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Operations CXO Status Report

Friday 12 August 2011 9.00am EDT

A real-time procedure was executed on Aug 5 to perform a manually commanded momentum dump. This dump was required since a scheduled momentum dump was missed due to the high-radiation event of Aug 4.

A real-time procedure was executed on Aug 6 verify that the radiation environment as observed by the HRC anticoincidence shield had decreased to an acceptable level and a replanned schedule was started. Chandra completed this observing schedule as planned.

A Chandra image release was issued on Aug 11 describing VV 340, a pair of interacting galaxies that are destined to merge. The Chandra data shows that the northern galaxy contains an obscured and rapidly growing supermassive black hole. Data from other observatories shows that the two galaxies are evolving at different rates. For details see: http://chandra.si.edu/photo/2011/vv340/

The schedule of targets for the next week is shown below and includes an observation of MAXIJ1659-152, from a series of Target of Opportunity observations accepted on Apr 5, and an observation of the Crab, from a series of Director's Discretionary Time TOO observations accepted on Dec 14.



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SPT-CLJ2325-4111 ACIS-I Aug 14 RXCJ0605_Field2 ACIS-I HD120066 ACIS-S NGC3921 ACIS-S Radiation Belts Crab ACIS-S Aug 15 J2256-10 ACIS-S G072.80-18.72 ACIS-I MAXIJ1659-152 ACIS-S A133D ACIS-I Aug 16 SPT-CL2034-5936 ACIS-I Radiation Belts Aug 17 Oph1622-2405 ACIS-S Aug 18 W49B ACIS-S Radiation Belts Aug 20 Oph1622-2405 ACIS-S W49B ACIS-S Aug 21

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All spacecraft subsystems continued to support nominal operations.

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