Arbinger, Christian and D'Amico, Simone and Eineder, Michael (2004) Precise Ground-In-the-Loop Orbit Control for Low Earth Observation Satellites. In: Proceedings of the 18th International Symposium on Space Flight Dynamics. ESA. 18th International Symposium on Space Flight Dynamics, 2004-10-11 - 2004-10-15, Munich, Germany. ISBN 92-9092-859-X. ISSN 0379-6566.
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Abstract
The growing interest in earth observation missions equipped with space-borne optical and synthetic aperture radar (SAR) sensors drives the accuracy requirements with respect to orbit determination and control. Especially SAR interferometry with its capability to resolve the velocity of on-ground objects (e.g. for traffic monitoring, ocean currents and glacier monitoring) and to determine highly precise digital elevation models is of significant interest for scientific applications. These goals may be achieved using along-track and repeat-pass interferometry with a satellite formation, based on the precise orbit control of one satellite with respect to the osculating trajectory of the second satellite. Such a control concept will be realized by the German TerraSAR-X mission, with an expected launch in 2006, using a virtual formation, where a single satellite will be controlled in a tight manner with respect to a predefined osculating reference trajectory. This is very challenging, since common orbit disturbances, like for close twin formations, do not cancel out in this scenario. The predefined trajectory in the TerraSAR-X case could also be the orbit of a second satellite. The paper describes the generation of such a virtual reference orbit, discusses the ground-in-the-loop control concept and presents results from a long-term simulation.
Item URL in elib: | https://elib.dlr.de/58067/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||
Title: | Precise Ground-In-the-Loop Orbit Control for Low Earth Observation Satellites | ||||||||||||||||
Authors: |
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Date: | 11 October 2004 | ||||||||||||||||
Journal or Publication Title: | Proceedings of the 18th International Symposium on Space Flight Dynamics | ||||||||||||||||
Refereed publication: | No | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Publisher: | ESA | ||||||||||||||||
ISSN: | 0379-6566 | ||||||||||||||||
ISBN: | 92-9092-859-X | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | Ground-in-the-loop orbit control, orbit prediction, orbit determination, flight dynamics, formation flying, SAR, GPS, LEO | ||||||||||||||||
Event Title: | 18th International Symposium on Space Flight Dynamics | ||||||||||||||||
Event Location: | Munich, Germany | ||||||||||||||||
Event Type: | international Conference | ||||||||||||||||
Event Start Date: | 11 October 2004 | ||||||||||||||||
Event End Date: | 15 October 2004 | ||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||||||
HGF - Program: | Space (old) | ||||||||||||||||
HGF - Program Themes: | W EO - Erdbeobachtung | ||||||||||||||||
DLR - Research area: | Space | ||||||||||||||||
DLR - Program: | W EO - Erdbeobachtung | ||||||||||||||||
DLR - Research theme (Project): | W - Projekt TerraSAR-X Missionsbetrieb (old) | ||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||
Institutes and Institutions: | Remote Sensing Technology Institute > SAR Signal Processing Space Operations and Astronaut Training > GSOC-German Space Operations Center | ||||||||||||||||
Deposited By: | D'Amico, Simone | ||||||||||||||||
Deposited On: | 05 Mar 2009 | ||||||||||||||||
Last Modified: | 24 Apr 2024 19:22 |
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