages
Table of contents
2 pages
1. Introduction, recall of scope and past studies:
Darren McKnight
3 pages
2. Present status:
Heiner Klinkrad
12 pages
3. Measurements:
Thomas Schildknecht & Vladimir Agapov
6 pages
4. Space surveillance:
Cazaux, Finkleman, Alby, Oltrogge
15 pages
5. Collision risks:
Cazaux, Finkleman, Alby, Oltrogge
4 pages
6. Reentering space objects:
Holger Krag & Marlon Sorge
13 pages
7. Future environment:
Paula Krisko & Juan-Carlos Dolado-Perez
16 pages
8. Debris mitigation:
Manuel Metz & J-C. Liou
11 pages
9. Remediation:
Darren McKnight & Seishiro Kibe
10 pages
10. Protection:
Frank Schäfer
12 pages
11. Legal:
Tanja Masson-Zwaan
9 pages
12. International aspects:
Charlotte Mathieu & MYS Prasad
6 pages
13. References & Standards:
Christophe Bonnal
7 pages
Appendixes
3 pages
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•
3. IAA SG 5.14 Situation Report
General remarks:
•
Thank you to all contributors, including last-minute… :o)
•
Current text includes reviews from Akira, Carmen, Hedley, Luciano
•
Choice is made to write 1,000 km, rather than 1 000 or 1,000km (Acta Astronautica style)
•
Choice is made to duplicate references throughout the chapters
•
All numerical data will have to be harmonized prior to publication (not done yet)
•
More generally, harmonization (figures, tables, references) will be done during polishing
•
We should add much more references; don’t hesitate to put your own!
•
For future revisions, we need inputs from other contributors (China, India, S-Korea, …)
•
Status report to IAA distributed, as requested, on Feb. 23rd; additional discussions in Commission
•
PDF version freely accessible on IAA web-site
•
Revision of the pdf version whenever considered adequate  “permanently” updated “living”
document, acting as Reference
•
•
Initial hard-copy publication agreed by CNES
Once the text is complete, Darren and Christophe will do polishing, then send to IAA for Peer