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Operations CXO Status Report

Friday 13 May 2016 9.00am EDT

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

The results of the aspect camera dark (ACA) current calibration performed May 4 were nominal. The temperature-corrected warm pixel counts are consistent with recent mission trends. The latest value is slightly below the trend line and might indicate an annealing effect from the 2016:063 safe mode, but additional measurements are needed to confirm this.

A Chandra image release was issued on May 12 describing observations of Tycho's supernova remnant. Tycho belongs to a class of supernovas used to measure the expansion of the Universe so the details of these explosions are very important. For the first time, a movie has been made of the evolution of Tycho's supernova remnant. The movie includes X-rays observations from Chandra spaced out over a decade and a half. By combining the Chandra data with 30 years worth of observations with the VLA, scientists have learned new things about this remnant and its history. For details see: http://chandra.si.edu/photo/2016/tycho/

The schedule of targets for the next week is shown below and includes an observation of GRO J1750-27, which is a follow-up of a Target of Opportunity accepted 2015 May 11.



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MKW8 ACIS-I May 15 CBS311 ACIS-S May 16 MKW8 ACIS-I SDSSJ124230.58+5422 ACIS-S MCSNRJ05296653 ACIS-S Radiation Belts May 17 LBQS1442-0011 ACIS-S May 18 SgrAcomplex1 ACIS-I MCSNRJ05296653 ACIS-S SgrAcomplex1 ACIS-I SDSSJ135646.10+1026 ACIS-S May 19 Radiation Belts May 20 fcc148 ACIS-S fcc255 ACIS-S SPT-CLJ0640-5113 ACIS-I SPT-CLJ0459-4947 ACIS-I May 21 GROJ1750-27 ACIS-S GC-GBinterface(14 obs) ACIS-I ESO533-50 ACIS-S May 22 SPT-CLJ0459-4947 ACIS-I Radiation Belts

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All spacecraft subsystems continued to support nominal operations.

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