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Operations CXO Status Report

Friday 6 March 2026 9.00am EST

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

Real-time procedures were executed on Mar 4 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer and to perform a diagnostic dump of the Control Processing Electronics (CPE).

A real-time procedure was executed on Mar 6 to test HRC-S operational stability. Observations with the HRC-S detector have been suspended since the HRC-S High-Voltage anomaly on Oct 23, 2025.

The schedule of targets for the next week is shown below, and includes an observation of AT2026dbl, which is a follow-up to a Target of Opportunity accepted on Feb 20, and is coordinated with NuStar, and an observation of GS 1354-64, which is a follow-up to a Target of Opportunity, which was accepted on Jan 30 and is coordinated with NuSTAR, Gemini, JVLA, and NICER.



------------------------------------------
        Radiation Belts                     Mar  8
        GS1354-64              ACIS-S/HETG
        UGC06457               ACIS-I       Mar  9
        GALEXASCJ211218.07-    ACIS-S
        Radiation Belts
        PerseusclusterN        ACIS-I       Mar 10
        SDSSJ105432.03+1228    ACIS-S
        PerseusclusterN        ACIS-I
        AT2026dbl              ACIS-S
        GaiaDR233081522084     ACIS-S       Mar 11
        SNR1987A               ACIS-S/HETG
        SNR1987A               ACIS-S/HETG
        SDSSJ105432.03+1228    ACIS-S
        Radiation Belts                     Mar 12
        SDSSJ105432.03+1228    ACIS-S
        PerseusclusterW        ACIS-I
        SDSSJ105432.03+1228    ACIS-S       Mar 13
        PerseusclusterW        ACIS-I
        SDSSJ110540.09+06422   ACIS-S
        PerseusclusterS        ACIS-I
        Mrk732_s1              ACIS-S
        PerseusclusterS        ACIS-I
        Mrk732                 ACIS-S       Mar 14
        PerseusclusterE        ACIS-I
        IC0678                 ACIS-I
        PerseusclusterE        ACIS-I
        CloverleafORC          ACIS-I
        Radiation Belts                     Mar 15
        CloverleafORC          ACIS-I
        PerseusclusterE        ACIS-I
        PerseusclusterE        ACIS-I
        CloverleafORC          ACIS-I

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

All spacecraft subsystems except HRC-S continued to support nominal operations.

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