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Operations CXO Status Report

Friday 16 September 2016 9.00am EDT

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

A real-time procedure was executed on Sep 9 to uplink stored command sequences needed for a special activity on Sep 13 to warm the Aspect Camera Assembly CCD while pointing at the Pleiades constellation. This is intended to anneal radiation damage in the CCD. A second real-time procedure was executed during the annealing activity on Sep 13 to raise the CCD temperature from +15 C to +20 C to enhance the annealing effect.

A Chandra press release was issued on Sep 14 describing the first detection of X-rays from Pluto. Since Pluto is cold, rocky, and without a magnetic field, it has no natural mechanism for emitting X-rays. In conjunction with data from the flyby of NASA's New Horizon spacecraft showing that Pluto's atmosphere is quite stable, the detection represents an interesting challenge to understand. For details see: http://chandra.harvard.edu/press/16_releases/press_091416.html

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



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Radiation Belts Sep 19 SNR1987A ACIS-S/HETG PSZ2_G278.79+08.54 ACIS-I CentaurusA ACIS-I Sep 20 MCG-03-58-007 ACIS-S ArLac (21 obs) HRC-I Sep 21 Mkn876 ACIS-S/HETG Radiation Belts IDCSJ1433.2+3306 ACIS-I ArLac (5 obs) HRC-S Sep 22 PSOJ334 ACIS-S ArLac (16 obs) HRC-S Sep 23 SNR1987A ACIS-S/HETG Radiation Belts Sep 24 MCG-03-58-007 ACIS-S 2MASSJ00240376+2626 ACIS-S Sep 25 Mkn876 ACIS-S/HETG G098.12+30.30 ACIS-I IDCSJ1433.2+3306 ACIS-I

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All spacecraft subsystems continued to support nominal operations.

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