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On-orbit control system performance of the ROSAT spacecraft

Bollner, M. (1991) On-orbit control system performance of the ROSAT spacecraft. Acta Astronautica, Vol. 25, No. 8/9, pp. 487-495. Pergamon Press, Oxford, GreatBritain.

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Abstract

The on-orbit performance of the attitude control system of the ROSAT spacecraft is described. It is performing both precise pointing observations and scanning over the sky. The control system consists of high precision star trackers and gyros for attitude reference and reaction wheels for maneuvers. Since launch on 1 June 1990 first the checkout and calibration phase was performed, indicating that pointing accuracies <1 arc min, slew maneuver accuracies <4 arc min, and scan accuracies <13 arc min are achieved. These are, like all other performance values, well inside the specifications. Since 30 July, the sky survey is in progress without problems. The magnitude calibration of the star trackers and one type of anomaly detected during the survey are discussed additionally.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1991,
Title:On-orbit control system performance of the ROSAT spacecraft
Authors:
AuthorsInstitution or Email of Authors
Bollner, M.UNSPECIFIED
Date:1991
Journal or Publication Title:Acta Astronautica, Vol. 25, No. 8/9
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 487-495
Publisher:Pergamon Press, Oxford, GreatBritain
Status:Published
Keywords:attitude control systems high accuracy pointing, flight results, star trackers
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Hauptabteilung Raumflugmissionen
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 05:18

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