To:sot_shift from: Dan Schwartz date: 09 Oct 02, 12:00noon EDT Subject: SOT shift report 2002-10-09 L1175 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Oct_09_2002_L1175.txt. Shift L1175. Start at 282:12:00 GMT = 08:00am 09 Oct EDT End 10:00am 09 Oct SOT Lead DAS (Times will be given in GMT on day 282.) PLAN ---- Continue running load OCT0502B. Finish OBSID 2537, ACIS-S observation of Beta Pic, a GTO observation to search for X-rays from possible planets around Beta Pic. Then CTI measurements surrounding perigee passage. No Comm this shift. Next Comms: 282:1950 to 2150 283:0640 to 0840 283:1615 to 1715 284:0100 to 0200 284:0930 to 1030 284:1550 to 1750 285:0200 to 0300 285:0315 to 0730 285:0415 to 0715 285:1145 to 1245 285:2105 to 2305 286:0420 to 0520 286:1400 to 1600 287:0000 to 0100 Orbital events: 2002:282:19:58:59.135 438 ORBIT PERIGEE 2002:284:03:42:27.940 439 ORBIT APOGEE 2002:285:11:26:45.899 439 ORBIT PERIGEE 2002:286:19:09:57.448 440 ORBIT APOGEE 2002:288:02:54:10.668 440 ORBIT PERIGEE 2002:289:10:37:45.191 441 ORBIT APOGEE 2002:290:18:21:11.551 441 ORBIT PERIGEE 2002:293:09:48:40.120 442 ORBIT PERIGEE EVENTS ------ Status at LOS, 282:11:58, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 86.839 deg Dec = -51.088 deg ROLL = 72.215 deg Format = 2 OBSID = 2537 Beta Pic SIM FA = -467 SIM TSC = 75623 (ACIS-S) HETG = OUT (79.46 deg) LETG = OUT (77.96 deg) HRC-S HV is ON EPHIN Geom = LARG E1300 = 0.0 LT 10.0 (RADMON P4GM = 0.0 LT 300. Triggers) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.6160 mu-a Descending through 73684 km. ACIS focal plane temperature -119.7. NOTES/ISSUES/PROBLEMS From the 9am status meeting: Three supports, no problems. One load segment uplinked, one more left to complete the OCT0502B schedule. On-board loads are good through 285:14:56. CAP 648Z was run for the routine ephemeris update for October. OCT1402C products are out for a load review at 2pm today. Star selection and aspect working group meeting at 10am. Look ahead: next earth constraint test being scheduled for day 296 (Oct 23). Tomorrow, 9:30 to noon, Keith Patrick will be conducting meetings on the life limiting items for the Gratings and HRC. Friday, 9:30 to noon, the meeting will cover ACIS. Both are in the Action Room. The motivation is to demonstrate the feasibility of a 15 year mission lifetime by means of Identifying what is likely to fail, Identifying what telemetry can indicate incipient failures, and Identifying what might be done operationally to avert or ameliorate the failure conditions. (This study is being carried out for all the spacecraft systems.) Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 3233 3C 28.0 280:12:15 ACIS-I NONE Looks good 3284 MACSJ2211.7-0349 281:05:57 ACIS-I NONE Looks good 2708 GX 13+1 281:11:29 ACIS-S HETG Looks good 3106 Q1829+290 281:20:20 ACIS-S NONE Looks good 3335 AX J1531.8+2414 281:22:15 ACIS-S NONE 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: 877-693-7198 PIN 693-7198 or e-mail 6937198@archwireless.net -------------------------------------------------------