To:sot_shift from: Dan Schwartz date: 29 Sep 00, 12:00noon EDT Subject: SOT shift report 2000-09-29 L435 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Sep_29_2000_L435.txt. Shift L435. Start at 273:12:00 GMT = 08:00am 29 Sep EDT End 12:00 noon 29 Sep SOT Lead DAS (Times will be given in GMT on day 273. In general times are rough, not precise.) PLAN ---- Continue running load SEP02800b. Exit radiation belts, perform the TOO ACIS-S observation of GRB000926, obsid 598, insert the gratings during a real time comm starting at 19:00 GMT. Pick up the previously planned program with HRC-S/LETG observations of YY Gem, obsid 28, and AM HER, obsid 645. YY Gem is shortened to about 55 Ksec, but includes two eclipses. Next Comms: No Comm this shift. 273:16:20 to 17:20 273:19:00 to 21:30 added comm for LETG insertion 274:00:30 to 01:30 274:06:50 to 08:50 274:17:00 to 18:00 275:02:30 to 03:30 275:11:30 to 13:30 275:21:00 to 23:00 Orbital events: 274:16:51 ORBIT APOGEE 276:00:34 ORBIT PERIGEE 277:08:18 ORBIT APOGEE 278:16:02 ORBIT PERIGEE EVENTS ------ Status at LOS, 273:07:27, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 8 FIDS = 0 RA = 20.357 deg DEC = 23.222 deg ROLL = 143.406 deg Format = 2 OBSID = 61900 SIM FA = -990 SIM TSC = -99616 (HRC-S) HETG = OUT (79.8 deg) LETG = OUT (78.3 deg) HRC-I HV is ON EPHIN Geom = SMAL E1300 = 12422.8 LT 10.0 (RADMON P4GM = 10579.9 LT 300. Triggers) P41GM = 129.4 LT 8.47 A-leak = 0.6400 mu-a B-leak = 0.1680 mu-a Descending through 29746 km. ACIS focal plane temperature -119.9. NOTES/ISSUES/PROBLEMS From the 9am status meeting: Overnight, the SEP2400c load was stopped, and the SEP2800b load with the TOO for the gamma ray burst GR000926 was loaded. The gratings were removed during the 06:30 contact, as reported in SOT shift report 2000-09-29 H435. Gratings will be reinserted via real time commanding during the comm at 19:00 this afternoon. Data connectivity to flow realtime telemetry to the ACA, HRC and ACIS EGSE has been restored. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 589 X PERSEI (HD 24534) 271:09:12 HRC-S LETG Looks good. very hard 30 H1504+65 271:23:39 HRC-S LETG Looks good. soft 2308 V1494 Aql 272:07:08 HRC-S LETG Looks good. hard ------------------------------------------------------- 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 -------------------------------------------------------