To:sot_shift from: Dan Schwartz date: 30 Apr 07, 12:00noon EDT Subject: SOT shift report 2007-04-30 L2839 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/Apr_30_2007_L2839.txt. Shift L2839. Start at 120:12:00 GMT = 08:00am 30 Apr EDT End 10:00am 30 Apr SOT Lead DAS (Times will be given in GMT on day 120.) PLAN ---- Continue running load APR3007B. Do obsid 7643, an ACIS-S ToO observation of the supernova SN2007bg, as part of a multi-wavelength study of the spherical and jet components of explosions. Next Comms: 120/1900-2115 2000 2100 DSS-27 GOLDSTONE 1600-1700 EDT, Mon 30 Apr 121/0245-0500 0345 0445 DSS-24 GOLDSTONE 2345-0045 EDT, Mon 30 Apr 121/1000-1215 1100 1200 DSS-27 GOLDSTONE 0700-0800 EDT, Tue 1 May Orbital events: 2007:120:01:45:33.634 1067 EPERIGEE ORBIT PERIGEE 2007:121:09:28:53.894 1068 EAPOGEE ORBIT APOGEE 2007:122:17:12:44.978 1068 EPERIGEE ORBIT PERIGEE 2007:124:00:56:14.833 1069 EAPOGEE ORBIT APOGEE 2007:125:08:39:52.673 1069 EPERIGEE ORBIT PERIGEE 2007:126:16:23:58.341 1070 EAPOGEE ORBIT APOGEE 2007:128:00:07:24.132 1070 EPERIGEE ORBIT PERIGEE 2007:129:07:52:03.703 1071 EAPOGEE ORBIT APOGEE 2007:130:15:35:38.629 1071 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 120:12:33, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 177.371 deg Dec = 51.841 deg ROLL = 219.905 deg Format = 2 OBSID = 7643 SN2007bg 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 = 143.4 E300 = 1.8 E1300 = 0.0 LT 20.0 (RADMON P4GM = 0.1 LT 300. Triggers) P41GM = 0.0 LT 8.47 Ascending through 86570 km. ACIS focal plane temperature -118.4 degC. EPH temp: 91.63 degF EPH 27V: 20.86 NOTES/ISSUES/PROBLEMS From the 9am status meeting: Ten supports over the weekend. DSS-54 was unable to configure ranging equipment, but recycled the equipment and recovered with no impact to operations. MAY0707 products expected out later today for a load review tomorrow. Solar proton rates are low, and the sun is expected to remain quiet. On Saturday, ACIS FEP5 reported large numbers of bias errors during OBSID 7649. This was from chip S4, and the ToO source was on S3, so no impact is expected. Suspect a stuck bit in the bias plane or bias parity plane. Subsequent observations, after power cycling was done by the stored command load, appear normal. Bias map for obsid 7649 appears normal. AICS team is investigating. Chandra twiki went offline yesterday -- expected back up today. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 8010 C-COSMOS4-1 117:19:04 ACIS-I NONE Looks ok 8070 2048 118:04:59 ACIS-S NONE 8130 1857 118:06:39 ACIS-S NONE 8127 1178 118:08:22 ACIS-S NONE 7649 1E 1048.1-5937 118:10:46 ACIS-S NONE CC mode 8075 1049 118:16:40 ACIS-S NONE 8107 1199 118:18:19 ACIS-S NONE 8048 1720 118:20:00 ACIS-S NONE 8092 1895 118:21:40 ACIS-S NONE 8041 1692 118:23:21 ACIS-S NONE 8553 C-COSMOS4-1 119:01:21 ACIS-I NONE Looks ok 7043 Deep GCS 13 119:06:37 ACIS-I NONE Looks ok Blank comments had no obvious sources. Targets specified zero offsets. ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 cell phone: (617)512-5627 pager: email to 6175125627@vtext.com -------------------------------------------------------