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Operations CXO Status Report

Friday 13 July 2012 9.00am EDT

During the last week the observing schedule was interrupted by a high-radiation event that activated the science instrument safing sequence (SCS 107) and stopped observing at 3:59pm on Jul 12. All spacecraft actions were nominal. A real-time procedure was executed on Jul 13 to disable SCS-29, which was enabled during the safing sequence. Observations of Sgr A* were impacted and will be rescheduled. Planning is underway to attempt a resumption of observing this evening.

Of note this week was the "X-ray Binaries - Celebrating 50 Years Since the Discovery of Sco X-1" science workshop being held in Boston, Jul 10-12.

The schedule of targets for the next week is shown below and includes observations of Sgr A* coordinated with NuSTAR, Keck, VLT, SMA, CSO, CARMA, ALMA, EHT, HESS, and ATCA, an observation of Holmberg IX X-1 coordinated with HST, and an observation of 3C 273 coordinated with NuSTAR.



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Radiation Belts Jul 15 CXOUJ171405.7-38103 ACIS-S Jul 16 3C273 ACIS-S/HETG FGC539 ACIS-S SDSSJ1154+1848 ACIS-S Jul 17 HD152404_P1 ACIS-S SgrA* ACIS-S/HETG Radiation Belts Jul 18 PSRJ1753-1914 ACIS-S SgrA* ACIS-S/HETG six-15 ACIS-I Jul 19 HolmbergIXX-1 ACIS-S M31 ACIS-I J1458.4-2447 ACIS-I Jul 20 SgrA* ACIS-S/HETG Radiation Belts Jul 21 SgrA* ACIS-S/HETG

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All spacecraft subsystems continued to support nominal operations.

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