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How we beat 2019 PDC to NYC by 2 years, within 2 years, 2 years ago

Ceriotti, Matteo und Seefeldt, Patric und Kesseler, Lars und Viavattene, Giulia und Moore, Iain und Peloni, Alessandro und McInnes, Colin und Hillebrandt, Martin und Zander, Martin E. und Grundmann, Jan Thimo und Lange, Caroline (2021) How we beat 2019 PDC to NYC by 2 years, within 2 years, 2 years ago. iaaspace.org. 7th IAA Planetary Defense Conference - PDC 2021, 2021-04-26 - 2021-04-30, Wien, Österreich (virtuell).

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Offizielle URL: https://iaaspace.org/event/7th-iaa-planetary-defense-conference-2021/

Kurzfassung

For the Planetary Defense Conference Exercise 2019, we set out to find ways to obtain the earliest possible characterization of the incoming (fictitious!) asteroid, 2019 PDC. After a partially successful deflection, a 'small' fragment was still bound for impact. The location was only known two weeks before impact - the time left for the evacuation of the larger New York City metropolitan region. With experience in Near-Earth Object (NEO) exploration mission design, solar sail and solar-electric propulsion (SEP) technology for small spacecraft, agile responsive design and integration, and from previous PDC Exercises, the importance of earliest possible information on impact location and energy was obvious. NEO in-situ exploration can provide invaluable information not just for deflection actions but also for planetary science and resource utilization. This is only possible with space missions closely approaching the asteroid. Expecting a solar sail mission flying in the 2020s could be re-directed, a unique feature of solar sailing, we searched for multiple rendezvous missions at initial sail technology characteristic accelerations of =<0.10 mm/s². We found numerous options of up to three NEO encounters in the launch window 2019-2027 but none could divert to 2019 PDC in time. In addition, we explored very steerable and throttleable low-thrust solar-electric propulsion (SEP) rendezvous to a particular group of NEOs, the Taurid swarm which was expected to become observable in the summer of 2019, with a possible impact threat in the early 2030s. An acceleration of 0.23 mm/s² would suffice for a rendezvous in ~2000 days. Shorter transfers are available at higher acceleration. Finally, we found two low-thrust options to 2019 PDC, one sail and one SEP, both arriving about 2 years before impact at the fragment, SEP requiring 0.3 mm/s² acceleration - about the performance limit we estimate for "now-term" technology. They require launch within less than 2 years of discovery of 2019 PDC, which we consider feasible provided that the basic technology has been flown. This is the case for SEP but not yet for solar sails of which only a few demonstrators were flown. SEP has become a mainstream propulsion method. Soon, the majority of all spacecraft ever launched will be small SEP spacecraft. DLR GOSSAMER solar sails use a strategy for controlled deployment of large membranes based on a combination of zig-zag folding and coiling of triangular sail segments spanned between crossed booms, all unfolded by dedicated deployment units. To reduce the complexity of this system for fast-tracked initial solar sail flights an adaptation of that deployment strategy was developed that allows deployment actuation from a central bus. The mass of such a sailcraft will be slightly increased but its performance is still reasonable for first solar sail missions. This design was breadboarded to demonstrate feasibility of the deployment strategy and its performance analyzed. On this background we developed two preliminary spacecraft designs by taking SEP off-the-shelf and getting solar sails into space soonest. We present how we beat 2019 PDC to NYC by >2 years, within <2 years, 2 years ago - and didn't tell anyone.

elib-URL des Eintrags:https://elib.dlr.de/142224/
Dokumentart:Konferenzbeitrag (Vortrag, Poster)
Titel:How we beat 2019 PDC to NYC by 2 years, within 2 years, 2 years ago
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Ceriotti, MatteoUniversity of Glasgow, Glasgow, Scotland, United Kingdomhttps://orcid.org/0000-0001-6819-7178NICHT SPEZIFIZIERT
Seefeldt, PatricPatric.Seefeldt (at) dlr.dehttps://orcid.org/0000-0002-2067-9458NICHT SPEZIFIZIERT
Kesseler, LarsLevity Space SystemsNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Viavattene, GiuliaUniversity of Glasgow, Glasgow, Scotland, United KingdomNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Moore, IainUniversity of Glasgow, Glasgow, Scotland, United KingdomNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Peloni, AlessandroUniversity of Glasgow, Glasgow, Scotland, United Kingdomhttps://orcid.org/0000-0002-1903-9816NICHT SPEZIFIZIERT
McInnes, ColinUniversity of Strathclyde, Glasgow, United KingdomNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Hillebrandt, MartinMartin.Hillebrandt (at) dlr.dehttps://orcid.org/0000-0003-1248-9504NICHT SPEZIFIZIERT
Zander, Martin E.Martin.Zander (at) dlr.dehttps://orcid.org/0000-0001-5972-2938NICHT SPEZIFIZIERT
Grundmann, Jan ThimoJan.Grundmann (at) dlr.dehttps://orcid.org/0000-0002-8809-0981NICHT SPEZIFIZIERT
Lange, CarolineCaroline.Lange (at) dlr.dehttps://orcid.org/0000-0002-1709-3667NICHT SPEZIFIZIERT
Datum:26 April 2021
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iDORCID Put Code
Ailor, William HThe Aerospace CorporationNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Barbee, BrentNASA/Goddard Space Flight Center & The University of MarylandNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Drolshagen, GerhardUniversity Oldenburg, GermanyNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Karl, AlexIAF TC on NEOsNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Melamed, NahumThe Aerospace CorporationNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Cheng, A.F.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USANICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Tantardini, MarcoConsultant, former Space Policy Officer in the Office of the Italian Prime MinisterNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Vardaxis, GeorgeThe Aerospace CorporationNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Verlag:iaaspace.org
Status:veröffentlicht
Stichwörter:solar sail, Near-Earth Object, Membrane deployment strategies, Solar-Electric propulsion, small spacecraft
Veranstaltungstitel:7th IAA Planetary Defense Conference - PDC 2021
Veranstaltungsort:Wien, Österreich (virtuell)
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:26 April 2021
Veranstaltungsende:30 April 2021
Veranstalter :IAA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Technik für Raumfahrtsysteme
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R SY - Technik für Raumfahrtsysteme
DLR - Teilgebiet (Projekt, Vorhaben):R - GoSolAr (Gossamer Solar Array), R - Requirements and Verification Interchange in MBSE, R - Projekt Mascot (Bus), R - Projekt Mascot (Rob.), R - Projekt MASCOT - Science
Standort: Bremen
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Funktionsleichtbau
Institut für Raumfahrtsysteme > Mechanik und Thermalsysteme
Institut für Raumfahrtsysteme > Systementwicklung und Projektbüro
Hinterlegt von: Grundmann, Jan Thimo
Hinterlegt am:11 Mai 2021 08:36
Letzte Änderung:24 Apr 2024 20:42

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