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Operations CXO Status Report

Friday 11 April 2008 8.30am EDT

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

A real-time procedure was conducted on Apr 7 to permanently turn off the ACIS detector housing heater. The decision follows a series of cooling tests that indicate that the turn-off will reduce the thermal load on the ACIS focal plane due to the overall increasing heating trends of the Observatory and relieve mission planning constraints.

Of note last week was the Chandra User Committee meeting held at the CXC on Apr 9-10.

A Chandra image release was issued on Apr 9 of the energetic jets emitting from the young star DG Tau. The image shows the first double-sided X-ray jet ever detected from a young star. A similar jet may have been launched from the young Sun and could have had a significant impact on the early solar system. For details see: http://chandra.harvard.edu/photo/2008/dgtau/

The schedule of targets for the next week is shown below.

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RX J1131-1231 ACIS-S Apr 14 M86 tail ACIS-I 3C213.1 ACIS-S Apr 15 M86 head ACIS-I S27 ACIS-S H1821+643 ACIS-S HR 5999 ACIS-I Apr 16 AX J155831-5334 ACIS-S Radiation Belts NGC 4388 ACIS-S/HETG Radiation Belts Apr 19 Cyg X-1 ACIS-S/HETG S28 ACIS-S NGC 4710 ACIS-S Apr 20 S02 ACIS-S Cyg X-1 ACIS-S/HETG S31 ACIS-S Capella ACIS-S/HETG SN 1979C ACIS-S Apr 21 H1821+643 ACIS-S

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All spacecraft subsystems continued to support nominal operations.

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