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Collision Risk Assessment and Mitigation Strategy for the GSOC GEO Satellites

Aida, Saika and Kirschner, Michael and Meissner, Florian (2015) Collision Risk Assessment and Mitigation Strategy for the GSOC GEO Satellites. 24th International Symposium on Space Flight Dynamics, 2014, Laurel, Maryland, USA.

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Abstract

The collision avoidance strategy for geostationary satellites is discussed in the paper. The possible encountering objects were first analyzed from the past events and also from the object population in the geostationary ring. Compared with the conjunctions in LEO, an in-track maneuver for the collision avoidance has to be planned more carefully, because the satellites have to be kept inside the control box. To mitigate the high collision risk while keeping the satellites inside the box, different maneuver strategies were analyzed. Depending on the avoidance maneuver size as well as the drift time, an appropriate E/W maneuver strategy had to be applied. Another strategy using the N/S maneuver allows performing larger thrusting without violating the control box; however the achieved separation varied according to the orbital plane angle and the close approach epoch. The strategies were finally applied to high risk conjunctions in the past. For all cases, the conjunctions could be mitigated and the control requirements were satisfied.

Item URL in elib:https://elib.dlr.de/96163/
Document Type:Conference or Workshop Item (Speech)
Title:Collision Risk Assessment and Mitigation Strategy for the GSOC GEO Satellites
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Aida, Saikasaika.aida (at) dlr.deUNSPECIFIED
Kirschner, Michaelmichael.kirschner (at) dlr.deUNSPECIFIED
Meissner, Florianflorian.meissner (at) dlr.deUNSPECIFIED
Date:4 May 2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Collision avoidance, Geostationary satellite, Station keeping
Event Title:24th International Symposium on Space Flight Dynamics, 2014
Event Location:Laurel, Maryland, USA
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Project Space Debris
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Space Flight Technology
Deposited By: Aida, Saika
Deposited On:04 May 2015 16:35
Last Modified:31 Jul 2019 19:52

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