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Operations CXO Status Report

Friday 18 January 2019 9.00am EST

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

On Jan 11 a real-time procedure was executed to patch the EPS Current Monitor Threshold to a new lower value which is consistent with the reconfiguration of the battery reconditioning resistors for Battery 3 performed Jan 4. A related CAP was run to clear the EPS fault alarm induced by the Jan 4 procedure. Additional real-time procedures were executed on Jan 12-13 to dump OBC-A and -B memory as a follow-up to the patch. The dump will be used to update the baseline memory images maintained on the ground.

Another real-time procedure was executed on Jan 15 to command ACIS to dump the flight software from EEPROM. This is part of preparations for the move to the new OCC.

The schedule of targets for the next week is shown below and includes an observation of SN2018bsz, which is a follow-up to a Target of Opportunity accepted on May 31.



------------------------------------------
        Radiation Belts
        PSRB0656p14_s7         ACIS-S
        SPT-CLJ0001-5440       HRC-I
        SPT-CLJ2355-5156       HRC-I
        SN2018bsz              ACIS-S
        PGC032873              ACIS-S       Jan 22
        SDSSJ101000.68+3003    ACIS-S       Jan 23
        Radiation Belts
        NGC3281                ACIS-S
        PSRJ1709-4429          ACIS-I       Jan 24
        SDSSJ085051.97+08302   ACIS-S
        zetaPup                ACIS-S/HETG
        PSRJ1709-4429          ACIS-I       Jan 25
        SN2000ew               ACIS-S
        Radiation Belts                     Jan 26
        PGC032873              ACIS-S
        2MFGC13496_s1          ACIS-S
        UGC10683NED02          ACIS-S       Jan 27
        ClGJ092921+120505      ACIS-I
        PGC032873              ACIS-S

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

All spacecraft subsystems continued to support nominal operations.

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