To:sot_shift from: Dan Schwartz date: 12 Nov 03, 12:00noon EST Subject: SOT shift report 2003-11-12 L1574 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Nov_12_2003_L1574.txt. Shift L1574. Start at 316:13:00 GMT = 08:00am 12 Nov EST End 10:30am 12 Nov SOT Lead DAS (Times will be given in GMT on day 316.) PLAN ---- Continue running load NOV0803B. Complete obsid 4538, then do obsid 4539. Both are ACIS-S observations of the supersoft sources (SSS) RXJ 0527.8-6 and RXJ 0550.0-7151, respectively, to investigate their nature and to understand the duty cycle of their variations. No Comm this shift. Next Comms: 316:1800 to 2000 317:0345 to 0445 317:1100 to 1205 317:2000 to 2100 318:0235 to 0335 318:1405 to 1605 318:2055 to 2155 319:0345 to 0445 319:1040 to 1240 319:2115 to 2215 320:0345 to 0445 320:1310 to 1410 320:1820 to 2020 Orbital events: 2003:315:19:19:29.654 589 ORBIT APOGEE 2003:317:03:04:23.270 589 ORBIT PERIGE 2003:318:10:47:54.989 590 ORBIT APOGEE 2003:319:18:32:43.642 590 ORBIT PERIGEE 2003:321:02:16:05.975 591 ORBIT APOGEE 2003:322:10:00:19.650 591 EPERIGEE ORBIT PERIGEE 2003:323:17:43:53.491 592 EAPOGEE ORBIT APOGEE 2003:325:01:27:21.661 592 EPERIGEE ORBIT PERIGEE 2003:326:09:11:00.738 593 EAPOGEE ORBIT APOGEE 2003:327:16:54:41.099 593 EPERIGEE ORBIT PERIGEE 2003:329:00:37:46.512 594 EAPOGEE ORBIT APOGEE 2003:330:08:22:21.821 594 EPERIGEE ORBIT PERIGEE 2003:331:16:05:26.201 595 EAPOGEE ORBIT APOGEE 2003:332:23:49:31.146 595 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 316:12:04, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 81.953 deg Dec = -69.922 deg ROLL = 33.011 deg Format = 2 OBSID = 4538 RX J0527.8-6954 SIM FA = -467 SIM TSC = 75623 (ACIS-S) DITHER = ENAB HETG = OUT (79.46 deg) LETG = OUT (77.59 deg) HRC-S HV is ON EPHIN Geom = LARG E150 = 427.3 E300 = 10.1 E1300 = 0.3 LT 10.0 (RADMON P4GM = 0.8 LT 300. Triggers) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.7400 mu-a Descending through 102141 km. ACIS focal plane temperature -119.7. NOTES/ISSUES/PROBLEMS From the 9am status meeting: Four supports over the past day, no issues, SSR dumps are current. On-board loads good through 320:14:40. Corrected products, NOV1703A have been circulated for a load review at 2:00 pm today, 405-244-5060, 1159#. Clock correlation issues seem to be associated both with station DSS-54 (since they performed a transmitter upgrade) and with the recent solar storm events. Magnitude is of order 5 micro-seconds. Yesterday's ASVT testing competed a successful VDE swap, and a momentum dump. Backside CME's have occured on Nov 7, 9, 11, and 12, indicating that the regions 484 and 486 are still quite active. Solar protons are very low now, but we may anticipate more radiation events in the next two weeks, as 484 rotates back to the front side in the next day. OFLS 10.2 will be installed on the 3rd string today to enable testing. Star working group meets at 10am, 405-244-5060, 1165#. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 5246 SN 2003jd 314:19:08 ACIS-S NONE Looks good. target not visible. 4130 NGC 6251 315:02:44 ACIS-S NONE Looks good. 4542 M3 315:16:49 ACIS-S NONE Looks good. 4917 M87 315:20:04 ACIS-S NONE Looks good. 5193 Q1017-207 315:21:55 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 -------------------------------------------------------