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Operations CXO Status Report

Friday 2 March 2007 10.00am EST

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

Of note last week was the approval of a change to the EPHIN thermal model to ensure more accurate predictions during mission planning. This follows several cases where the measured temperature exceeded the predictions for certain attitudes, e.g., 115 deg F cf 110 deg F. The change will place additional constraints on mission planning flexibility however will minimize the probability of exceeding the EPHIN temperature limit (120 deg F).

A composite Chandra image release was issued on March 1 of a series of 5-hour exposures of Jupiter taken in preparation for the New Horizons flyby en route to Pluto on Feb 28. The purpose of the Chandra observations is to study the powerful X-ray auroras observed near the poles of Jupiter. For the image and further details see: http://chandra.harvard.edu/photo/2007/jupiter/

The schedule of targets for next week is shown below and includes an observation of Jupiter coordinated with XMM-Newton and New Horizons.

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Radiation Belts Mar 5 GRB070125 ACIS-S TWA14 ACIS-S/LETG Mar 6 IC 2545 ACIS-S 2MASX J134909+0404 ACIS-S Mar 7 Abell 1689 ACIS-I Jupiter ACIS-S Radiation Belts Z5768 ACIS-I Mar 8 Group ID 1404 ACIS-S Jupiter ACIS-S TWA14 ACIS-S/LETG UGC 5460 ACIS-S Mar 9 Cas A ACIS-S Cas A HRC-I M31 ACIS-I Mar 10 Cas A ACIS-I 1239+376 ACIS-S Radiation Belts Sn 1987A ACIS-S/HETG

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All spacecraft subsystems continued to support nominal operations.

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