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Operations CXO Status Report

Friday 31 July 2020 9.00am EDT

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

Real-time procedures were executed on July 30-31 to update Chandra's gyro configuration. Since October 2018 Chandra has been using one gyro from each of two inertial reference units (IRU) for normal operations; this configuration has been updated to two gyros from the same IRU in order to provide added operational robustness in the event of safe modes, to extend gyro lifetime, and to provide thermal benefits from a reduced heat load. At the conclusion of these procedures Chandra has resumed normal science operations.

Additional real-time procedures were executed during each ground contact to reset the DSN Outage Dead Man Load.

Of note this week was the announcement on Jul 27 of the Cycle 22 Peer Review recommended programs. For details see: http://cxc.harvard.edu/target_lists/cycle22/index.html

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



------------------------------------------
        M12                    ACIS-S
        J141646.5+144235.1     ACIS-S       Aug  3
        Radiation Belts
        M12                    ACIS-S
        V1223Sgr               ACIS-S/HETG  Aug  4
        M12                    ACIS-S
        V1223Sgr               ACIS-S/HETG
        ESO450-16              ACIS-S
        Spiderweb              ACIS-S
        2RXSJ161358.3-28150    ACIS-S       Aug  5
        GLIMPSE-C01            ACIS-I
        V1223Sgr               ACIS-S/HETG
        Radiation Belts                     Aug  6
        G32.4+0.1              ACIS-I
        SWIFTJ2033.1+0991      ACIS-S
        H1821+643              ACIS-S
        F2M1151+5359           ACIS-S       Aug  7
        J112509.5+584700.8     ACIS-S
        2RXSJ064814.4+55422    ACIS-S
        JWST-DTDF-10           ACIS-I
        HEPG055.856-03.802     ACIS-I       Aug  8
        GLIMPSE-C01            ACIS-I
        Radiation Belts                     Aug  9
        Mrk653                 ACIS-S
        JWST-DTDF-10           ACIS-I
        UGC07678               ACIS-I
        H1821+643              ACIS-S
        2RXSJ204853.5+12222    ACIS-S
        G32.4+0.1              ACIS-I       Aug 10

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

All spacecraft subsystems continued to support nominal operations.

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