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Operations CXO Status Report

Friday 12 October 2012 9.00am EDT

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

Chandra passed through the 24th and 25th eclipses of the season on Oct 5 and 8 respectively, with nominal power and thermal performance. A real-time procedure was executed on Oct 8 to set the short eclipse flag to "true" in preparation for the 26th and final eclipse of the season. Chandra passed through this final eclipse on Oct 11, with nominal power and thermal performance. Real-time procedures were executed on Oct 11 to set the short eclipse flag to "false", to disable SCS-29, and to dump and clear the EPS glitch counters as post-eclipse season actions.

A Chandra image release was issued on Oct 10 with composite images of four planetary nebulae using Chandra and Hubble data. A planetary nebula results when a star like the sun becomes a red giant and sheds its outer layers. The diffuse X-ray emission seen with Chandra is caused by shock waves as a wind from the hot remnant of the star collides with the ejected atmosphere. For details see:

Of note last week was the Chandra User Committee meeting held at the CXC on Oct 10-11.

The schedule of targets for the next week is shown below and includes observations of Eta Car coordinated with HST, an observation of SDSS J101246.59+061604.7 coordinated with the EVLA,a and observations of Sgr A* coordinated with NuSTAR, Keck, VLT, SMA, CSO, CARMA, ALMA, EHT, HESS, and ATCA.

GJ191 ACIS-S Oct 14 SDSSJ101246.59+0616 ACIS-S CDCet ACIS-S HD25823 ACIS-S 4C73.18 ACIS-S Oct 15 Crab ACIS-S Abell2219 ACIS-I SgrA* ACIS-S/HETG Oct 16 Radiation Belts SgrA* ACIS-S/HETG SN2005cp ACIS-S Oct 18 SgrA* ACIS-S/HETG SDSSJ1227+6803 ACIS-S Radiation Belts Oct 19 RXCJ0510.7-0801 ACIS-I EtaCar ACIS-S/HETG Oct 19 2MASXJ04234080+0408 ACIS-S Oct 20 SPT-CLJ0106-5943 ACIS-I HD28843 ACIS-S EtaCar ACIS-S/HETG HD204313 ACIS-S Oct 21


All spacecraft subsystems continued to support nominal operations.

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