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

An aspect camera dark current calibration was performed from the on-board loads on Jul 10. Assessment of the data indicates nominal aspect camera performance and that the number of CCD warm pixels is increasing at the expected rate.

A Chandra image release was issued on Jul 11 describing an observation of the planetary nebula NGC 2392. A planetary nebula is a phase that results when a star like the sun becomes a red giant and sheds its outer layers. Our Sun will become a planetary nebula about 5 billion years from now. X-rays are produced by superheated gas around the dense, hot core of the star. For details see: http://chandra.si.edu/photo/2013/ngc2392/

The schedule of targets for the next week is shown below and includes an observation of Swift J174805.3-244637, which is part of an on-going Target of Opportunity monitoring series accepted on 2012 Sep 4.