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Friday 18 November 2011 9.00am EST
During the last week Chandra completed the observing schedule as planned. A flight software patch was uplinked on Nov 17 to update the telescope forward thermal enclosure radiator and vent maximum temperature health-check threshold. The update is in response to increasing temperatures due to degradation of the Observatory's thermal covers during the mission and higher heating from the Earth due to a decreasing perigee altitude. A Chandra press release was issued on Nov 17 describing observations of the black hole Cygnus X-1 with Chandra and radio, optical and other X-ray telescopes. Cygnus X-1 is a black hole about 15 times the mass of the Sun in orbit with a massive blue companion star. The combined data have revealed the spin, mass, and distance of this black hole more precisely than ever before. For details see: http://chandra.si.edu/press/11_releases/press_111711.html The schedule of targets for the next week is shown below and includes an observation of GRB 111117A, which was accepted as a Target of Opportunity on Nov 17. |
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SDSSJ0140-0839 ACIS-S Nov 20
IGRJ18490-0000 HRC-S
PGC31499 ACIS-S
GRB111117A ACIS-S
Radiation Belts
M31 HRC-I Nov 21
M37 ACIS-I
Radiation Belts Nov 23
ACTJ0215-5212 ACIS-I
NGC6781 ACIS-S Nov 24
SPT-CLJ2035-5251 ACIS-I
M31BHXN ACIS-I
SDSSJ1639+2824 ACIS-S
B1422+231 ACIS-S
1E1207.4-5209 ACIS-S Nov 25
HD22470 ACIS-S
SPT-CLJ2031-4037 ACIS-I
NGC4292 ACIS-S
A1914_Field4 ACIS-I
Radiation Belts Nov 26
SGR0418+5729 ACIS-S
G12-11 ACIS-I Nov 27
G12-18 ACIS-I
Crab ACIS-S
SDSSJ0303-0023 ACIS-S
3c67 ACIS-S
J0023+09 ACIS-S Nov 28------------------------------------------
All spacecraft subsystems continued to support nominal operations.
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Revised: July 08, 2022