Friday 4 April 2025 9.00am EDT
During the last week Chandra completed the observing schedule as planned. A real-time procedure was executed on Mar 29 to uplink a flight software patch that returned functionality to the Attitude Error/ Rate Error safing monitor while in Normal Sun Mode. This monitor was previously disabled in Normal Sun Mode due to incompatibility with offset pitch angles. Additional real-time procedures were executed on Mar 29, 30, and 31 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. Further real-time procedures were executed on Apr 2 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). A Chandra press release was issued on Mar 31 announcing the selection of 24 new Fellows for the NASA Hubble Fellowship Program (NHFP). The program enables outstanding postdoctoral scientists to pursue independent research in any area of NASA Astrophysics, using theory, observation, experimentation, or instrument development. Each fellowship provides the awardee with up to three years of support. The Space Telescope Science Institute administers the NHFP on behalf of NASA, in collaboration with the Chandra X-ray Center and the NASA Exoplanet Science Institute. For details, see: https://chandra.harvard.edu/press/25_releases/press_033125.html The schedule of targets for the next week is shown below and includes an observation of M84, which was accepted as a Director's Discretionary Time Target of Opportunity on Feb 3 and is coordinated with EHT. |
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SN2001em HRC-I Apr 7 M84 ACIS-S UGC7408 ACIS-I Radiation Belts Apr 8 PSRJ0633+0632 ACIS-I NGC4731 ACIS-S NGC0685 ACIS-S NGC4731 ACIS-S NGC0685 ACIS-S Apr 9 NGC4731 ACIS-S NGC0685 ACIS-S NGC4731 ACIS-S UGC9511 ACIS-S Apr 10 Radiation Belts IGRJ17188-3008 ACIS-S CTS117 ACIS-S RCrA ACIS-I Apr 11 SextansA ACIS-S eRASSUJ130821.3+130 ACIS-S 1eRASSJ132500.6+123 ACIS-S B2.22207+29 ACIS-S NGC6537 HRC-I Apr 12 1eRASSJ135925.2-113 ACIS-S NGC3059 ACIS-S PSRJ1101-6101 ACIS-I Radiation Belts Apr 13 CentaurusA ACIS-I NGC7713 ACIS-I SextansA ACIS-S
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All spacecraft subsystems continued to support nominal operations.
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