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Operations CXO Status Report

Friday 18 February 2011 9.00am EST

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

A real-time procedure was executed on Feb 15 to reconfigure the battery reconditioning resistors to adjust the battery trickle charge currents. An associated flight software patch was uplinked to update the EPS fault detection logic on the Reconditioning Resistor Relay configuration. These changes are in response to expected efficiency drops due to aging of the solar arrays. Additional, real-time procedures were executed on Feb 15-16 to dump OBC-A memory as a follow-up to the Reconditioning Resistor Relay configuration patch. The dump will be used to update the baseline memory image maintained on the ground.

The schedule of targets for the next week is shown below

IGRJ17597-2201 HRC-I Feb 20 IGRJ18219-1347 HRC-I IGRJ18293-1213 HRC-I J1840-14 ACIS-S ACTJ0237-4939 ACIS-I Radiation Belts Feb 21 NGC4472 ACIS-S 1RXSJ143157.4+37063 ACIS-S Feb 23 HD179958 ACIS-S Radiation Belts Feb 24 SN1979C ACIS-S NGC4649 ACIS-S RXJ1131-1231 ACIS-S Feb 25 IGRJ12134-6015 HRC-I Feb 26 ACTJ0217-5245 ACIS-I 1RXSJ044549.6-57261 ACIS-S ACTJ0707-5522 ACIS-I Radiation Belts 1RXSJ095703.2+56313 ACIS-S Feb 27 1FGLJ0214.1+6020 ACIS-I M31 HRC-I J094646.94+392719.02 ACIS-S SDSSJ1109+3736 ACIS-S UrsaMinor ACIS-S


All spacecraft subsystems continued to support nominal operations.

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