To:sot_shift from: Dan Schwartz date: 28 Aug 02, 12:00noon EDT Subject: SOT shift report 2002-08-28 L1133 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_28_2002_L1133.txt. Shift L1133. Start at 240:12:00 GMT = 08:00am 28 Aug EDT End 12:00 noon 28 Aug SOT Lead DAS (Times will be given in GMT on day 240.) PLAN ---- Continue running load AUG2602D. Currently in perigee passage. After egress do obsid 3223, an ACIS-S observation of RXJ1340.6+4018, a giant elliptical galaxy which may be a `fossil' group of galaxies at an end-point of galaxy merging. Next Comms: 240:1345 to 1445 240:2300 to 0000 241:0745 to 0845 241:1630 to 1730 242:0100 to 0200 242:1100 to 1200 242:2030 to 2130 243:0600 to 0700 243:1400 to 1500 243:2300 to 0000 244:0800 to 0900 244:1830 to 1930 Orbital events: 2002:240:12:35:44.029 422 EPERIGEE ORBIT PERIGEE 2002:241:20:20:02.054 423 EAPOGEE ORBIT APOGEE 2002:243:04:04:32.349 423 EPERIGEE ORBIT PERIGEE 2002:244:11:48:33.813 424 EAPOGEE ORBIT APOGEE 2002:245:19:33:41.256 424 EPERIGEE ORBIT PERIGEE 2002:247:03:17:01.836 425 EAPOGEE ORBIT APOGEE EVENTS ------ Status at LOS, 240:05:58, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 8 FIDS = 0 RA = 69.998 deg Dec = -0.003 deg ROLL = 99.829 deg Format = 2 OBSID = 61057 ACIS CTI SIM FA = -467 SIM TSC = -99615 (HRC-S) HETG = IN ( 6.34 deg) LETG = OUT (77.96 deg) HRC-S HV is ON EPHIN Geom = LARG E1300 = 0.0 LT 10.0 (RADMON IS P4GM = 0.4 LT 300. DISABLED) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.5720 mu-a Descending through 65554 km. ACIS focal plane temperature -119.7 13:45 AOS Status at AOS, 240:13:48, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 8 FIDS = 0 RA = 109.997 deg Dec = 40.000 deg ROLL = 67.063 deg Format = 2 OBSID = 61056 ACIS CTI SIM FA = -467 SIM TSC = -99615 (HRC-S) HETG = IN ( 6.34 deg) LETG = OUT (77.96 deg) HRC-S HV is ON EPHIN Geom = SMALL E1300 = 1077.2 LT 10.0 (RADMON IS P4GM = 12791.3 LT 300. DISABLED) P41GM = 1.5 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.6720 mu-a Ascending through 30594 km. ACIS focal plane temperature -119.5 14:43 LOS Status is essentially unchanged. Ascending through 35708 km. ACIS focal plane temperature -118.1 NOTES/ISSUES/PROBLEMS Accumulated ACIS fluence for the last orbit was 1.35e+09. ACIS temperature has risen more than a degree in the last hour of the pass, and will likely be too warm for at least part of the CTI measurement. From the 9am status meeting: Two supports in previous 24 hours, no problems. One load segment uplinked, on-board loads good until 244:00:00. Had an email review of SEP0202A load yesterday. Expect to send out revised products this morning for a load review telecon at 2pm today. MEETINGS: Star selection and ACA ops meeting at 10am today. 405 244 5060 1165# ASVT upgrade telecon at 3pm today, 405 244 5060 1165#. At the star selection telecon, the fact that obsid 2563 and 4366 had 4 marginal quality ACQ stars AND was near lunar eclipse, led to a decision not to observe this target at this time, to avoid any small chance of going into bright star or normal sun mode so near the eclipse. This will require a redo of the schedule, and another review tomorrow. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 2549 ONC FIELD N 238:14:07 ACIS-I NONE Looks ok 2758 SNR 0103-72.6 239:04:21 ACIS-S NONE Looks ok ------------------------------------------------------- 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 -------------------------------------------------------