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Operations CXO Status Report

Friday 13 March 2020 9.00am EDT

During the last week the observing schedule was replanned to incorporate an observation of AT2019wxt, which was accepted as a Target of Opportunity on Mar 10. Loads for the replanned schedule were uplinked on Mar 12. Scheduled observations of SPT-CLJ2323-5753, Spiderweb, A1240, and H1821_643 were impacted by the replan and will be rescheduled in a future week.

A real-time procedure was executed on Mar 13 to uplink a flight software patch of the on-board computer (OBC) that improves the Aspect Camera ability to reacquire a guide star when that tracking slot has been captured by a nearby hot pixel.

The Chandra Cycle 22 deadline is moved to Apr 2 6PM EDT for all proposers. This is to help mitigate the effects that the COVID-19 virus is having on the global Chandra community.

The schedule of targets for the next week is shown below and includes an observation of PKS 1413+135, which is a follow-up to a Director's Discretionary Time Target of Opportunity which was accepted on Oct 18.

        Radiation Belts                     Mar 16
        SPT-CLJ2335-5434       ACIS-I
        Spiderweb              ACIS-S       Mar 17
        SPT-CLJ0217-5014       ACIS-I
        Spiderweb              ACIS-S
        SPT-CLJ0217-5014       ACIS-I       Mar 18
        HZ43                   HRC-S /LETG
        J101526.38+305451.9    ACIS-I
        Radiation Belts                     Mar 19
        J123525.9+355622.9     ACIS-S
        16CygABC               HRC-I
        NGC4438                ACIS-S
        16CygABC               HRC-I        Mar 20
        NGC4438                ACIS-S
        SDSSJ143031.19+5242    ACIS-S       Mar 21
        NGC4235                ACIS-S
        Radiation Belts
        PKS1413+135            ACIS-S       Mar 22
        CIZAJ0107.7+5408       ACIS-I
        SDSSJ1223+1241         ACIS-S


All spacecraft subsystems continued to support nominal operations.

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