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Operations CXO Status Report

Friday 8 November 2019 9.00am EDT

During the last week the observing schedule was replanned to incorporate an observation of EXO 1846-031, which was accepted as a Director's Discretionary Time Target of Opportunity on Nov 4. Loads for the replanned schedule were uplinked on Nov 7. Scheduled observations of CIZA J0107.7+5408, 2RXS J022152.8+28104, and J162421.4+270408.7 were impacted by the replan and will be rescheduled in a future week.

A real-time procedure was executed on Nov 1 to uplink a flight software patch that updates the guide star identification threshold used by the Aspect Camera Processing. This is primarily intended to restore these parameters to operational values following an action that has resulted in an OBC reset/initialization. Additional real-time procedures were executed on Nov 7 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer, and on Nov 8 to perform a full-frame dark current readout of the Aspect Camera Assembly CCD.

Of note this week was the Chandra Quarterly Review conducted on Nov 6 at the Wayside Operations Control Center.

The schedule of targets for the next week is shown below and includes observations of AT2019pev, which was accepted as a Target of Opportunity on Oct 2, and an observation of V1298 Tau, which was accepted as a Director's Discretionary Time Target of Opportunity on Oct 17.



------------------------------------------
        Radiation Belts                     Nov 10
        PS16dtm                ACIS-S
        AT2019pev              HRC-S /LETG
        CHIPS0236-6136         ACIS-I       Nov 12
        AT2019pev              ACIS-S
        Radiation Belts                     Nov 13
        NGC884                 ACIS-I
        SDSSJ163342.33+3911    ACIS-S
        NGC884                 ACIS-I       Nov 14
        M87                    HRC-I
        NGC4755                ACIS-I
        HD182572               HRC-I        Nov 15
        NGC884                 ACIS-I
        Radiation Belts
        NGC3766                ACIS-I       Nov 16
        HD20630                ACIS-S       Nov 17
        V1298Tau               ACIS-S
        NGC884                 ACIS-I

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

All spacecraft subsystems continued to support nominal operations.

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