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NEOTωIST - An Asteroid Impactor Mission Featuring Sub-spacecraft for Enhanced Mission Capability

Engel, Kilian und Pugliatti, Mattia und Drube, Line und Cano, J. L. und Eggl, S. und Hestroffer, Daniel und Falke, Albert und Johann, Ulrich und Harris, Alan (2016) NEOTωIST - An Asteroid Impactor Mission Featuring Sub-spacecraft for Enhanced Mission Capability. 67th International Astronautical Congress (IAC), 26-30 September 2016., Guadalajara, Mexico.

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Offizielle URL: https://iafastro.directory/iac/paper/id/34163/summary/

Kurzfassung

Near Earth Object (NEO) deflection for the purpose of planetary defense has become increasingly recognized as a valid and valuable endeavour. NEOTωIST stands for Near-Earth Object Transfer of angular momentum (ω) Spin Test. This describes a demonstration mission intended to develop the capabilities required to execute an effective kinetic impactor NEO deflection mission. The chosen measurement technique and employment of small sub-spacecraft for observation purposes represent a novel approach to achieving the main goals of such a demonstration mission. The approach promises comparatively low cost and features capabilities that are unique and valuable for an operational deflection mission. Most standard deflection demonstration missions propose to quantify momentum transfer from the impactor spacecraft to the target object by measuring a change in its heliocentric orbit. The change is typically so small that it must be performed via radio-science from a second observer spacecraft which rendezvous with the NEO prior to impact. In our case the NEO is struck off-center which changes its spin rate. This rate change, which can be measured from Earth via light curve measurements, allows quantification of the transferred momentum. Using this measurement method the need for an observer spacecraft for the purpose of NEO orbit measurement is eliminated. The second function of the observer spacecraft is the close-up observation of the impact event for improvement of impact effectiveness modelling. The NEOTωIST mission achieves this observation by deploying several small sub-spacecraft from the main impactor spacecraft shortly before impact. These sub-spacecraft allow observation of the impact event from multiple vantage points some of which are unique because their destruction is accepted. At least one sub-spacecraft trajectory is planned such that survival is guaranteed, which enables it to receive observation data from the other spacecraft for delayed transmission to Earth. We present the overall mission concept as well as preliminary design work on the key technical challenges, in particular those associated with the highly dynamic operation of the small sub-spacecraft that are a key feature of the NEOTωIST mission.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:NEOTωIST - An Asteroid Impactor Mission Featuring Sub-spacecraft for Enhanced Mission Capability
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID
Engel, Kilianairbus d&s, friedrichshafen, germanyNICHT SPEZIFIZIERT
Pugliatti, MattiaDepartment of Aerospace Engineering, Delft University of TechnologyNICHT SPEZIFIZIERT
Drube, LineLine.Drube@dlr.dehttp://orcid.org/0000-0003-2486-8894
Cano, J. L.juan-luis.cano@deimos-space.comNICHT SPEZIFIZIERT
Eggl, S.imcce-observatoire de paris, 75014 paris, franceNICHT SPEZIFIZIERT
Hestroffer, Danielobservatoire de paris, franceNICHT SPEZIFIZIERT
Falke, Albertairbus defence and space, friedrichshafen, germanyNICHT SPEZIFIZIERT
Johann, Ulrichastrium friedrichshafenNICHT SPEZIFIZIERT
Harris, AlanAlan.Harris@dlr.dehttp://orcid.org/0000-0001-8548-8268
Datum:2016
Referierte Publikation:Nein
In Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:NEO, deflection, Kinetic Impactor, planetary defence, sub-spacecraft, small satellite
Veranstaltungstitel:67th International Astronautical Congress (IAC)
Veranstaltungsort:Guadalajara, Mexico
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:26-30 September 2016.
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erforschung des Weltraums
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Exploration des Sonnensystems
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Planetenforschung > Leitungsbereich PF
Hinterlegt von: Drube, Line
Hinterlegt am:30 Nov 2016 08:08
Letzte Änderung:26 Apr 2017 12:33

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