To:sot_shift from: Dan Schwartz date: 28 Jun 02, 12:00noon EDT Subject: SOT shift report 2002-06-28 L1072 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jun_28_2002_L1072.txt. Shift L1072. Start at 179:12:00 GMT = 08:00am 28 Jun EDT End 12:00 noon 28 Jun SOT Lead DAS (Times will be given in GMT on day 179.) PLAN ---- Continue running load JUN2402C. In perigee passage. No Comm this shift. Next Comms: 179:1745 to 1845 180:0300 to 0400 180:1205 to 1305 180:2220 to 2320 181:0800 to 0900 181:1700 to 1800 182:0315 to 0415 182:1320 to 1520 182:2340 to 0140 183:0700 to 0800 183:1400 to 1500 183:2300 to 0000 Orbital events: 2002:179:16:49:28.738 399 ORBIT PERIGEE 2002:181:00:33:00.610 400 ORBIT APOGEE 2002:182:08:17:04.220 400 ORBIT PERIGEE 2002:183:16:01:11.893 401 ORBIT APOGEE 2002:184:23:45:13.281 401 ORBIT PERIGEE 2002:186:07:29:40.747 402 ORBIT APOGEE 2002:187:15:14:18.058 402 ORBIT PERIGEE 2002:188:22:58:38.337 403 ORBIT APOGEE EVENTS ------ Status at LOS, 179:09:18, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 8 FIDS = 0 RA = 151.902 deg Dec = -21.998 deg ROLL = 233.106 deg Format = 2 OBSID = 61149 ACIS CTI SIM FA = -467 SIM TSC = -99616 (HRC-S) HETG = IN ( 6.34 deg) LETG = OUT (77.96 deg) HRC-I HV is ON EPHIN Geom = LARG E1300 = 0.0 LT 10.0 (RADMON P4GM = 0.0 LT 300. Disabled) P41GM = 0.0 LT 8.47 A-leak = 0.8040 mu-a B-leak = 0.1560 mu-a Descending through 71634 km. ACIS focal plane temperature -119.7. NOTES/ISSUES/PROBLEMS From the 9am status meeting: Three supports in the last day, no problems. On-board loads still good until 182:01:39. First segment of JUL0102B will be uplinked later today. JUL0802A products will be distributed today, for an email load review on Monday. The 3-day forecast from Today's Space Weather still says "Solar activity is expected to be at very low to low levels." ASVT successfully tested a new Command Sequence Definition for eclipses yesterday. This features going to Normal Sun Point 15 minutes, instead of 1 hour, before the start of eclipse. This allows us to stay cooler, and use more power in the eclipse. The CSD will not be used for the upcoming August eclipse season, but is expected to be used for the lunar eclipse in September. After next Monday's 9am status, there will be a CAP review of SCS 107 in preparation for coverage of the HER X-1 pointing Monday evening. The CAP review will cover the criteria under which it would be invoked -- namely, if HER X-1 is not imaged on ACIS S3 chip. While we don't have a credible scenario causing such a case, it is easy to check the ACIS data and take remedial action with SCS 107 if necessary. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 3710 A133 OFFSET 177:16:06 ACIS-I 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 -------------------------------------------------------