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Operations CXO Status Report

Friday 14 May 2004 8.30am EDT

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

An angular momentum dump was performed from the daily loads on 8 May and completed with nominal performance. Future dumps will be conducted from the loads and will not require real-time commanding.

A real-time procedure was completed on May 13 to update the on-board ephemeris.

A new version of the Off-Line System (OFLS) ground software was installed for operational use on May 13. Version 10.3 includes improved maneuver activity timing for the science instruments and mechanisms, better moving target processing, and incorporates a new radiation model (for later use).

An image release of the active galaxy M87 was made on May 10 showing the central jet surrounded by nearby bright arcs and dark cavities in the hot atmosphere. The image combines two Chandra observations and also shows faint ring and plume structures far out from the galactic center. For details see: http://chandra.harvard.edu/photo/2004/m87/

The schedule of targets for the next week is shown below and includes two full orbit HETG observations of the active galaxy MCG-6-30-15.

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Sculptor Dwarf Sph ACIS-S May 17 Abell S1063 ACIS-I A2657 ACIS-I NGC 2787 ACIS-S F1525-7250 ACIS-S May 18 Radiation Belts MCG-6-30-15 ACIS-S/HETG Radiation Belts May 21 MCG-6-30-15 ACIS-S/HETG May 21 M31-Center ACIS-I May 23

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All spacecraft subsystems continued to support nominal operations.

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