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Operations CXO Status Report

Friday 15 August 2025 9.00am EDT

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

Chandra passed through the 5th, 6th, and 7th eclipses of the season on Aug 10, 12, and 15 respectively, with nominal power and thermal performance.

Real-time procedures were executed on Aug 15 to update the ACIS Flight Software to version 61 (Standard H, Optional K) and to update the txings parameters to optimized values appropriate for the current state of the solar cycle. These actions will improve the robustness of ACIS operations.

Of note this week was a technical interchange meeting between operations management for Chandra and James Webb Space Telescope where Chandra shared lessons learned regarding efficiency and automation.

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



------------------------------------------
        Radiation Belts                     Aug 18
        SDSSJ133610.96+1845    ACIS-S
        PerseusclusterE        ACIS-I
        SDSSJ221220.34+0033    ACIS-S       Aug 19
        SpARCSJ163852+40384    ACIS-I
        1E2215.7-0404/1E       ACIS-I
        SDSSJ164039.03+4320    ACIS-S
        1E2215.7-0404/1E       ACIS-I       Aug 20
        Radiation Belts
        A1795                  ACIS-I       Aug 21
        Abell2255              ACIS-I
        1E2215.7-0404/1E       ACIS-I
        NGC1300                ACIS-S
        PSZ2G041.43-66.81      ACIS-I       Aug 22
        GAMA5240292            ACIS-S
        SMC2857                ACIS-S
        PSRJ1418-6058          ACIS-I       Aug 23
        Radiation Belts
        VelaX-1                ACIS-S/HETG
        LBQS2211-1915          ACIS-S
        SDSSJ035011.17-06050   ACIS-S       Aug 24
        Abell370               ACIS-I
        NGC410                 ACIS-S

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

All spacecraft subsystems continued to support nominal operations.

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