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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.

------------------------------------------
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

------------------------------------------

All spacecraft subsystems continued to support nominal operations.

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