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Operations CXO Status Report

Friday 13 November 2020 9.00am EST

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

Real-time procedures were executed on Nov 7 to perform an annual check-out of A-side MUPS thrusters, which are selected for use when Chandra is in its safe-mode configuration. Thrusters A2, A3, and A4 were fired. Thrusters performed nominally. Thruster A1 was not fired due to the expected limited life remaining on it. A real-time procedure was also executed on Nov 10 to monitor the ramp-up of the HRC-S detector high voltage, as part of an HRC-S check-out observation of Capella for which all science commanding was in the weekly loads. The real-time procedure and the observation ran nominally.

Additional real-time procedures were executed during each ground contact to reset the DSN Outage Dead Man Load.

A Chandra image release was issued on Nov 12 describing a study which found a bubble of ultra-hot gas at the center of the planetary nebula IC 4593. The study also finds evidence for a point-like X-ray source at the center of IC 4593. For details see:

The schedule of targets for the next week is shown below and include observations of Saturn, which was accepted as a Director's Discretionary Time Target of Opportunity on Oct 19, and an observation of Swift J1858.6-0814, which is a follow-up to a Target of Opportunity accepted on May 4.

        NGC1320                ACIS-S       Nov 15
        NGC1167                ACIS-S
        HD156559               HRC-I        Nov 16
        RBS797                 ACIS-S
        NGC1167                ACIS-S
        RBS797                 ACIS-S
        M33-North              ACIS-I       Nov 17
        Radiation Belts
        MCG-5-23-16            ACIS-S/HETG
        2MASSJ04214586+2023    ACIS-S
        MCG-5-23-16            ACIS-S/HETG  Nov 18
        M51                    ACIS-S
        NGC1167                ACIS-S
        M33-South              ACIS-I       Nov 19
        Saturn                 HRC-I
        SNR0509-67.5           ACIS-S
        Radiation Belts                     Nov 20
        2MASSJ04214586+2023    ACIS-S
        MCG-5-23-16            ACIS-S/HETG
        2MASSJ04214586+2023    ACIS-S
        UGC01958               ACIS-S       Nov 21
        Saturn                 HRC-I
        SwiftJ1858.6-0814      ACIS-S
        SNR0509-67.5           ACIS-S
        OrionNebulaCluster     ACIS-S/HETG  Nov 22
        Radiation Belts


All spacecraft subsystems continued to support nominal operations.

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