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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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