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Operations CXO Status Report

Friday 27 February 2015 8.00am EDT

During the last week the observing schedule was replanned to incorporate an observation of NGC 6440, which was accepted as a Target of Opportunity on Feb 19. A portion of a scheduled observation of HATLASJ091043.0-000322 was impacted by the replan and will be rescheduled in a future week.

A Chandra press release was issued on Feb 25 describing observations of an intriguing object found in one of the spiral arms of the galaxy NGC 2276. The source, called NGC 2276-3c, appears to be an intermediate-mass black hole. According to X-ray and radio data, NGC 2276-3c contains about 50,000 times the mass of the Sun. For details see: http://chandra.si.edu/press/15_releases/press_022515.html

Of note this week was the release on Feb 23 of CALDB 4.6.7. This update includes ACIS time-dependent gain corrections for the period Nov 2014 through Jan 2015, a header correction for the 2008 HRC-S QE-uniformity file, and retirement of ACIS provisional time-dependent gain corrections for 2013. For details see: http://cxc.cfa.harvard.edu/caldb/downloads/Release_notes/CALDB_v4.6.7.html

The replanned schedule of targets for the next week is shown below and includes an observation of GJ176 coordinated with HST.



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E0102-72S3 ACIS-S Feb 28 NGC6440 HRC-S Mar 1 HD206267 ACIS-S/HETG J113121.4+333447 ACIS-I 3C272 ACIS-S GJ176 ACIS-S Mar 2 FBQSJ090313.9+31201 ACIS-S PGC032873 ACIS-S Radiation Belts HD41004 ACIS-S Mar 3 3C277 ACIS-S MKN421 ACIS-S/LETG Mar 4 SDSSJ0830+1654 ACIS-S NGC1433 ACIS-I Radiation Belts Mar 5 MKN421 ACIS-S/LETG A1902 ACIS-I Mar 6 E0102-72S3 ACIS-S RCW38/IRS2 ACIS-S/HETG A1795-A ACIS-I Mar 7 E0102-72S3 ACIS-S Radiation Belts Mar 8

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All spacecraft subsystems continued to support nominal operations.

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