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Visibility Analysis of the GPS Space Segment for the BIRD Satellite Mission

Gill, E. (1999) Visibility Analysis of the GPS Space Segment for the BIRD Satellite Mission. DLR-Interner Bericht. TN 99-04, 1 S.

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Abstract

To assure that the BIRD GEM-S receiver can track a sufficient number of GPS satellites throughout its operations, the visibility conditions have been analyzed for various antenna configurations and spacecraft orientations. As a result, GPS operations will primarily be conducted in the Sun Pointing mode. Considering the requirements, that more than 4 satellites shall be visible durch 85 % of the receiver operations time and that the GDOP (geometric dilution of precision) shall be less than 5 (50 th percentile) we conclude, that a rotation of the spacecraft about its zaxis with a period of one orbital revolution is mandatory. Potential conflicts with the radiator operations have to be resolved.

Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=2000,
Title:Visibility Analysis of the GPS Space Segment for the BIRD Satellite Mission
Authors:
AuthorsInstitution or Email of Authors
Gill, E.UNSPECIFIED
Date:1999
Number of Pages:1
Status:Published
Keywords:GPS, Visibility Analysis, BIRD Mission
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 -- 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 17:12

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