To:sot_shift from: Dan Schwartz date: 15 May 06, 12:00noon EDT Subject: SOT shift report 2006-05-15 L2489 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/May_15_2006_L2489.txt. Shift L2489. Start at 135:13:00 GMT = 08:00am 15 May EDT End 10:00am 15 May SOT Lead DAS (Times will be given in GMT on day 135.) PLAN ---- Continue running load MAY1506B. Finish obsid 6396, an ACIS-S observation of wide-separation brown dwarf binary 2M1101926-7732383AB, to study the effect of mass and temperature on the X-ray emission. Then do ACIS cti measurements surrounding perigee passage. Next Comms: 135:2250 to 2345 136:1405 to 1505 136:1910 to 2110 137:0345 to 0445 137:1100 to 1200 137:2145 to 2245 138:0345 to 0445 138:1100 to 1150 Orbital events: 2006:134:17:02:41.144 935 EAPOGEE ORBIT APOGE 2006:136:00:46:25.371 935 EPERIGEE ORBIT PERIGEE 2006:137:08:30:24.426 936 EAPOGEE ORBIT APOGEE 2006:138:16:13:47.710 936 EPERIGEE ORBIT PERIGEE 2006:139:23:58:24.021 937 EAPOGEE ORBIT APOGEE 2006:141:07:41:57.924 937 EPERIGEE ORBIT PERIGEE 2006:142:15:26:27.059 938 EAPOGEE ORBIT APOGEE 2006:143:23:10:40.615 938 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 135:12:57, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 165.230 deg Dec = -77.527 deg ROLL = 288.966 deg Format = 2 OBSID = 6396 2M1101926 SIM FA = -467 SIM TSC = 75623 (ACIS-S) DITHER = ENAB HETG = OUT (79.09 deg) LETG = OUT (77.59 deg) HRC-I HV is ON EPHIN Geom = LARG E150 = 48.8 E300 = 6.1 E1300 = 6.2 LT 20.0 (RADMON P4GM = 0.0 LT 300. Triggers) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.0000 mu-a Descending through 88408 km. ACIS focal plane temperature -119.5 degC. EPH temp: 107.86 degF EPH 27V: 10.00 NOTES/ISSUES/PROBLEMS From the 9am status meeting: Nine supports over the past day, no issues. Two stored command segments uplinked; on-board loads good until 138:12:20. CAP 648BQ was run to perform the monthly ephemeris update for MAY. MAY2206 products are in work and expected to go out tomorrow. Joy reported that corrupted data indicated a safe mode, and caused processing to stop. However no safe mode alerts were triggered. (And we were not really in safe mode!) Issue is being diagnosed. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 6859 NGC 6090 134:08:39 ACIS-S NONE Looks good 6896 M81* 134:13:22 ACIS-S HETG Looks good 7127 NGC 0014 134:18:32 ACIS-S NONE target not visible 6693 1RXS J003413.7-01013 134:20:07 ACIS-S NONE target not visible 6430 HD 169142 134:21:16 ACIS-S NONE Looks good ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 cell phone: (617)512-5627 pager: email to 6175125627@vtext.com -------------------------------------------------------