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Operations CXO Status Report

Friday 14 October 2011 9.00am EDT

During the last week Chandra completed the observing schedule as planned.

Chandra passed through the eighth and ninth eclipses of the fall season on Oct 9 and 12 respectively, with nominal power and thermal performance. A real-time procedure was executed on Oct 11 to back out a patch to the Control Processing Electronics (CPE). The patch had configured the CPE for the Draconid meteor shower on Oct 8. A second real-time procedure was executed on Oct 13 to update the on-board ephemeris. A third real-time procedure was executed on Oct 13 to re-initialize the flight software Thruster Command Processing subfunction in order to prevent the occurrence of an overflow condition.

A Chandra image release was issued on Oct 12 describing observations of G299.2-2.9, a supernova remnant found about 16,000 light years from Earth in the Milky Way galaxy. Evidence points to G299.2-2.9 being the remains of a Type Ia supernova. Because it is older than most supernova remnants caused by these explosions, at an age of about 4500 years, G299.2-2.9 provides astronomers with an excellent opportunity to study how these objects evolve over time. For details see:

The schedule of targets for the next week is shown below.

Radiation Belts                   Oct 17
      SN2010jl            ACIS-S
      GX349+2             ACIS-S HETG   Oct 18
      IGRJ17427-3018      HRC-I
      SPT-CLJ0013-4906    ACIS-I
      A133-7              ACIS-I        Oct 19
      IC348               ACIS-I
      Radiation Belts                   Oct 20
      EtaCar              ACIS-S HETG
      A133-8              ACIS-I        Oct 21
      IC348               ACIS-I        Oct 22
      Radiation Belts


All spacecraft subsystems continued to support nominal operations.

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