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Friday 26 October 2001 10.30am EDT
| Last week the observing schedule was halted twice due to high radiation associated with solar flare activity. The loads were halted on Oct 21 at 11:38am EDT, resumed on Oct 23 at 4:00am EDT and halted a second time on Oct 25 at 7:17pm. In both cases the loads were halted through a ground command to execute the SI Safing SCS 107 since the projected orbital radiation dose was significantly higher than the threshold allowed for ACIS. The loads are being replanned to resume on Oct 27 at 6:40am EDT. Observations of Puppis N Knot, PSS 0902+1640 and PSR B0833-45 were impacted by the first event, and observations of MG J0414+0534, HS0218+3707, PSS0134+3307, 2MASSJ222202+1952, M17 and SAX J1747.0-285 were impacted by the second event. These targets will be rescheduled in a future load.
A Chandra press release was issued on 18 Oct describing observations of the Herbig-Haro object HH2 in the Orion Nebula. The results show this type of object does produce X-rays and proves a theory of how the objects form. For the details see: http://chandra.harvard.edu/press/01_releases/press_101801.html. The schedule of observations starting from the re-plan intercept through the coming week is shown below. |
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SN1998BW ACIS-S Oct 27 Radiation Belts BHC Transient ACIS-S/HETG Oct 28 HD 93497 ACIS-S/HETG Oct 29 RR Pic ACIS-S IRAS 05189-2524 ACIS-S Oct 30 Radiation Belts IRAS 20551-4250 ACIS-S Oct 31 LBQS 0025-0151 ACIS-S M31 HRC-I 53W002 Cluster ACIS-S Nov 1 Markarian 266 ACIS-S UGC 4305 ACIS-S Nov 2 Radiation Belts S106 FIR ACIS-I NGC 3665 Group ACIS-I Nov 3 ABELL 611 ACIS-S ZWICKY 2701 ACIS-S Nov 4 Puppis Bright E Knot ACIS-S PSR0628-28 ACIS-S
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All spacecraft subsystems continued to operate nominally.
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Revised: July 08, 2022