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Operations CXO Status Report

Friday 3 July 2026 9.00am EDT

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

Real-time procedures were executed on Jul 1 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 image release was issued on Jun 30 in celebration of the 250th birthday of the United States. NASA has unveiled four cosmic images from its Chandra X-ray Observatory rendered in red, white, and blue that represent the wonders of the universe the agency explores. The images are accompanied by a trio of new sonifications — a technique that translates astronomical data into sounds. For details see: https://chandra.harvard.edu/photo/2026/250th/

A Chandra press release was issued on Jul 1 describing a new result showing that the outer spiral arms in the Milky Way galaxy may reach wider than previously thought. This discovery was made by measuring light echoes from distant gamma-ray bursts using NASA’s Chandra and ESA’s XMM-Newton. This finding may lead astronomers to adjust their understanding of our home galaxy's structure. For details see: https://chandra.harvard.edu/press/26_releases/press_070126.html

The schedule of targets for the next week is shown below.



------------------------------------------
        ASASSN-14ko            ACIS-S       Jul  5
        Abell3558SE            ACIS-I       Jul  6
        SNRG1.9+0.3            ACIS-S
        Radiation Belts                     Jul  7
        [CTC2021]VelaCCR1      ACIS-I
        SNRG1.9+0.3            ACIS-S
        [CTC2021]VelaCCR1      ACIS-I
        SNRG1.9+0.3            ACIS-S
        Abell3558SE            ACIS-I
        Snake                  ACIS-I       Jul  8
        SDSSJ164818.07+4155    ACIS-S
        Snake                  ACIS-I
        SDSSJ141843.40+2809    ACIS-S
        Snake                  ACIS-I       Jul  9
        Radiation Belts
        PerseusclusterE        ACIS-I
        ZTFJ1858-2024          ACIS-S
        PerseusclusterE        ACIS-I       Jul 10
        ZTFJ1858-2024          ACIS-S
        PerseusclusterE        ACIS-I
        2MASXJ20043345-1113    ACIS-S
        PerseusclusterE        ACIS-I
        Abell98N               ACIS-I       Jul 11
        Snake                  ACIS-I
        Radiation Belts                     Jul 12
        PerseusclusterN        ACIS-I
        PKS2008-159            ACIS-S
        PerseusclusterN        ACIS-I

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

All spacecraft subsystems except HRC-S continued to support nominal operations.

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