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GPS Performance for GEOs and HEOs - The Equator-S Spacecraft Mission

Enderle, W. and Schmidhuber, Michael and Gill, E. and Montenbruck, O. and Braun, A. and Eissfeller, B. and Balbach, O. and Lemke, N. (1998) GPS Performance for GEOs and HEOs - The Equator-S Spacecraft Mission. American Astonautical Society. International Symposium on Space Flight Dynamics, Greenbelt, Maryland, May 11-15, 1998.

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The successfully usage of spaceborne GPS receivers for orbit- and attitude determination has in the past mainly been applied for spacecraft in near-circular Low Earth Orbits (LEO), e.g. TOPEX/POSEIDON, RADCAL. However, no experience exists of using GPS signals for Spacecraft navigation in altitudes above the GPS (20.000 km), such as the Geostationary Orbit (GTO). In this context, EQUATOR-S with it`s highly ellipitcal orbit offers a unique possibility in order to increases significantly the experience concerning GPS visibility, signal reception and GPS based navigation. The application of GPS based spacecraft navigation in GEO`s and GEO`s will bring advantages in many aspects. Besides orbit/attitude determination, GPS offers a potential for increasing command capabilities and decreasing ground station support. This will lead to a reduction of mission cost especially for LEOP phase of geostationary satellites. This paper describes first experiences in operating a GPS receiver in a highly elliptical orbit and presents first results of GPS visibilty and signal reception conditions within this orbit.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2000, monograph_id=AAS 98-324,
Title:GPS Performance for GEOs and HEOs - The Equator-S Spacecraft Mission
AuthorsInstitution or Email of Authors
Schmidhuber, MichaelUNSPECIFIED
Montenbruck, O.UNSPECIFIED
Eissfeller, B.IfEN, München
Balbach, O.IfEN, München
Lemke, N.Kayser-Threde GmbH, München
Page Range:pp. 315-327
Astronautical Society by Univelt, Incorporated, P. O. Box 28130, San Diego, California 92198, UNSPECIFIED
Publisher:American Astonautical Society
Keywords:GPS, Equator-S, Geostationary
Event Title:International Symposium on Space Flight Dynamics, Greenbelt, Maryland, May 11-15, 1998
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W SY - Technik für Raumfahrtsysteme
DLR - Research area:Space
DLR - Program:W SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Hauptabteilung Raumflugbetrieb und Astronautenausbildung
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 17:14

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