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First In-orbit Experience of TerraSAR-X Flight Dynamics Operations

Kahle, Ralph and Kazeminejad, Bobby and Kirschner, Michael and Yoon, Yoke and Kiehling, Reinhard and D'Amico, Simone (2007) First In-orbit Experience of TerraSAR-X Flight Dynamics Operations. 20th International Symposium on Space Flight Dynamics, 24.-28. Sep. 2007, Annapolis, USA.

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Abstract

TerraSAR-X is an advanced synthetic aperture radar satellite system for scientific and commercial applications that is realized in a public-private partnership between the German Aerospace Center (DLR) and the Astrium GmbH. TerraSAR-X was launched at June 15, 2007 on top of a Russian DNEPR-1 rocket into a 514 km sun-synchronous dusk-dawn orbit with an 11-day repeat cycle and will be operated for a period of at least 5 years during which it will provide high resolution SAR-data in the X-band. Due to the objectives of the interferometric campaigns the satellite has to comply to tight orbit control requirements, which are formulated in the form of a 250 m toroidal tube around a pre-flight determined reference trajectory. The acquisition of the reference orbit was one of the main and key activities during the Launch and Early Orbit Phase (LEOP) and had to compensate for both injection errors and spacecraft safe mode attitude control thruster activities. The paper summarizes the activities of GSOC flight dynamics team during both LEOP and early Commissioning Phase, where the main tasks have been 1) the first-acquisition support via angle-tracking and GPS-based orbit determination, 2) maneuver planning for target orbit acquisition and maintenance, and 3) precise orbit and attitude determination for SAR processing support. Furthermore, a presentation on the achieved results and encountered problems will be addressed.

Item URL in elib:https://elib.dlr.de/70098/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:First In-orbit Experience of TerraSAR-X Flight Dynamics Operations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kahle, Ralphralph.kahle (at) dlr.deUNSPECIFIED
Kazeminejad, BobbyUNSPECIFIEDUNSPECIFIED
Kirschner, MichaelUNSPECIFIEDUNSPECIFIED
Yoon, YokeUNSPECIFIEDUNSPECIFIED
Kiehling, ReinhardUNSPECIFIEDUNSPECIFIED
D'Amico, SimoneUNSPECIFIEDUNSPECIFIED
Date:September 2007
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:TerraSAR-X orbit acquisition; Flight Dynamics operations
Event Title:20th International Symposium on Space Flight Dynamics
Event Location:Annapolis, USA
Event Type:international Conference
Event Dates:24.-28. Sep. 2007
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:Space Operations and Astronaut Training > GSOC-German Space Operations Center
Deposited By: Kahle, Dr.-Ing. Ralph
Deposited On:27 Jun 2011 11:17
Last Modified:31 Jul 2019 19:32

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