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Operations CXO Status Report

Friday 15 April 2022 9.00am EDT

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

Preparations were completed for the Spring 2022 eclipse season; the season contains 14 eclipses and runs from April 14 to May 18. Real-time procedures were executed on Apr 13 to prepare for the first eclipse by dumping and clearing the EPS glitch counters, activating SCS 29, and setting the Short Eclipse Flag to true (short). Chandra passed through the first eclipse the season on Apr 14 with nominal power and thermal performance. An additional real-time procedure was executed on Apr 14 to set the Short Eclipse Flag to false (medium).

A real-time procedure was executed on Apr 14 to upload the MUPS Effective Thruster Algorithm (META) Patch. An additional real-time procedure was executed on Apr 15 to dump OBC-A memory as a follow-up to the patch. The dump will be used to update the baseline memory images maintained on the ground.

The schedule of targets for the next week is shown below and includes an observation of 4U 1626-67 coordinated with IXPE.



------------------------------------------
        ACOS780                ACIS-S       Apr 18
        Abell2744              ACIS-I
        ACOS780                ACIS-S
        Abell2744              ACIS-I
        GDH6                   ACIS-I       Apr 19
        A1795                  ACIS-I
        Radiation Belts
        A1795                  ACIS-I
        A2319                  ACIS-I       Apr 20
        2RXSJ144522.7-08541    ACIS-S
        GDHIdp35               ACIS-I
        Abell2744              ACIS-I
        GDHIdp35               ACIS-I       Apr 21
        A1795                  ACIS-I
        UGC4308                ACIS-S
        GDH6                   ACIS-I
        GDH6                   ACIS-I
        GDHIdp35 (4 times)     ACIS-I       Apr 22
        GDHIdp38               ACIS-I
        Radiation Belts
        A1795                  ACIS-I
        A2319                  ACIS-I
        FRB200430              ACIS-S       Apr 23
        PKS1830-211            ACIS-S
        Abell2744              ACIS-I
        4U1626-67              ACIS-S/HETG
        PKS1417-19             ACIS-S       Apr 24
        GDH6                   ACIS-I
        Abell2744              ACIS-I
        GDH6                   ACIS-I
        FRB200430              ACIS-S
        Radiation Belts

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

All spacecraft subsystems except HRC continued to support nominal operations.

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