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Operations CXO Status Report

Friday 29 August 2014 9.00am EDT

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

A real-time procedure was executed on Aug 28 to re-initialize the flight software Thruster Command Processing subfunction in order to prevent the occurrence of an overflow condition. A flight software patch was uplinked on Aug 28 to update the on-board gyro calibration misalignment matrix. Real-time procedures were executed on Aug 28 to dump OBC-A memory as a follow-up to the patch. The dump will be used to update the baseline memory image maintained on the ground.

A Chandra image release was issued on Aug 26 describing observations of the Eta Carinae double star system. It contains one of the biggest and brightest stars in our galaxy and is extremely volatile. This system has been observed by Chandra since its launch in 1999 and continues to reveal new clues about its nature and stellar winds through the X-rays that it generates. For details see: http://chandra.si.edu/photo/2014/etacar/

The schedule of targets for the next two weeks is shown below and includes an observation of SN 2011fh coordinated with Spitzer.



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Radiation Belts Sep 1 J002016.4-053126 ACIS-S 3C114 ACIS-S Sep 2 3C107 ACIS-S 30Doradus ACIS-I UGC12491 ACIS-S Sep 3 SDSSJ083902.97+4707 ACIS-S 3C41 ACIS-S Radiation Belts Sep 4 OQ280 ACIS-S SN2011fh ACIS-S 47Tuc ACIS-S Sep 5 IGRJ11014-6103 ACIS-I Radiation Belts Sep 6 Abell2256 ACIS-I Sep 7 G053.44-36.26 ACIS-I XTEJ1810-197 ACIS-S CentaurusA ACIS-I Sep 8 EtaCarinae ACIS-S 30Doradus ACIS-I J145533.6+044643 ACIS-S 1RXSJ181119.4-27593 ACIS-S Sep 9 Radiation Belts 47Tuc ACIS-S NGC7618 ACIS-S Sep 10 Radiation Belts Sep 11 3C292 ACIS-S Sep 12 3C277 ACIS-S SDSSJ111729.22+6140 ACIS-S EtaCarinae ACIS-S 30Doradus ACIS-I Sep 13 UGC12491 ACIS-S

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All spacecraft subsystems continued to support nominal operations.

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