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Operations CXO Status Report

Friday 27 September 2019 9.00am EDT

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

Real-time procedures were executed on Sep 21 and Sep 23 to perform full-frame dark current readouts of the Aspect Camera Assembly CCD.

A Chandra press release was issued on Sep 25 reporting the discovery of a rare closely-spaced triple system of merging galaxies, each centered on a supermassive black hole (SMBH). The techniques used to locate this system lend themselves to location of further examples of this phenomenon, important because the presence of a third SMBH may accelerate the merger of the other two, and because such merger events will result in the production of gravitational waves that should be detectable by future observatories. Chandra observations were complemented by observations from NuSTAR and the Large Binocular Telescope and by archival data from WISE and the Sloan Digital Sky Survey in the investigation of this system. For more information see: https://chandra.harvard.edu/press/19_releases/press_092519.html

The schedule of targets for the next week is shown below and includes an observation of AT2019pev, which was accepted as a Target of Opportunity on Sep 25.



------------------------------------------
        Radiation Belts                     Sep 29
        HD97950C               ACIS-S/HETG
        SDSSJ0827+0327         ACIS-S       Sep 30
        MCXCJ0157.4-0550       ACIS-S
        AT2019pev              HRC-S /LETG
        SDSSJ0827+0327         ACIS-S       Oct  1
        Radiation Belts                     Oct  2
        HD97950C               ACIS-S/HETG
        SGR0755-2933           ACIS-I       Oct  3
        MCXCJ0157.4-0550       ACIS-S
        N132D                  ACIS-S       Oct  4
        Radiation Belts
        SDSSJ233602.98+0017    ACIS-S
        F2M1715+2807           ACIS-S       Oct  5
        HD97950C               ACIS-S/HETG
        MCXCJ0157.4-0550       ACIS-S
        N132D                  ACIS-S       Oct  6
        J0210-0018             ACIS-S
        Radiation Belts

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

All spacecraft subsystems continued to support nominal operations.

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