Friday 25 November 2022 9.00am EST
During the last week Chandra completed the observing schedule as planned. Real-time procedures were executed on Nov 18 and 21 to update the on-board pointing control commandable parameters that specify the aspect camera search box size used for acquiring fiducial lights. This was necessary due to a thermally-driven alignment shift of the aspect camera. An additional real-time procedure was executed on Nov 18 to update two on-board stored command sequences that perform configuration steps for HRC observations. These updates are part of the effort to return to HRC science. Additional real-time procedures were executed on Nov 18-21 to dump OBC-A and -B memory as a follow-up to the patch. The dump will be used to update the baseline memory images maintained on the ground. Chandra passed through the 20th and 21st eclipses of the season on Nov 20 and 22 respectively, with nominal power and thermal performance. A Chandra image release was issued on Nov 21 describing a new sonification that turns X-ray data of "light echoes" captured by NASA's Chandra and Swift X-ray observatories into sound. These light echoes are around V404 Cygni, a binary system where a stellar-mass black hole is in orbit with a "normal" star. Periodically, material around the black hole will generate outbursts in light that propagate outward into space. These data help astronomers learn about the distribution of dust and gas clouds between V404 Cygni and Earth. For details see: https://chandra.harvard.edu/photo/2022/sonify6/ The schedule of targets for the next week is shown below. |
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Radiation Belts Nov 27 SNRG310.6-1.6 ACIS-S Nov 28 SDSSJ030903.86+0038 ACIS-S SNRG310.6-1.6 ACIS-S SDSSJ033549.22-0039 ACIS-S SNRG310.6-1.6 ACIS-S SDSSJ030903.86+0038 ACIS-S Nov 29 SNRG310.6-1.6 ACIS-S SDSSJ033549.22-0039 ACIS-S SNRG310.6-1.6 ACIS-S HR2142 ACIS-S MCXCJ0928.6+3747 ACIS-I SDSSJ110735.58+6420 ACIS-S Nov 30 CasA ACIS-I Radiation Belts WR25 ACIS-S/HETG GaiaDR234104534890 ACIS-S Dec 1 WR25 ACIS-S/HETG GaiaDR234106408870 ACIS-S WR25 ACIS-S/HETG GaiaDR233091708759 ACIS-S WR25 ACIS-S/HETG Abell2744 ACIS-I Dec 2 A399 ACIS-I Abell2744 ACIS-I CasA (3 obs) ACIS-I A399 ACIS-I Radiation Belts Dec 3 SDSSJ134341.99+2556 ACIS-S MCG+05-10-007 ACIS-I JWST-DTDF-1 ACIS-I CasA ACIS-I Dec 4 MCG+05-10-007 ACIS-I JWST-DTDF-1 ACIS-I Trumpler3 ACIS-I PSZ2G118.39+42.22 ACIS-I Trumpler3 ACIS-I
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All spacecraft subsystems except HRC continued to support nominal operations.
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