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Operations CXO Status Report

Monday 27 March 2000 11.30am EST

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

The observatory passed through the 11th and 12th eclipses of the Spring 2000 season with nominal power and thermal performance. The eclipses were both medium duration (40-100 min) and occurred on 3/22 at 7:36pm EST (47.9 min), 3/25 at 11:08am EST (42.7 min). The final eclipse of the season will occur at 2:43am on 3/28.

A real-time procedure was completed on 3/25 to uplink a software constant patch to configure the Electrical Power System software for the final eclipse of the spring 2000 season. The eclipse will be a short eclipse ( < 40 minutes). A second patch will be uplinked following this eclipse to configure for the solstice period.

The scheduled observations for the next week are:

FK COM/HD 117555       ACIS-S/HETG     Mar 26

 NGC 4826               ACIS-S          Mar 27

 GX 349+2               ACIS-S/HETG

 Radiation Belt

 Eclipse-13 32.7 min                    Mar 28

 Zeta Pup               ACIS-S/HETG

 Sgr B2                 ACIS-I          Mar 29

 Radiation Belt                         Mar 30

 QB 1429-008            ACIS-I          Mar 31

 Abell 2219             ACIS-S

 B2 0331+39             ACIS-S

 Algol                  ACIS-S/HETG

 Trapezium Cluster      ACIS-I          Apr  1

 Radiation Belt


The spacecraft subsystems continued to operate nominally.

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