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Operations CXO Status Report

Friday 16 January 2004 7.00am EST

Last week the observing schedule was halted due to high radiation associated with solar flare activity. The loads were halted on Jan 8 at 8:45am EST through a ground command to execute the SI Safing SCS 107. This ensured that the accumulated radiation dose for ACIS remained below the allowed threshold. Loads were restarted at 7:26pm EST on Jan 10. Observations of 3C 388 and G63.7+1.1 (total 61 Ks) were impacted by the event and will be rescheduled in a later load.

Harvey Tananbaum and Martin Weisskopf were jointly awarded the 2004 Bruno Rossi Prize of the High Energy Astrophysics Division of the American Astronomical Society on Jan 7. The citation recognizes their vision, dedication, and leadership in the development, testing, and operation of the Chandra X-ray Observatory. We all offer Harvey and Martin our congratulations!

On Jan 15 the ground team completed the installation to operations of an update to the On-line System (version 3.9.4). The update includes a number of performance data handling improvements.

The schedule of observations for the next week is shown below and includes observations of Saturn and the Earth. Also included in the loads is the Jan 18 commanding for the first of seven eclipses in the 2004 Winter eclipse season.

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RX J0806.3+1527 ACIS-S Jan 18 RX J0720.4-3125 ACIS-S 1055+201 ACIS-S M101 ACIS-S Jan 19 HR 1610 ACIS-I Saturn ACIS-S Radiation Belts Jan 20 A773 ACIS-I Jan 21 M101 ACIS-S Earth HRC-I MS30.7 ACIS-S Jan 22 GRB031203 ACIS-S Radiation Belts A1795 ACIS-I Jan 23 M101 ACIS-S 3C264 ACIS-S Jan 24 Earth HRC-I NGC 7714 ACIS-S F1525-5541 ACIS-S Jan 25

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All spacecraft subsystems continued to support nominal operations.

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