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Operations CXO Status Report

Friday 20 June 2025 9.00am EDT

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

Real-time procedures were executed on Jun 15, 16, and 17 to dump OBC-A and -B memory as a follow-up to the Jun 12 upload of the patch to update the Low Energy Transmission Grating insertion logic. The dump will be used to update the baseline memory images maintained on the ground.

An issue occurred with data downlinked on Jun 12 during the comm pass with DSS-65 beginning at 5:15PM EDT. Due to a software issue in the DSN equipment, the data were partially corrupted and are unusable for science processing. Three observations were impacted and will be rescheduled in future weeks.

The schedule of targets for the next week is shown below and includes an observation of SN2014ab coordinated with VLA.



------------------------------------------
        SN1941C                HRC-I        Jun 23
        NGC4951                ACIS-S
        Radiation Belts
        [JDW2009]G359.55+0.    ACIS-I
        LHS475                 HRC-I        Jun 24
        NGC4951                ACIS-S
        SNRG1.9+0.3            ACIS-S
        SDSSJ134100.24+4225    ACIS-S
        A1795                  ACIS-S
        SNRG1.9+0.3            ACIS-S       Jun 25
        SN2014ab               ACIS-S
        SNRG1.9+0.3            ACIS-S
        IGRJ17381-2345         ACIS-S       Jun 26
        Radiation Belts
        Abell370               ACIS-I
        CasA                   ACIS-S
        SNRG15.9+0.2           ACIS-S
        ArLac                  HRC-I        Jun 27
        UGC695                 ACIS-I
        HEPG015.284-10.582     ACIS-I
        Abell370               ACIS-I
        G29-38                 HRC-I
        Abell2255              ACIS-I
        SNRG15.9+0.2           ACIS-S       Jun 28
        A1795                  ACIS-I
        Radiation Belts                     Jun 29
        [JDW2009]G359.55+0.    ACIS-I
        NGC4298                ACIS-S
        G29-38                 HRC-I

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

All spacecraft subsystems continued to support nominal operations.

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