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Operations CXO Status Report

Friday 19 October 2007 9.00am EDT

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

A real-time procedure was completed on Oct 17 to verify the value of the CPE warm start count. The count has remained unchanged at the nominal value of 1.

A real-time procedure was conducted on Oct 18 to swap to SSR-B in order to preserve data on SSR-A following a DSN anomaly. Approximately 5 hours of data were lost during the scheduled playback of data due to the anomaly and the SSR swap will allow the lost data to be replayed at a later pass.

A Chandra press release was issued on Oct 17 announcing the discovery of the most massive stellar-mass black hole. The black hole has a mass of 15.7 times that of the Sun and is part of a binary system in the galaxy M33. For details see:

The schedule of targets for the next week is shown below.

Radiation Belts Oct 21 NEW SGR ACIS-S NEW SGR ACIS-S Chandra Deep Field ACIS-I Oct 22 AX J163252-4746 HRC-I Oct 23 AX J163751-4656 HRC-I IGR J16479-4514 HRC-I AX J165420-4337 HRC-I XTE J1717-407 HRC-I SAX J1712.6-3739 HRC-I AX J172642-3540 HRC-I XTE J1728-295 HRC-I XTE J1805-295 HRC-I XTE J1752-280 HRC-I IGR J17331-2406 HRC-I IGR J17597-2201 HRC-I XTE J1812-230 HRC-I RXS J180824.5 HRC-I Chandra Deep Field ACIS-I Oct 24 AX J165217-4414 ACIS-S Oct 25 AX J170052-4210 ACIS-S AX J170444-4109 ACIS-S AX J170555-4104 ACIS-S AX J171910-3652 ACIS-S AX J172623-3516 ACIS-S AX J173518-3237 ACIS-S AX J173548-3207 ACIS-S Oct 26 AX J173628-3141 ACIS-S AX J175331-2538 ACIS-S AX J180816-2021 ACIS-S AX J181120-1913 ACIS-S AX J181213-1842 ACIS-S Sgr A* ACIS-I Radiation Belts Chandra Deep Field ACIS-I Oct 27 X Persei ACIS-I Oct 28


All spacecraft subsystems continued to support nominal operations.

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