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Operations CXO Status Report

Friday 29 November 2024 9.00am EST

During the last week, following observation of higher than predicted HRC Central Electronics Assembly (CEA) temperatures, it was concluded that future HRC observations were at risk of causing the CEA temperature to exceed its 12 C limit. On Nov 27 at 2:29pm EST, a real time procedure was executed to prevent subsequent HRC observations in the weekly loads from running. The procedure completed nominally and disabled SCSs 92, 93, and 134. Nine scheduled HRC observations in the weekly approved loads can no longer execute and result in science idle time. They will be rescheduled at a later date. ACIS observations are continuing as scheduled. During the last week Chandra completed the rest of the observing schedule as planned.

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



------------------------------------------
        Radiation Belts                     Dec  1
        eRASSUJ130406.1-533    ACIS-S
        HESSJ1303-631          ACIS-S
        NuSTARJ053449+2126.    ACIS-I
        PSZ2G198.47-23.69      ACIS-I
        NGC1433                ACIS-S       Dec  3
        SDSSJ104454.87+3540    ACIS-I
        MGJ2019+1127           ACIS-S       Dec  4
        Radiation Belts
        MGJ2019+1127           ACIS-S
        CasA                   ACIS-I       Dec  5
        SDSSJ104454.87+3540    ACIS-I
        eRASS1J050129.5-073    ACIS-S
        1eRASSJ095247.0-122    ACIS-S       Dec  6
        UGC12741               ACIS-S
        SDSSJ141131.88+1910    ACIS-S
        SDSSJ163802.92+2627    ACIS-S
        NGC1087                ACIS-S
        Radiation Belts                     Dec  7
        NGC1087                ACIS-S
        2RXSJ225710.6+36394    ACIS-S
        NGC1087                ACIS-S       Dec  8
        ACT-CLJ2326.0+0810     ACIS-S
        ACT-CLJ2317.7-1104     ACIS-S
        eRASS1J050129.5-073    ACIS-S

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

All spacecraft subsystems continued to support nominal operations.

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