To:sot_shift from: Dan Schwartz date: 10 Apr 00 , 12:00noon EDT Subject: SOT shift report, Shift L262 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_10_2000_L262.txt. Shift L262. Start at 101:12:00 GMT = 08:00am 10 Apr EDT End 12:00 noon 10 Apr SOT Lead DAS (Times will be given in GMT on day 101. In general times are rough, not precise.) PLAN Finish running load APR0400b. Start load APR0900d. Do ACIS CTI measurements surrounding the perigee passage. Then ACIS-I observations of HD 37001, OBSID 020, and IC 443, OBSID 760; followed by a long ACIS-S observation of NGC 1569, OBSID 782. Next Contacts 101:11:40 to 13:40 101:21:00 to 22:15 102:06:30 to 08:30 102:15:45 to 16:25 102:22:50 to 23:50 103:09:20 to 11:20 EVENTS 11:40 AOS Status at AOS: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 0 RA = 85.995 deg DEC = 30.001 deg ROLL = 250.957 deg Format = 2 OBSID = 62088 (ACIS CTI) SIM FA = -467 SIM TSC = -99616 (HRC-S) HETG = OUT (80.2 deg) LETG = OUT (78.7 deg) HRC-S HV is ON EPHIN: A-Leak = mu-a B-Leak = mu-a 12:55 ACIS FOCAL plane temperature is -115.3 13:40 LOS. ACIS focal plane -117.4 NOTES/ISSUES/PROBLEMS Chandra snapshot has not come back up following the power-down at 60 Garden st. last Friday. No new quick look images. Notes from 9am status meeting: 8 supports over the weekend, 10 dumps, 1 bad dump was repeated successfully. 2 segments of the APR0900d load are uplinked -- good until day 104. CAP 591 for ACIS squeegy testing was successfully run Friday night. Continue to get the permanent losses of small amounts (few hundred minor frames, 1/2 to 4 minutes) of data from Goldstone. Data from day 097, intervals 00:37 to 07:32, and 08:49 to 15:22 is currently "missing." Situation is being investigated to see if it can be recovered. APR1600 products being worked, expected out on Tuesday afternoon. OFLS 8.1a still needs to be testing by running the DEC1299 load and reviewing (in order to get HRC observations, and check the new HRC CSD). We also need to perform runs with the new ASC guide star catalog and verify the output products. All these tasks must be finished before the third string can be reconfigured to accept the new ONLS 3.7 delivery, which is incompatible with ONLS 3.6 and OFLS 8 products. ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 FAX: (617)495-7356 cell phone: (617)512-5627 pager: 800-759-8352 PIN 1636502 or e-mail 1636502@skytel.com -------------------------------------------------------