To:sot_shift from: Dan Schwartz date: 15 Apr 05, 12:00noon EDT Subject: SOT shift report 2005-04-15 L2094 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/Apr_15_2005_L2094.txt. Shift L2094. Start at 105:13:00 GMT = 08:00am 15 Apr EDT End 10:00am 15 Apr SOT Lead DAS (Times will be given in GMT on day 105.) PLAN ---- Continue running load APR1105B. Do obsid 5598, an HRC-S/LETG observation of the Seyfert 1 galaxy NGC 5548 to study the long term variability of the warm gas outflow. No Comm this shift. Next Comms: 105:1940 to 2040 106:0100 to 0200 106:1100 to 1200 106:1640 to 1840 107:0250 to 0450 107:1130 to 1230 107:2120 to 2220 108:0250 to 0450 108:1300 to 1400 108:2200 to 2300 Orbital events: 2005:105:17:14:46.249 786 EAPOGEE ORBIT APOGEE 2005:107:00:58:57.470 786 EPERIGEE ORBIT PERIGEE 2005:108:08:42:45.115 787 EAPOGEE ORBIT APOGEE 2005:109:16:26:28.467 787 EPERIGEE ORBIT PERIGEE 2005:111:00:10:31.107 788 EAPOGEE ORBIT APOGEE 2005:112:07:54:00.367 788 EPERIGEE ORBIT PERIGEE 2005:113:15:37:47.987 789 EAPOGEE ORBIT APOGEE EVENTS ------ Status at LOS, 105:11:58, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 214.519 deg Dec = 25.149 deg ROLL = 161.391 deg Format = 1 OBSID = 5598 NGC 5548 SIM FA = -990 SIM TSC = -99616 (HRC-S) DITHER = ENAB HETG = OUT (79.09 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 = 1.0200 mu-a Ascending through 124115 km. ACIS focal plane temperature -120.3 degC. EPH temp 88.40 degF NOTES/ISSUES/PROBLEMS We are currently running an ACIS focal plane cooling test, which is why the focal plane temperature is below -119.7 degC. We expect it to get to at least -121.6, IF the earth is not in the field of view of the ACIS radiator. From the 9am status meeting: Four supports the past 24 hours. DSS-27 had a 7 minute delay starting track, due to communication problems with the antenna controller, but no significant impact. A fast ToO for the gamma ray burst GB050412 was activated. APR1605A was built to intercept and pick up this target. Review of products today at 10am, on 405 244 5060 #1165. APR1605B products are already being built to correct the radzone pad times. CAP review for load replacement will follow the product review. We also plan to run the CAP for the routine monthly ephemeris update. ACE P3 rates are at background level. Solar activity is very low. A coronal hole is rotating into Earth facing position, with possible effects over the next 5 days. The video remote has been restored for XWIN2 at the HRC GSE station. Next Monday, we welcome Frank Shackard to the FOT as a new Command Controller. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 4873 2QZ J114327.3-005050 103:18:25 ACIS-S NONE Looks ok 5727 87GB 1143+4437 104:18:24 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 -------------------------------------------------------