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Operations CXO Status Report

Friday 22 December 2023 9.00am EST

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

A Chandra image release was issued on Dec 19 describing observations of the cluster of young stars NGC 2264, referred to as the "Christmas Tree Cluster" because of its shape. The composite image joins Chandra data with optical and infrared data from gound-based telescopes. The cluster, located about 2,500 light years from Earth, contains stars in the age range from one to five million years. Such young stars are volatile and produce strong flares in X-rays as well as variations seen at different wavelengths of light. For details see: https://chandra.harvard.edu/photo/2023/ngc2264/

The schedule of targets for the next week is shown below and includes observations of GRB231117A, which is a follow-up to a Target of Opportunity which was accepted on Dec 14, and observations of NGC4151, which was accepted as a Director's Discretionary Time Target of Opportunity on Dec 14 and is coordinated with XRISM.



------------------------------------------
        WISEJ060800.80+3058    ACIS-S       Dec 24
        A85North               ACIS-I       Dec 25
        RMon                   ACIS-S
        NGC4151                ACIS-S/HETG
        RMon                   ACIS-S       Dec 26
        1eRASSJ121710.8-114    ACIS-S
        NGC4151                ACIS-S/HETG
        Radiation Belts                     Dec 27
        A85North               ACIS-I
        RMon                   ACIS-S
        1eRASSJ121710.8-114    ACIS-S
        NuSTARJ053449+2126.    ACIS-I
        NGC4151                ACIS-S/HETG
        B2.20709+24B           ACIS-S       Dec 28
        NGC5248                ACIS-I
        WISEAJ084522.97+032    ACIS-S
        MKN421                 ACIS-S/LETG
        Radiation Belts                     Dec 29
        MKN421                 ACIS-S/LETG
        MKN421                 ACIS-S/LETG  Dec 30
        SDSSJ081019.47+0950    ACIS-S
        DESJ0320-35            ACIS-S
        HEPG187.438+03.674     ACIS-I
        GRB231117A             ACIS-S
        HEPG188.859+04.517     ACIS-I       Dec 31
        GRB231117A             ACIS-S
        DESJ0320-35            ACIS-S
        3C196.1                ACIS-S
        Radiation Belts                     Jan  1

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

All spacecraft subsystems continued to support nominal operations.

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