During the last week the observing schedule was replanned to incorporate an observation of GRB170817A, which was accepted as a Target of Opportunity on Aug 20. Loads for the replanned schedule will be uplinked on Aug 25. A scheduled observation of J1342+0928 was impacted by the replan and will be will be rescheduled in a future week.

Of note this week was the release on Aug 18 of CALDB 4.7.6. This update includes ACIS time-dependent gain corrections for the period Feb 2017 through Jul 2017 and an update to the ACIS background. For details see: http://cxc.harvard.edu/caldb/downloads/Release_notes/CALDB_v4.7.6.html

The schedule of targets for the next week is shown below and includes an observation of PSR J1622-4950, which is a follow-up to a Target of Opportunity which was accepted on May 3 and is coordinated with NuSTAR, an observation of GRB170817A, which was accepted as a Target of Opportunity on Aug 23, and an observation of NGC 1313 X-1 coordinated with NuSTAR.