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Operations CXO Status Report

Friday 31 July 2009 9.00am EDT

Operations CXO Status Report, 31 July 2009, 9.00am EDT

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

A real-time procedure was executed on July 27 to obtain MUPS pressure and temperature data at a higher rate to assist in diagnosing the cause of the drop in pressure readings. The same real-time procedure was executed on July 30.

Work continued on the fault tree analysis of the MUPS tank pressure reading drop, with focus on false readings from the pressure sensor or a leak.

The schedule of targets for the next week is shown below

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NGC6681 ACIS-S Aug 3 HNTau ACIS-S Aug 4 Radiation Belts NGC922 ACIS-S Aug 5 M82-SE ACIS-S M87 ACIS-S Aug 6 AXJ181915-1601 ACIS-S AXJ175404-2553 ACIS-S IGRJ17419-2802 ACIS-I IGRJ17314-2854 ACIS-I HESSJ1741-302 ACIS-I Radiation Belts Aug 7 SwiftJ195509.6+2614 ACIS-S G18.95-1.1 ACIS-I Aug 8 IGRJ17475-2253 HRC-I IGRJ17505-2644 HRC-I IGRJ17585-3057 HRC-I IGRJ17353-3539 HRC-I Aug 9 VelaPWN ACIS-S Arp293 ACIS-S

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All spacecraft subsystems continued to support nominal operations.

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