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Operations CXO Status Report

Friday 30 May 2025 9.00am EDT

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

A Chandra photo release was issued on May 28, describing observations of ASKAP J1832. This is the first time that an X-ray signal has been found in a long period radio transient. Using Chandra, the team discovered that ASKAP J1832 is regularly varying in X-rays every 44 minutes, identical to the radio variability. The source also faded in both wavelengths over the course of six months. For details, see: https://chandra.si.edu/press/25_releases/press_052825.html

The schedule of targets for the next week is shown below, and includes an observation of SZ Cha coordinated with HST and JWST, and an observation of 4U 1630-47, which is a follow-up to a Target of Opportunity accepted on Apr 8 and is coordinated with NuStar and NICER.



------------------------------------------
        XMMUJ170147.3-42140    ACIS-I       Jun  1
        1eRASSJ120806.9+291    ACIS-S       Jun  2
        Radiation Belts
        PSZ2G358.94-70.57      ACIS-I
        NGC6657                ACIS-S
        PSRJ1101-6101          ACIS-I
        XMMUJ170147.3-42140    ACIS-I       Jun  3
        HZ43                   HRC-S /LETG
        1E2215.7-0404/1E       ACIS-I
        1E161348-5055.1        ACIS-S       Jun  4
        HZ43                   HRC-S /LETG
        [ZCA2021]BOSS1244S     ACIS-I
        IGRJ17162-2117         ACIS-I
        Radiation Belts                     Jun  5
        NGC410                 ACIS-S
        1RXSJ174155.3-121157   ACIS-S
        NGC410                 ACIS-S
        A1795                  ACIS-I
        IGRJ16320-4751         ACIS-S/HETG  Jun  6
        NGVSJ123104.48+1156    ACIS-S
        SZCha                  ACIS-S
        Abell3017              ACIS-S       Jun  7
        4U1630-47              ACIS-S/HETG
        Radiation Belts
        XMMUJ170147.3-42140    ACIS-I       Jun  8
        IGRJ17538-2544         ACIS-I
        Abell3017              ACIS-S
        IGRJ16320-4751         ACIS-S/HETG
        QSOB1033+1342          ACIS-S

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

All spacecraft subsystems continued to support nominal operations.

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