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Operations CXO Status Report

Friday 2 February 2007 9.00am EDT

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

A real-time procedure was completed on Jan 30 to reinitialize the flight software Thruster Command Processing subfunction to clear a benign overflow condition.

A real-time procedure was completed on Jan 31 to dump OBC-A memory as a follow-up to a recent unexpected battery disconnect glitch counter value. The dump indicated the expected zero value and confirmed suspicions that the non-zero value was likely a case of on-board telemetry corruption.

A Chandra image release was issued on Jan 31 of the supernova remnant G11.2-0.3. This SNR is circularly symmetric and contains a dense, rotating dead star at its center, representing a textbook case of what the remnant of an exploding star should look like after a few thousand years. For details see:

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

UGC 1378                ACIS-S       Feb 4
IGR J09026-4812         ACIS-S
E0102-72                ACIS-I
PSR J0108-1431          ACIS-S       Feb 5
BDSB2003+81             ACIS-I
YY Gem                  ACIS-S/HETG
Radiation Belts                      Feb 6
YY Gem                  ACIS-S/HETG  Feb 7
1RXS J175721.2-304      HRC-S        Feb 8
Jupiter                 ACIS-S
E0102-72 (2 obs)        ACIS-S
J0848-43                ACIS-I
NGC4618                 ACIS-S
NGC2244 Satellite       ACIS-I
Radiation Belts                      Feb 9
G1.9+0.3                ACIS-S
NGC 3299                ACIS-S       Feb 10
SDSS J1141+0219         ACIS-S
Jupiter                 ACIS-S
G14.4-0.0               ACIS-S
Sgr A*                  ACIS-I       Feb 11
E0102-72 (3 obs)        ACIS-I
IGR J07506-1547         HRC-I
E0102-72                ACIS-S


All spacecraft subsystems continued to support nominal operations.

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