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Operations CXO Status Report

Friday 3 November 2023 9.00am EDT

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

Chandra passed through the 22nd and 23rd eclipses of the season on Oct 29 and Nov 1 respectively, with nominal power and thermal performance. A real-time procedure was executed on Nov 1 to set the short eclipse flag to "true" in preparation for the 24th eclipse of the season.

Real-time procedures were executed on Nov 2 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer and to perform a diagnostic dump of the Control Processing Electronics (CPE).

A Chandra press release was issued on Oct 30 describing observations with Chandra and IXPE that have been used to examine the pulsar wind nebula known as MSH 15-52. Pulsar wind nebulae are clouds of energetic particles blown away from dead, collapsed stars. MSH 15-52 is well-known for its shape that resembles that of a human hand. IXPE observed this for about 17 days of observing time, the longest look at a single object yet for this mission. The IXPE data provides the first map of the magnetic field in the "hand". For details see:

The schedule of targets for the next week is shown below and includes observations of AT2023fhn, which are follow-ups to a Target of Opportunity accepted on Apr 21, and an observation of HE 0230-2130, which was accepted as a Director's Discretionary Time Target of Opportunity on Oct 31.

        NGC2353                ACIS-I       Nov  5
        HE0230-2130            ACIS-S       Nov  6
        Radiation Belts
        NGC2353                ACIS-I
        Mrk1018                ACIS-S/HETG  Nov  7
        SPT-CLJ0101-5332       ACIS-I
        Mrk1018                ACIS-S/HETG
        SPT-CLJ0101-5332       ACIS-I       Nov  8
        Mrk1018                ACIS-S/HETG
        SS433w2                ACIS-I
        NGC2353                ACIS-I
        Mrk1018                ACIS-S/HETG
        Radiation Belts                     Nov  9
        SRGeCL0238.3+2005      ACIS-I
        wolf359                HRC-S
        Wolf359                HRC-S
        NGC2353                ACIS-I
        SRGeCL0238.3+2005      ACIS-I       Nov 10
        wolf359                HRC-S
        Wolf359                HRC-S
        NGC2353                ACIS-I
        SRGeCL0238.3+2005      ACIS-I
        NGC3245                HRC-I        Nov 11
        SDSSJ083322.96+2844    ACIS-S
        SRGeCL0238.3+2005      ACIS-I
        Radiation Belts                     Nov 12
        AT2023fhn              ACIS-S
        BD+20598               ACIS-S
        AT2023fhn              ACIS-S
        BD+20598               ACIS-S
        AT2023fhn              ACIS-S       Nov 13


All spacecraft subsystems continued to support nominal operations.

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