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Operations CXO Status Report

Friday 21 August 2009 9.00am EDT

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

A real-time procedure was conducted on August 14 to turn off the Science Instrument Module FA6 heater. Turning off the FA6 heater is expected to create additional margin in control of the ACIS focal plane temperature. The heater will remain off while the spacecraft attitude is restricted to those that minimize the temperatures of the MUPS tank and fill panel, which are the attitude for which having the heater off is expected to have the greatest effect.

A real-time procedure was completed on August 19 to update the on-board ephemeris.

The schedule of targets for the next week is shown below and includes the first use of a grating since the HETG retract switch anomaly of July 7.

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Sersic159-03AS11 ACIS-I Aug 24 RXJ2014.8-2430 ACIS-S Aug 25 HELLAS2XMM26900039 ACIS-S Radiation Belts M15 ACIS-S Aug 26 Altair HRC-S/LETG J2214.8+3002 ACIS-I Aug 27 M15 ACIS-S Aug 28 Radiation Belts SDSSJ235833.20+0034 ACIS-S IRAS01298-0744 ACIS-S SDSSJ0104+0003 ACIS-I Aug 29 SPT-CL0000-5010 ACIS-I CygnusLoopNERimr ACIS-S J2241.7-5239 ACIS-I Aug 30 Arp86 ACIS-S SPT-CL2332-5052 ACIS-I UGC772 ACIS-S HR8799 ACIS-S

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All spacecraft subsystems continued to support nominal operations.

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