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Operations CXO Status Report

Friday 2 November 2001 5.30pm EDT

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

A real-time procedure was completed nominally on 31 Oct to recover from a latchup of the ACIS threshold crossing plane. The latchup resulted in the same pixel data being reported repeatedly for chips S2 and I3 and an assessment is underway to determine the cause of the event. The observation of HD 93497 was impacted by the event and will be rescheduled in a future load. Normal observations were resumed following the completion of the procedure.

Of note last week was the conduct of a communications test from the OCC to Chandra with the Deep Space Network 26-m automation system. The test was part of the planned DSN development work.

The schedule of observations for the coming week is shown below and includes a coordinated observation of NGC 3516 with XMM-Newton.

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Radiation Belts Nov 4 GRS 1758-258 HRC-I Nov 5 AX J1844-02 HRC-I IRAS20051-1117 ACIS-S BRI 2212-1626 ACIS-S Nov 6 ARP 222 ACIS-S Tololo 0109-383 ACIS-S 0453-68.5 ACIS-S SNR 1987A ACIS-S Radiation Belts Nov 7 2MASSJ171442+2602 ACIS-I Nov 8 AGX J170730+2353 ACIS-I NGC5866 ACIS-S 3C 427.1 ACIS-S CHVC125 ACIS-S LBQS 1205+1436 ACIS-S Nov 9 LBQS 1208+1535 ACIS-S MG J0414+0534 ACIS-S Betelgeuse ACIS-I M31 Nucleus ACIS-I 2MASSJ222221+1959 ACIS-I 2237+0305 ACIS-S LBQS 2350-0045A ACIS-S LBQS 0019+0107 ACIS-S Nov 10 Radiation Belts AX J0836.2+5538 ACIS-S AX J0836.6+5529 ACIS-S NGC 3516 ACIS-S/HETG

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All spacecraft subsystems continued to operate nominally.

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