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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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