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Operations CXO Status Report

Friday 9 August 2019 9.00am EDT

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

A real-time procedure was executed on Aug 7 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer.

A Chandra press release was issued on Aug 8 describing evidence for the farthest "cloaked" black hole found to date. These massive, growing black holes, surrounded by gas, are difficult to identify at this early phase of their evolution, before they break free of their obscuring environment. At only about 6% of the current age of the universe, this would be the first indication of a black hole hidden by gas at such an early time in the history of the cosmos, 850 million years after the Big Bang. For more information see:

The schedule of targets for the next week is shown below and includes an observation of EXO1846-031, which was accepted as a Target of Opportunity on Aug 1, two observations of SgrA* coordinated with NuSTAR, and an observation of SDSSJ113323+55041 coordinated with VLA.

       Abell2146              ACIS-I       Aug 11
        MRC2024-217            ACIS-S
        SPT-CLJ2306-5120       ACIS-I
        Radiation Belts                     Aug 12
        EXO1846-031            ACIS-S/HETG
        SDSSJ113323+550415     ACIS-S       Aug 13
        MRC2040-236            ACIS-S
        Q0000-263              ACIS-S
        SgrA*                  ACIS-S
        SDSSJ113323+550415     ACIS-S       Aug 14
        SS433-W50easterne      ACIS-I
        Radiation Belts                     Aug 15
        SPT-CLJ2306-5120       ACIS-I
        SgrA*                  ACIS-S
        SS433-W50easterne      ACIS-I       Aug 16
        2RXSJ211827.5-03405    ACIS-S
        zetaPup                ACIS-S/HETG
        Radiation Belts                     Aug 17
        Abell2146              ACIS-I


All spacecraft subsystems continued to support nominal operations.

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