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Operations CXO Status Report

Friday 5 June 2026 9.00am EDT

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

Real-time procedures were executed on Jun 3 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).

Chandra press and image releases were issued on Jun 4 describing observations of the supermassive black hole at the center of the Milky Way, Sagittarius A* (Sgr A*). The images combine data from Chandra with data from the Atacama Large Millimeter Array (ALMA). Using several years of highly detailed ALMA observations, astronomers mapped cold gas within just a few light years of Sgr A*. They uncovered a giant, cone-shaped hole in the cold gas, shown by Chandra to be filled with hot gas and pointing straight at the black hole - the unmistakable imprint of a large, hot, active wind launched from Sgr A*. For details, see: https://chandra.harvard.edu/press/26_releases/press_060426.html

The schedule of targets for the next week is shown below and includes an observation Cyg X-1, which was accepted as a Director's Discretionary Time Target of Opportunity on May 30 and is coordinated with XRISM and an observations of LEDA 184063, which is a follow-up to a Target of Opportunity accepted on Apr 1.



------------------------------------------
        LEDA184063             ACIS-S       Jun  8
        2MASXJ16242022-3311    ACIS-S
        CenterofCOSMOS-Web     ACIS-I
        2RXSJ161409.7-14214    ACIS-S
        CenterofCOSMOS-Web     ACIS-I
        HZ43                   HRC-I /LETG  Jun  9
        HZ43                   HRC-I /LETG
        NGC4593                ACIS-S/HETG
        2RXSJ161409.7-14214    ACIS-S
        CenterofCOSMOS-Web     ACIS-I
        SDSSJ131249.15+2251    ACIS-S
        CygX-1                 ACIS-S/HETG
        NGC4293                ACIS-S
        Radiation Belts                     Jun 10
        CMZMolecularCloud      ACIS-I
        VelaX-1                ACIS-S/HETG
        CMZMolecularCloud      ACIS-I       Jun 11
        WISEJ010050.09-0242    ACIS-S
        CMZMolecularCloud      ACIS-I
        ArLac                  HRC-I
        ArLac                  HRC-I
        Kepler'sSNR            ACIS-S
        ANUMa                  ACIS-S/HETG  Jun 12
        Kepler'sSNR            ACIS-S
        ANUMa                  ACIS-S/HETG
        Radiation Belts                     Jun 13
        Kepler'sSNR            ACIS-S
        A1795                  ACIS-S
        SDSSJ131249.15+2251    ACIS-S
        NGC4293                ACIS-S
        GAIADR243700035056     ACIS-S       Jun 14
        1RXSJ021649.0+70355    ACIS-I
        GAIADR243700035056     ACIS-S
        1RXSJ021649.0+70355    ACIS-I

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

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

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