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Operations CXO Status Report

Friday 11 September 2026 9.00am EDT

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

Chandra press and image releases were issued on Jul 21 describing Chandra observations of six galaxies --- two spirals and four ellipticals --- that reveal a possibly new class of objects that emit unusually low-energy X-rays but intense levels of ultraviolet radiation. These "hypersoft X-ray sources", which probably have accretion onto a compact object (white dwarf, neutron star, or black hole) as their energy source, may be precursors of supernovae. Their strong ultraviolet emission may contribute to the ionization of interstellar material. For details, see: https://chandra.si.edu/press/26_releases/press_090926.html

The schedule of targets for the next week is shown below and includes an observation of NGC1358 coordinated with NuSTAR, observations of SN2026sqf, which was accepted as a Director's Discretionary Time Target of Opportunity on Aug 27, an observation of AT2024dky, which was accepted as a Director's Discretionary Time Target of Opportunity on Jul 16, and observations of 5C7.230, which was accepted as a Director's Discretionary Time Target of Opportunity on Sep 4.



------------------------------------------
        [CTC2021]VelaCCR1      ACIS-I       Sep 14
        SN2021ocs              ACIS-S
        [CTC2021]VelaCCR1      ACIS-I
        SN2021ocs              ACIS-S
        [CTC2021]VelaCCR1      ACIS-I
        2RXSJ224322.5-24243    ACIS-S
        NGC5728                ACIS-S
        SDSSJ231240.03-08391   ACIS-S       Sep 15
        NGC5728                ACIS-S
        SDSSJ224240.98-00252   ACIS-S
        AT2024dky              HRC-I
        SNRG1.9+0.3            ACIS-S
        Radiation Belts                     Sep 16
        SDSSJ101730.98+47022   ACIS-S
        CasA (3 obs)           ACIS-I
        MACSJ0018.5+1626       ACIS-I
        5C7.230                ACIS-S
        3CR17                  ACIS-S       Sep 17
        5C7.230                ACIS-S
        MACSJ0018.5+1626       ACIS-I
        SDSSJ142314.36+6358    ACIS-S
        MACSJ0018.5+1626       ACIS-I
        NGC1358                ACIS-S       Sep 18
        3CR17                  ACIS-S
        Radiation Belts                     Sep 19
        SN2026sqf              ACIS-S
        CasA                   ACIS-I
        CasA                   ACIS-S
        CasA                   ACIS-S
        MACSJ0018.5+1626       ACIS-I
        SDSSJ142314.36+6358    ACIS-S
        MACSJ0018.5+1626       ACIS-I
        SN2026sqf              ACIS-S
        MACSJ0018.5+1626       ACIS-I       Sep 20
        SNRG1.9+0.3            ACIS-S
        MACSJ0018.5+1626       ACIS-I
        SDSSJ084755.63+26314   ACIS-S
        3CR17                  ACIS-S

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

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