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Operations CXO Status Report

Friday 16 September 2016 9.00am EDT

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

A real-time procedure was executed on Sep 9 to uplink stored command sequences needed for a special activity on Sep 13 to warm the Aspect Camera Assembly CCD while pointing at the Pleiades constellation. This is intended to anneal radiation damage in the CCD. A second real-time procedure was executed during the annealing activity on Sep 13 to raise the CCD temperature from +15 C to +20 C to enhance the annealing effect.

A Chandra press release was issued on Sep 14 describing the first detection of X-rays from Pluto. Since Pluto is cold, rocky, and without a magnetic field, it has no natural mechanism for emitting X-rays. In conjunction with data from the flyby of NASA's New Horizon spacecraft showing that Pluto's atmosphere is quite stable, the detection represents an interesting challenge to understand. For details see:

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

        Radiation Belts                     Sep 19
        SNR1987A               ACIS-S/HETG
        PSZ2_G278.79+08.54     ACIS-I
        CentaurusA             ACIS-I       Sep 20
        MCG-03-58-007          ACIS-S
        ArLac (21 obs)         HRC-I        Sep 21
        Mkn876                 ACIS-S/HETG
        Radiation Belts
        IDCSJ1433.2+3306       ACIS-I
        ArLac (5 obs)          HRC-S        Sep 22
        PSOJ334                ACIS-S
        ArLac (16 obs)         HRC-S        Sep 23
        SNR1987A               ACIS-S/HETG
        Radiation Belts                     Sep 24
        MCG-03-58-007          ACIS-S
        2MASSJ00240376+2626    ACIS-S       Sep 25
        Mkn876                 ACIS-S/HETG
        G098.12+30.30          ACIS-I
        IDCSJ1433.2+3306       ACIS-I


All spacecraft subsystems continued to support nominal operations.

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