ROSAT Guest Observer Facility

ROSAT Status Report C

May 14 1991


SPECIAL ROSAT SATELLITE STATUS REPORT: May 14th 1991

(General status report will follow later this week)

ROSAT's Y-axis gyro has failed, sending the satellite into safe mode. The the Z and S (cross coupled) gyros are still functioning normally, but the X gyro is problematic (it had been removed from the control loop during the survey, after its drift rate exceeded specifications). An attitude reacquisition is planned for tonight. There appears to be no hope to retrieve the y gyro.

A meeting is planned for tomorrow at the German Space Operations Center (GSOC) to assess the best strategy for continuation of the pointed program. It is expected that pointed observations will begin again within the next few days, once the appropriate modifications to the onboard software have been made. In the meantime, the satellite remains in the safe mode.

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Curator: Michael Arida (ADNET); arida@milkyway.gsfc.nasa.gov
HEASARC Guest Observer Facility


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This file was last modified on Tuesday, 14-Sep-1999 11:47:04 EDT

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