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Operations CXO Status Report

Friday 5 March 2004 10.00am EST

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

On Mar 5 the OCC supported DSN in a software test of new D-5 software for use with the 26m dishes. The test was completed successfully.

Of note last week was the approval of a new mission planning model for predicting radiation belt entry and exit times. The new Chandra Radiation Model will allow more accurate predictions and is expected to result in ~2 hours per week or ~375Ks per year of additional observing time.

A Chandra press release was made on Mar 1 describing observations of powerful X-ray sources found in nearby galaxies that may represent a new class of objects. The sources, which are not as hot as typical neutron-star or black-hole X- ray sources, could be a large new population of black holes with masses several hundred times that of the sun. For details see:

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

Radiation Belts                     Mar 8
MACS911.2+1746         ACIS-I
Spica (Alpha Vir)      ACIS-S/LETG
HR 7012                ACIS-I       Mar 9 
NGC 1313 X-2           ACIS-S       Mar 10
2QZ J031056.9-3059     ACIS-S
RXCJ0528.9-3927        ACIS-I
Radiation Belts
NGC 3521               ACIS-S       Mar 11
NGC 3384               ACIS-S
LBQS 1203+1530         ACIS-S
M101                   ACIS-S
G21.5-09               ACIS-I       Mar 12
G21.5-09               HRC-I
G21.5-09               HRC-S
SDSS J132323.78-00     ACIS-S       Mar 13
Radiation Belts
M101                   ACIS-S
G21.5-09               ACIS-S       Mar 14


All spacecraft subsystems continued to support nominal operations.

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