To:sot_shift from: Dan Schwartz date: 01 Jun 04, 12:00noon EDT Subject: SOT shift report 2004-06-01 L1776 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/Jun_01_2004_L1776.txt. Shift L1776. Start at 153:12:00 GMT = 08:00am 01 Jun EDT End 10:30am 01 Jun SOT Lead DAS (Times will be given in GMT on day 153.) PLAN ---- Continue running load MAY3104C. Do obsid 4483, an HRC-S/LETG observation of 36 Oph, to understand the mass loss rate from this K dwarf binary system. Next Comms: 153:1900 to 2000 154:0425 to 0525 154:1100 to 1200 154:2000 to 2105 155:0425 to 0525 155:1100 to 1200 155:1410 to 1640 155:1900 to 2000 Orbital events: 2004:153:02:08:50.770 665 EPERIGEE ORBIT PERIGEE 2004:154:09:51:57.677 666 EAPOGEE ORBIT APOGEE 2004:155:17:36:19.089 666 EPERIGEE ORBIT PERIGEE 2004:157:01:19:11.773 667 EAPOGEE ORBIT APOGEE 2004:158:09:03:21.160 667 EPERIGEE ORBIT PERIGEE 2004:159:16:46:59.557 668 EAPOGEE ORBIT APOGEE 2004:161:00:30:32.690 668 EPERIGEE ORBIT PERIGEE 2004:162:08:14:49.011 669 EAPOGEE ORBIT APOGEE EVENTS ------ Status at AOS, 153:12:32, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 258.840 deg Dec = -26.621 deg ROLL = 57.001 deg Format = 1 OBSID = 4483 36 Oph SIM FA = -990 SIM TSC = -99615 (HRC-S) DITHER = ENAB HETG = OUT (79.46 deg) LETG = IN ( 4.09 deg) HRC-S HV is ON EPHIN Geom = LARG E150 = 0.9 E300 = 0.1 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 = 0.4480 mu-a Ascending through 82654 km. ACIS focal plane temperature -117.8 degC. EPH temp 69.70 degF LOS 153:13:14 Status is essentially unchanged. Ascending through 85912 km. ACIS focal plane temperature -117.8 degC. EPH temp 67.27 degF NOTES/ISSUES/PROBLEMS Comm lost for about 7 minutes during current pass. ACIS temperature is high, but we are not observing with ACIS so not an issue. CAP reviews approved CAP 917 to upload the ACIS software patch, and CAP 919 to increase the momentum unload threshold and deadband to 31.9 and 10.0, respectively, in the CPE. CAP 920 to backout CAP 919 was approved pending minor revision. CAP 919 is expected to be run at this afternoon's 1900 pass, and CAP 917 at the Thursday morning 1410 to 1640 pass. From the 9am status meeting: Twelve comms over the weekend. Some problems with DSS-54; TCP-1 failed. Three load segments uplinked, on-board loads good until 155:21:47 JUN0704A products are expected out late today for a load review tomorrow. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 4762 MCG--6-30-15 148:02:47 ACIS-S HETG looks good 4645 SGR 1806-20 148:14:24 ACIS-S NONE ToO in CC mode 4899 NGC 4945 149:05:17 ACIS-S HETG dispersed spectra not obvious 4701 SCULPTOR DWARF SPHER 151:22:47 ACIS-S NONE looks good 4965 A2069 152:01:38 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 -------------------------------------------------------