Friday 20 March 2020 9.00am EDT
During the last week Chandra completed the observing schedule as planned. Real-time procedures were executed on Mar 13, Mar 14, Mar 15, and Mar 17 to dump OBC-A and -B memory as a follow-up to the flight software patch uplinked last Friday. The dump will be used to update the baseline memory images maintained on the ground. A Chandra press release was issued on Mar 19 describing analysis of Chandra observations of the Perseus galaxy cluster. Researchers used the Chandra data to try to detect the presence of axions. The resulting non-detection puts a very stringent limit on the maximum mass of the axion. For details see: https://chandra.si.edu/press/20_releases/press_031920.html The schedule of targets for the next week is shown below and includes an observation of PSO J047.4479+27.2993, which was accepted as a Director's Discretionary Time Target of Opportunity on Dec 12. |
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ArLac (21 obs) HRC-I Mar 22 M87 HRC-I Mar 23 Spiderweb ACIS-S SNR1987A HRC-S /LETG Radiation Belts Mar 24 PSOJ047.4479+27.299 ACIS-S Gd394 HRC-S /LETG Mar 25 M87Halo3 ACIS-S PSS1326+0743 ACIS-S SgrA* ACIS-S Mar 26 Spiderweb ACIS-S Radiation Belts Mar 27 NGC4438 ACIS-S H1821+643 HRC-S /LETG NGC4438 ACIS-S PSO167-13 ACIS-S Mar 28 SNR1987A HRC-S /LETG PSO167-13 ACIS-S Radiation Belts Mar 29
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All spacecraft subsystems continued to support nominal operations.
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