Friday 8 July 2022 9.00am EDT
During the last week Chandra completed the observing schedule as planned. Real-time procedures were executed on Jul 1, Jul 2, and Jul 3 to dump OBC-A and -B memory as a follow-up to the flight software patch on Jun 30 that updated SCS 31, a stored command sequence used to reconfigure Chandra into Safe Mode, to switch from high power transmitter mode to low power. The dump will be used to update the baseline memory images maintained on the ground. Another real-time procedure was executed on Jul 5 to check out HRC-I operation on the A-side electronics. As part of the continued evaluation of the HRC, the HRC 15V LVPS was successfully powered on for approximately 7 ks and an HRC-I science observation of Cassiopeia A of approximately 5 ks was completed. Additional real-time procedures were executed on Jul 7 to perform a routine self-check of the Electrical Interface Assembly (EIA) Sequencer and to perform a diagnostic dump of the Control Processing Electronics (CPE). The schedule of targets for the next week is shown below and includes an observation of USco, which was accepted as a Target of Opportunity on Jul 5, observations of HR5907 coordinated with NuSTAR, and an observation of Circinusgalaxy coordinated with IXPE. |
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Radiation Belts Jul 10 hetej1900.1-2455 ACIS-S DSTuc ACIS-S CentaurusA ACIS-S/HETG Jul 11 hetej1900.1-2455 ACIS-S Circinusgalaxy ACIS-S HR5907 ACIS-S CentaurusA ACIS-S/HETG Jul 12 PSZ2G225.93-19.99 ACIS-I Abell2744 ACIS-I GDH4 ACIS-I Jul 13 Radiation Belts GDH4 ACIS-I GDH4 ACIS-I SN2009fi ACIS-S hetej1900.1-2455 ACIS-S NGC3081 ACIS-S Jul 14 USco ACIS-S/LETG GDH4 ACIS-I CSWA26 ACIS-S Jul 15 KeplerSNR ACIS-S/HETG Cen-AMM-UCD1 ACIS-S Radiation Belts Jul 16 PSZ2G162.49-71.98 ACIS-I KeplerSNR ACIS-S/HETG NGC3081 ACIS-S GDH4 ACIS-I S41427+543 ACIS-S 2XMMJ182855.9-09541 ACIS-S HR5907 ACIS-S Jul 17
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All spacecraft subsystems except HRC continued to support nominal operations.
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