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Operations CXO Status Report

Friday 15 May 2026 9.00am EDT

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

A real-time procedure was executed on May 14 to uplink a flight software patch that updates the Aspect Camera Assembly Processor Electronics Assembly to address several issues related to the processing of CCD pixel values.

A Chandra image release was issued on May 12 describing observations of Abell 2029 from NASA’s Chandra X-ray Observatory that suggest an event-filled past for the galaxy cluster. The X-rays reveal evidence for a collision with a smaller cluster about four billion years ago. A sloshing spiral structure was formed when the smaller cluster made its first pass through Abell 2029, pulling its gas sideways. Galaxy clusters are the largest structures in the Universe held together by gravity and are bellwethers for cosmic growth. For details see: https://chandra.harvard.edu/photo/2026/a2029/

The schedule of targets for the next week is shown below and includes an observation of TDE2023mfm, which was accepted as a Target of Opportunity on Apr 21.



------------------------------------------
        Radiation Belts                     May 17
        ZwCl0857.9+2107        ACIS-S
        NGC5728                ACIS-S       May 18
        ZwCl0857.9+2107        ACIS-S
        NGC5728                ACIS-S
        ZwCl0857.9+2107        ACIS-S
        NGC5728                ACIS-S
        CenterofCOSMOS-Web     ACIS-I
        NGC5728                ACIS-S       May 19
        SDSSJ155636.40+4152    ACIS-S
        Radiation Belts                     May 20
        TVCassiopeia           ACIS-S/HETG
        SNRG21.5-0.9           HRC-I
        E0102-72.3             ACIS-I
        NGC5728                ACIS-S       May 21
        E0102-72.3             ACIS-S
        E0102-72.3             ACIS-I
        MASTERJ1449-3244       ACIS-S       May 22
        BOSS1348               ACIS-I
        Radiation Belts                     May 23
        TVCassiopeia           ACIS-S/HETG
        TDE2023mfm             ACIS-S
        2RXSJ155154.5-26220    ACIS-S
        SDSSJ094314.26+1023    ACIS-S       May 24
        NGC4293                ACIS-S
        2MASXJ16125120-0521    ACIS-S

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

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

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