Operations CXO Status Report

Friday 28 March 2003 8.30am EST

During the last week Chandra completed the observing schedule as planned. Preparations were completed for performing a manual momentum dump using thruster A-1 (at 100%), A2 and A3 on 30 March. A flight software patch has been prepared to provide high rate telemetry of the bus current during the unload to help discriminate between specific fault cases (VDE vs thruster). A Chandra press release was issued on 24 March that announced the use of Chandra to confirm a connection between a gamma-ray burst and Supernova explosion. For details see: http://chandra.harvard.edu/press/03_releases/press_032403.html. The observing schedule for next week is shown below and is largely devoted to a raster of over 60 observations of an NOAO field.

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NOAO Field (22 Obs)    ACIS-I       Mar 31
Radiation Belts                     Apr 1
NOAO Field (30 Obs)    ACIS-I       Apr 2
Radiation Belts                     Apr 4
NOAO Filed (12 Obs)    ACIS-I       Apr 5
A1118-616              ACIS-S       Apr 5
PSR J1016-5857         ACIS-S       Apr 6
HD110073               ACIS-I       Apr 6
UN J1141-0143          ACIS-S       Apr 6
Abell 1201             ACIS-S       Apr 6
LNS 3                  ACIS-S       Apr 7

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All spacecraft subsystems, with the exception of MUPS thruster A-1 as noted above, continued to operate nominally.

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