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Operations CXO Status Report

Friday 8 February 2008 8.00am EST

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

Chandra passed through a 30 minute lunar eclipse on Feb 6 with nominal power and thermal performance. A real-time procedure was run to uplink a contingency command load to activate a set of load heaters prior to the eclipse after a review of the onboard loads indicated that the commanding had not been included as planned. A review is underway to understand why the commanding was not included and identify future corrective action.

Real time procedures were executed on Feb 5 and 6 to set the short eclipse flag to "short" prior to the eclipse and then back to the default "medium" setting following the eclipse. SCS-29 was also disabled on Feb 6 following the eclipse.

A real-time procedure was executed on Feb 7 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer.

A Chandra image release was issued on Feb 5 of the elliptical galaxy NGC 1132. The combined Chandra and Hubble image shows the hot, diffuse gas detected by Chandra and a giant foreground elliptical galaxy, plus numerous dwarf galaxies in its neighborhood, and many much more distant background galaxies detected by Hubble. For details see: http://chandra.harvard.edu/photo/2008/ngc1132/

The schedule of targets for the next week is shown below and includes an observation of M87 coordinated with HST.

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J1020+4831 4C+48.2 ACIS-S Feb 11 SDSS J1004+4231 ACIS-S SDSS J085641.58+42 ACIS-S IGR J07295-1329 ACIS-I RXCJ1023.8-2715 ACIS-S 1062 ACIS-S Feb 12 1661 ACIS-S 759 ACIS-S 1279 ACIS-S 1030 ACIS-S 355 ACIS-S Radiation Belts Carina South Pilla ACIS-I Feb 13 NGC 4261 ACIS-S 654 ACIS-S Feb 14 369 ACIS-S 1475 ACIS-S Feb 15 NGC 4571 ACIS-S IGR J18259-0706 ACIS-S IGR J18256-1035 ACIS-S IGR J18214-1318 ACIS-S Radiation Belts Carina South Pilla ACIS-I Feb 16 UGC 4203 ACIS-S UGC 4203 ACIS-S UGC 4203 ACIS-S Carina South Pilla ACIS-I IGR J18193-2542 ACIS-S AX J183607-0756 ACIS-S Feb 17 AX J181705-1607 ACIS-S AX J183518-0754 HRC-I IGR J18490-0000 HRC-I IGR J18134-1636 ACIS-I M87 ACIS-S NGC 4736 ACIS-I 3CRR 270.1 ACIS-S 3CRR 266 ACIS-S

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All spacecraft subsystems continued to support nominal operations.

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