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Operations CXO Status Report

Friday 19 January 2024 9.00am EST

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

Preparations were completed for the winter 2024 eclipse season; the season contains 30 eclipses and runs from Jan 16 to Apr 2. Real-time procedures were executed on Jan 15 to prepare for the first eclipse: one to activate SCS 29 and one to dump and clear the EPS glitch counters. Chandra passed through the 1st and 2nd eclipses of the season on Jan 16 and 19, with nominal power and thermal performance.

An additional real-time procedure was executed on Jan 18 to enable SCS 92, 93, and 134, which are required to resume HRC observations. HRC observations have been paused since Dec 2023 to allow the implementation of an improved HRC thermal model.

A Chandra image release was issued on Jan 17 describing observations of the microquasar SS 433, at the center of the supernova remnant W50, located about 18,000 light years from Earth. SS 433 exhibits powerful jets that distort the surrounding remnant's shape. The image release combines data from Chandra, the Imaging X-ray Polarimetry Explorer (IXPE), XMM-Newton, WISE, and radio data from ground-based telescopes. For details, see:

The schedule of targets for the next week is shown below and includes an observation of NGC1068, which was accepted as a Director's Discretionary Time Target of Opportunity on Nov 7 and is coordinated with IXPE.

        HZ43                   HRC-I /LETG  Jan 21
        [ZCA2021]BOSS1244S     ACIS-I
        Radiation Belts                     Jan 22
        2MASXJ13003807+5454    ACIS-S
        ACT-CLJ0947.9-0120     ACIS-S       Jan 23
        XIBOO                  HRC-I
        [ZCA2021]BOSS1244S     ACIS-I
        SDSSJ092045.60+1933    ACIS-S
        FIRSTJ142738.5+3312    ACIS-S
        WISEAJ092637.18+402    ACIS-S
        WISEAJ132104.22+460    ACIS-S
        WISEAJ083354.40+261    ACIS-S       Jan 24
        FIRSTJ142738.5+3312    ACIS-S
        ACT-CLJ0947.9-0120     ACIS-S
        Radiation Belts                     Jan 25
        FIRSTJ142738.5+3312    ACIS-S
        SDSSJ084824.14+16570   ACIS-S
        NGC6242                ACIS-I
        SDSSJ084824.14+16570   ACIS-S
        zwcl1856.8+6616        ACIS-I       Jan 26
        ACT-CLJ0947.9-0120     ACIS-S
        NGC1068                ACIS-S
        WISEAJ053036.98-373    ACIS-S
        SDSSJ085302.12+18325   ACIS-S
        NGC6242                ACIS-I
        SDSSJ085302.12+18325   ACIS-S
        NGC6242                ACIS-I       Jan 27
        ACT-CLJ0947.9-0120     ACIS-S
        Radiation Belts
        1eRASSJ110059.9-434    ACIS-S
        2MASSJ08194059+0823    ACIS-I       Jan 28
        LMCDeepField05         ACIS-I
        2MASSJ08194059+0823    ACIS-I
        LMCDeepField05         ACIS-I
        2MASSJ08194059+0823    ACIS-I


All spacecraft subsystems continued to support nominal operations.

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