Friday 20 September 2019 9.00am EDT
During the last week Chandra completed the observing schedule as planned. Real-time procedures were executed on Sep 13 to turn off gyros A1 and B2 and SPE-B in order to reduce the temperature of the IRU baseplates. These units had been activated on Sep 7 to evaluate gyro performance. Real-time procedures were executed Sep 16 to perform full-frame dark current readouts of the Aspect Camera Assembly CCD. Of note this week was the release on Sep 13 of CALDB 4.8.4.1. This update includes corrections to ACIS time-dependent gain corrections for the period May 2019 through Sep 2019. For details see: http://cxc.cfa.harvard.edu/caldb4/downloads/Release_notes/CALDB_v4.8.4.1.html. The schedule of targets for the next week is shown below. |
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Radiation Belts Sep 23
PSZ2G181.06+48.47 ACIS-I
Radiation Belts Sep 24
PSRJ1016-5857 ACIS-I
CL0152-13 ACIS-I Sep 25
N132D ACIS-S Sep 26
CL0152-13 ACIS-I
Radiation Belts
Abell1156 ACIS-I Sep 27
SN2017hcc ACIS-S
N132D ACIS-S
XLSSC122 ACIS-I Sep 28
N132D ACIS-S
SDSSJ0825+1155 ACIS-S
XLSSC122 ACIS-I
Radiation Belts Sep 29------------------------------------------
All spacecraft subsystems continued to support nominal operations.
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Revised: July 08, 2022