Operations CXO Status Report 26 July 2002

During the last week, Chandra completed the observing schedule as planned – and passed 3 years of operations on July 23!

A Chandra press release was issued on July 23 describing observations of a nearby dwarf galaxy emitting oxygen and other “heavy” elements into intergalactic space. The observation supports the idea that dwarf galaxies may be responsible for most of the heavy elements found between the galaxies. For more details and the image, see: http://chandra.harvard.edu/press/02_releases/press_072302.html

Approval was given to uplink a software patch to the B-side OBC to update the gyro scale-factor and alignment matrix to match the A-side values uplinked on July 16. The uplink is planned for next week.

The observing schedule for the next week is shown below and includes a phase constrained observation of Cyg X-1.

0

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2052-474                ACIS-S       Jul 28
GS 1826-238             ACIS-S/HETG  Jul 29
Radiation Belts
Cyg X-1                 ACIS-S/HETG  Jul 30
Cyg OB2 8A              ACIS-S/HETG
IM PEG                  ACIS-S/HETG  Jul 31
1H 0414+009             ACIS-S/HETG
Radiation Belts                      Aug 1
1H 0414+009             ACIS-S/HETG  Aug 2
WPVS 007                ACIS-S
2101-490                ACIS-S
3C 391                  ACIS-S
3C346                   ACIS-S       Aug 3
Radiation Belts                      Aug 4
M28                     ACIS-S
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All spacecraft subsystems continued to operate nominally.