To:sot_shift from: Dan Schwartz date: 20 Nov 00, 12:00noon EST Subject: SOT shift report 2000-11-20 L487 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Nov_20_2000_L487.txt. Shift L487. Start at 325:13:00 GMT = 08:00am 20 Nov EST End 12:00 noon 20 Nov SOT Lead DAS (Times will be given in GMT on day 325. In general times are rough, not precise.) PLAN ---- Continue running load NOV2000c. OBSID 828 uses ACIS-S to observe the jet in 3C 66B. Then secure instruments for CTI measurements and perigee passage. Next Comms: 325:23:55 to 05:00 ACA Dark Current Measurement 326:13:25 to 15:25 326:00:25 to 01:25 327:08:00 to 09:00 327:15:35 to 16:35 Orbital events: 2000:326:06:22:59.474 178 ORBIT PERIGEE 2000:327:14:06:27.088 179 ORBIT APOGEE 2000:328:21:49:52.836 179 ORBIT PERIGEE 2000:331:13:17:18.216 180 ORBIT PERIGEE EVENTS ------ Status at AOS, 325:12:48, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 35.798 deg DEC = 43.013 deg ROLL = 220.000 deg Format = 2 OBSID = 828 3C 66B SIM FA = -467 SIM TSC = 74624 (ACIS-S) HETG = OUT (79.84 deg) LETG = OUT (78.34 deg) HRC-S HV is ON EPHIN Geom = LARG E1300 = 0.1 LT 10.0 (RADMON P4GM = 0.4 LT 300. Triggers) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.1880 mu-a Descending through 122065 km. ACIS focal plane temperature -119.8. 14:44 LOS Status essentially unchanged. Descending through 115096 km. ACIS focal plane temperature -119.5. NOTES/ISSUES/PROBLEMS From the 9am status meeting: Over the weekend, 13 dumps, 3 load segments uplinked, on-board loads good until 329:09:45. CAPs successfully run to insert and retract the LETG -- The AQL X-1 TOO was successfully carried out! A routine CAP checked that the CPE warm start count remained at 1. Tonight will be the dark current calibration run during the 2355 to 0500 real time contact. Products were verified on ASVT last Friday. The CAP review will be held at 1pm today, on 405 244 5060 1165#. Preliminary runs were made for NOV2700, no schedule yet, plan for initial load review tomorrow at 2pm and final review on Wednesday. ACIS operations meeting of last Thursday defined the following measurements in support of diagnosis of CTI mitigation efforts: 10 runs of cuckoo clocking mode on the I3 chip. Two runs of raw mode data with no window. All to be done on descending legs to ensure a cold focal plane. We will require one good CTI measurement, on I chips, each week. Rino reported ACIS radiator temperature toggled one bit at apogee. Peter Ford's pages show average temperatures at least -119.8. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 2306 0509-67.5 ACIS-S/HETG Looks good 290 M31 - North 1 322:04:15 HRC-I Looks good 278 M31 - CENTER 322:04:40 HRC-I Looks good 266 M31 - South 1 322:05:06 HRC-I Looks good 254 M31 - South 2 322:05:31 HRC-I Looks good 1562 AC114 322:06:23 ACIS-S Looks good 1644 HE2149-2745 323:03:19 ACIS-S Looks good 712 AQL X-1 323:22:09 HRC-S LETG Looks good ------------------------------------------------------- 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 -------------------------------------------------------