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Operations CXO Status Report

Friday 21 February 2020 9.00am EDT

During the last week the observing schedule was replanned to incorporate an observation of GRB200219A, which was accepted as a Target of Opportunity on Feb 19. Loads for the replanned schedule will be uplinked on Feb 21. A scheduled observation of SPT-CLJ2335-5434 was impacted by the replan and will be rescheduled in a future week.

A real-time procedure was executed on Feb 15 to perform a diagnostic dump of the Control Processing Electronics (CPE).

A Chandra image release was issued on Feb 20 featuring several X-ray binary stars in the Milky Way globular cluster Terzan 5, located about 19,000 light years from Earth. The most remarkable of these binaries, composed of a neutron star in a close orbit with a sun-like star, was observed switching between the behavior expected for a low-mass X-ray binary to that expected for a millisecond pulsar and back again. For more information see:

The schedule of targets for the next week is shown below and includes an observation of SN2020bvc, which is a followup to a Director's Discretionary Time Target of Opportunity accepted on Feb 12.

        A1240                  ACIS-I       Feb 22
        EtaCarinaedeepmin      ACIS-S
        SPT-CLJ2335-5434       ACIS-I
        RMJ100750.4+003154.7   ACIS-I       Feb 23
        GRB200219A             ACIS-S
        Brey84                 ACIS-S/HETG
        Radiation Belts                     Feb 24
        E0102-72               ACIS-S
        PMNJ1103-2329          HRC-S /LETG
        LEDA64440              ACIS-S       Feb 25
        PSRJ2022+3842          ACIS-S
        SDSSJ1228+3414         ACIS-S       Feb 26
        Spiderweb              ACIS-S
        Radiation Belts                     Feb 27
        A1240                  ACIS-I
        PSRJ2022+3842          ACIS-S
        Spiderweb              ACIS-S
        3CR390                 ACIS-S       Feb 28
        J105854.8+080044.1     ACIS-S
        SN2020bvc              ACIS-S
        PSRJ2022+3842          ACIS-S       Feb 29
        Radiation Belts
        PSRJ2022+3842          ACIS-S
        Spiderweb              ACIS-S       Mar  1
        PSRJ2022+3842          ACIS-S
        A1240                  ACIS-I


All spacecraft subsystems continued to support nominal operations.

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