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Operations CXO Status Report

Friday 6 April 2018 9.00am EDT

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

A real-time procedure was executed on Feb 7 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer.

A Chandra press release was issued on Apr 2 describing observations of the cold front located in the Perseus galaxy cluster that extends for about two million light years. The cold front consists of a relatively dense band of gas with a "cool" temperature of about 30 million degrees moving through lower density hot gas with a temperature of about 80 million degrees. Over time, the front has remained extremely sharp rather than becoming diffuse. For details see:

A Chandra press release was issued on Apr 3 announcing the selection of the 2018 Einstein Fellows, who will conduct research related to physics of how the universe works. For details see:

A Chandra press release was issued on Apr 4 describing archival analysis demonstrating the existence of a dozen black hole-low mass binaries in their inactive state gathered around Sgr A*. The authors extrapolated from their analysis that there must be anywhere from 300 to 500 black hole-low mass binaries and about 10,000 isolated black holes in the area surrounding Sgr A*. For details see:

Also of note this week was the Chandra Quarterly Review conducted on Apr 4 in Cambridge.

The schedule of targets for the next week is shown below and includes an observation of 3FGL J1544-1125 coordinated with the VLA.

        NGC4302                ACIS-S       Apr  9
        NGC4298                ACIS-S
        NGC3738                ACIS-S
        ArLac                  HRC-I
        XXL-S0225              ACIS-S
        Radiation Belts                     Apr 10
        XXL-S0225              ACIS-S
        1RXSJ125029.7-37022    ACIS-I       Apr 11
        NGC4548                ACIS-S
        IC3392                 ACIS-S
        JWST-DTDF-6            ACIS-I
        A1795                  ACIS-I
        JWST-DTDF-6            ACIS-I       Apr 12
        A1795                  ACIS-I
        J1138+4732             ACIS-S
        A1795                  ACIS-S
        Radiation Belts                     Apr 13
        A1795                  ACIS-I
        JWST-DTDF-6            ACIS-I
        NGC4313                ACIS-S
        NGC4639                ACIS-S       Apr 14
        NGC4041                ACIS-S
        LSBCF574-09            ACIS-S
        NGC4390                ACIS-S
        NGC3838                ACIS-S
        Kapteyn'sStar          ACIS-S
        SDSSJ115606.14-0219    ACIS-S       Apr 15
        A1795                  ACIS-I
        Radiation Belts                     Apr 16
        NGC4330                ACIS-S
        3FGLJ1544-1125         ACIS-S


All spacecraft subsystems continued to support nominal operations.

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