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Operations CXO Status Report

Friday 19 September 2025 9.00am EDT

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

A Chandra press release was issued on Sep 18 describing observations of a black hole seen less than a billion years after the big bang which is growing at one of the fastest rates ever recorded. Astronomers used NASA’s Chandra X-ray Observatory to capture the growth rate of the quasar RACSJ 0320-35. Quasars are extremely bright objects that are powered by large amounts of matter funneling around and entering a supermassive black hole. This discovery has implications for how some of the Universe’s first generation of black holes formed. For details see: https://chandra.harvard.edu/press/25_releases/press_091825.html

The schedule of targets for the next week is shown below and includes an observation of NEXUS, which was accepted as a Director's Discretionary Time Target of Opportunity on Aug 27.



------------------------------------------
        NEXUS                  ACIS-I       Sep 22
        CasA                   ACIS-I
        SDSSJ011207.48-0059    ACIS-S
        SDSSJ011441.96+0349    ACIS-S
        4U1626-67              HRC-I /HETG
        AM0305-824             ACIS-S       Sep 23
        SPT-CLJ2305-2248       ACIS-I
        AM2107-474             ACIS-S
        Radiation Belts                     Sep 24
        XMMUJ170147.3-42140    ACIS-I
        SDSSJ003710.56-0927    ACIS-S
        AM2107-474             ACIS-S
        4U1626-67              HRC-I /HETG  Sep 25
        SPT-CLJ2305-2248       ACIS-I
        PSZ2G085.23+39.42      ACIS-I
        4U1626-67              HRC-I /HETG
        SN2003gk               ACIS-S       Sep 26
        2RXSJ152902.6-06125    ACIS-S
        Radiation Belts                     Sep 27
        WLM                    ACIS-I
        SN2017eaw              HRC-I
        PKS1737-60             ACIS-S
        WLM                    ACIS-I
        PDS_456_s2             ACIS-S
        A1550                  ACIS-I       Sep 28
        Abell370               ACIS-I
        A1550                  ACIS-I
        Abell370               ACIS-I
        RMJ103652.7+445235.0   ACIS-I
        WISEAJ232742.89+483    ACIS-S

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

All spacecraft subsystems continued to support nominal operations.

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