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Operations CXO Status Report

Friday 29 October 2010 9.00am EDT

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

A real-time procedure was executed on Oct 27 to perform a diagnostic dump of the Central Processing Electronics (CPE). A second real-time procedure was executed on Oct 28 to re-initialize the flight software Thruster Command Processing subfunction in order to prevent the occurrence of an overflow condition.

Preparations are complete for the start of the fall 2010 eclipse season beginning on Nov 2. This season contains 11 eclipses and will end on Nov 21.

A Chandra image release was issued on Oct 26 of the galaxy cluster 3C186. The new Chandra observation of 3C186 reveals a very distant galaxy cluster with a quasar and a "cooling core" at its center. Cooling cores are regions bright in X-ray emission where gas is cooling. Finding a system like this at such a great distance, 8 billion light years, is unusual and could provide insight into the triggering of quasars and the growth of galaxy clusters. For details see: Of note last week was the Chandra User Committee meeting held at the CXC on Oct 25-25.

The schedule of targets for the next week is shown below and includes a series of observations of the comet 103P/Hartley 2 and observations of J193239.6+382518, J192630.6+413314, J191016.9+392951, J192430.2+510146, J191438.6+502857, and J194016.3+463251, which were accepted as Director's Discretionary Time TOOs on Oct 20.

Radiation Belts Oct 30 CassiopeiaA ACIS-S Oct 31 3C357 ACIS-S G299.2-2.9 ACIS-I 3C258 ACIS-S Nov 1 3C79 ACIS-S 1RXSJ053051.9+521606 ACIS-S Nov 2 CassiopeiaA ACIS-S Radiation Belts G299.2-2.9 ACIS-I 3C89 ACIS-S Nov 3 3C93.1 ACIS-S Nov 4 4C31.04 ACIS-S NGC1514 ACIS-S 103P_HARTLEY_2A ACIS-S J114611.5+202355 ACIS-S J193239.6+382518 ACIS-S J192630.6+413314 ACIS-S Radiation Belts Nov 5 103P_HARTLEY_2A ACIS-S G299.2-2.9 ACIS-I J191016.9+392951 ACIS-S Nov 7 J192430.2+510146 ACIS-S A376 ACIS-I J191438.6+502857 ACIS-S J194016.3+463251 ACIS-S


All spacecraft subsystems continued to support nominal operations.

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