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Operations CXO Status Report

Friday 5 August 2011 9.00am EDT

During the last week the observing schedule was interrupted by a high radiation event that stopped the daily load at 03:03am EDT on Aug 4 and activated the science instrument safing sequence (SCS 107). All spacecraft actions were nominal. A real-time procedure was executed on Aug 4 disable SCS-29, which was enabled during the safing sequence.

A real-time procedure was executed on Aug 3 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer. A second real-time procedure was executed on Aug 4 to update the on-board ephemeris.

Of note this week was the "2011 X-ray Astronomy School" held in Cambridge, MA Aug 1-5, followed by a CIAO Workshop on Aug 6.

Assuming the radiation environment is low enough to resume science observations later today, the schedule of targets for the next week is shown below.

 S26inNGC7793           ACIS-S       Aug  5
         Radiation Belts                     Aug  7
         XTEJ1710-281           ACIS-S/HETG
         NGC4649                ACIS-S       Aug  8
         Gl124                  ACIS-S       Aug  9
         3C445                  ACIS-S/HETG
         Radiation Belts
         SPT-CLJ2043-5035       ACIS-I       Aug 10
         CHECCS000105-2503      ACIS-I       Aug 11
         PSRJ0821-4300          ACIS-S
         NGC4649                ACIS-S       Aug 12
         Radiation Belts
         Abell1775              ACIS-S
         ESO490-IG026           ACIS-S       Aug 13
         S26inNGC7793           ACIS-S


All spacecraft subsystems continued to support nominal operations.

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