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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.

------------------------------------------
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

------------------------------------------

All spacecraft subsystems continued to support nominal operations.

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