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Operations CXO Status Report

Friday 20 September 2002 8.00am EDT

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

A real-time procedure was completed on Sept 16 to update the on-board ephemeris. Of note last week was the release to operations of OFLS 9.4. The ground system software update provides additional control over star catalog commanding when generating command loads.

Two press releases were issued last week. The first on Sept 13 reports the discovery of 6 times the expected number of galactic-scale black holes in an observation of a galaxy cluster. The second on Sept 19 was issued as a NASA HQ Space Science Update and describes a remarkable series of images of the Crab nebula combined to make a 'movie'. The sequence shows bright wisps emanating from the inner ring around the pulsar. For detail see: http://chandra.harvard.edu/press/02_releases/press_091302.html. http://chandra.harvard.edu/press/02_releases/press_091902.html.

The observing schedule for next week is shown below and includes an observation of 4U 1746-37 coordinated with RXTE.

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HD1685 ACIS-I Sep 23 RXJ1856.5-3754 HRC-I Radiation Belts NGC 5904 ACIS-S Sep 24 XTE J1550-564 (Jet) ACIS-S AX J1531.9+2420 ACIS-S HS 1422+4224 ACIS-S Sep 25 Q1815+614 ACIS-S 4C41.17 ACIS-S Radiation Belts Sep 26 4C41.17 ACIS-S 1AXG J135629+7724 ACIS-I Sep 27 HS 0017+2116 ACIS-S SDSSJ023137-072854 ACIS-S 2MASSW0036+18 ACIS-S 4U 1746-37 ACIS-S/HETG Sep 28 Radiation Belts PSR J1105-6107 ACIS-S Sep 29

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All spacecraft subsystems continued to operate nominally.

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