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Operations CXO Status Report

Friday 17 April 2015 9.00am EDT

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

A real-time procedure was executed on Apr 14 to perform a diagnostic dump of the Control Processing Electronics (CPE). A second real-time procedure was executed on Apr 15 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 Apr 16 describing observations of the globular cluster NGC 6388. A planet may have been ripped apart by a white dwarf star in this globular cluster in the outskirts of the Milky Way. A white dwarf is the dense core of a star like the Sun that has run out of nuclear fuel. Combining data from Chandra and several other telescopes, researchers think a "tidal disruption" may explain what is observed. For details see: http://chandra.si.edu/photo/2015/ngc6388/

The schedule of targets for the next two weeks is shown below and includes an observation of SN2014C, accepted as a Director's Discretionary Time TOO follow-up on Dec 15, and an observation of the Cas A CCO, accepted as a Director's Discretionary Time TOO on Mar 9.



------------------------------------------
        Radiation Belts                     Apr 19
        CygnusA-EHotspot       ACIS-I
        GRB130702A             ACIS-S       Apr 20
        SN2014C                ACIS-S
        G256.45-65.71          ACIS-I       Apr 21
        PSRB1259-63            ACIS-I
        Radiation Belts                     Apr 22
        CygnusA-EHotspot       ACIS-I
        Tycho                  ACIS-I
        Radiation Belts                     Apr 24
        RXCJ1135.6-2019        ACIS-I       Apr 25
        SgrAcomplex1           ACIS-I
        RXCJ144248.5+120042    ACIS-I       Apr 26
        Abell1795outskirts     ACIS-I
        Radiation Belts                     Apr 27
        CasACCO                ACIS-S
        A1795-B (2 obs)        ACIS-I       Apr 28
        Radiation Belts                     Apr 29
        CassiopeiaA            ACIS-S       Apr 30
        CasACCO                ACIS-S       May  1
        Abell1795outskirts     ACIS-I
        NGC4487                ACIS-S       May  2
        MCG+01-32-049          ACIS-S
        Radiation Belts
        CygnusA-EHotspot       ACIS-I       May  3
        Abell1795outskirts     ACIS-I

------------------------------------------

All spacecraft subsystems continued to support nominal operations.

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