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Operations CXO Status Report

Friday 29 July 2008 8.00am EDT

During the last week the observing schedule was replanned to include a 40 Ks observation of the source SGR 0501+4516 that was accepted as a fast turn-around Target Of Opportunity (TOO) on Aug 22. Loads were replanned and uplinked on Aug 23. Observations of SDSS J0148+0001, XTE J1701-407 and Abell 2187 were impacted by the TOO and will be rescheduled in a later load.

A Chandra image release was issued on Aug 27 of the galaxy cluster MACS J0025.4-1222. Like the Bullet Cluster this cluster shows a clear separation between dark and ordinary matter. This helps answer a crucial question about whether dark matter interacts with itself in ways other than via gravitational forces. For details see:

The schedule of targets for the next week is shown below and includes an observation M31 coordinated with HST.

VPuppis HRC-I Sep 1 2345-167 ACIS-S HE0047-1756 ACIS-S M31 ACIS-I NGC7673 ACIS-S AR Lac (21 obs) HRC-S Sep 2 Radiation Belts Carina East ACIS-I Sep 3 AXJ1820.5-1434 ACIS-I Ark564 ACIS-S/HETG Radiation Belts Sep 5 Carina East ACIS-I AXJ1740.1-2847 ACIS-I Sep 6 Ark564 ACIS-S/HETG AR Lac (21 obs) HRC-I Sep 7


All spacecraft subsystems continued to support nominal operations.

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