To:sot_shift from: Dan Schwartz date: 01 Jul 04, 12:00noon EDT Subject: SOT shift report 2004-07-01 L1806 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/Jul_01_2004_L1806.txt. Shift L1806. Start at 183:12:00 GMT = 08:00am 01 Jul EDT End 10:00am 01 Jul SOT Lead DAS (Times will be given in GMT on day 183.) PLAN ---- Continue running load JUL0104A. Finish obsid 4564, an ACIS-S/HETG observation of the galactic binary GX 17+2, to study the Fe-K shell features in detail. Then do obsid 4510, an ACIS-S observation of the old, open star cluster NGC 6791. Next Comms: 183 1720 1800 2000 184 0300 0400 0500 184 1015 1115 1215 184 1800 1900 2000 185 0210 0250 0450 185 0945 1045 1145 185 1845 1945 2045 186 0210 0250 0450 Orbital events: 2004:183:11:57:29.064 677 EAPOGEE ORBIT APOGEE 2004:184:19:41:52.959 677 EPERIGEE ORBIT PERIGEE 2004:186:03:25:07.240 678 EAPOGEE ORBIT APOGEE 2004:187:11:08:41.476 678 EPERIGEE ORBIT PERIGEE 2004:188:18:52:47.030 679 EAPOGEE ORBIT APOGEE 2004:190:02:36:24.347 679 EPERIGEE ORBIT PERIGEE 2004:191:10:20:40.415 680 EAPOGEE ORBIT APOGEE 2004:192:18:04:56.886 680 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 183:12:28, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 274.016 deg Dec = -14.008 deg ROLL = 214.251 deg Format = 2 OBSID = 4564 GX 17+2 SIM FA = -467 SIM TSC = 74033 (ACIS-S) DITHER = ENAB HETG = IN ( 5.96 deg) LETG = OUT (77.59 deg) HRC-I HV is ON EPHIN Geom = LARG E150 = 0.2 E300 = 0.0 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 = 0.7440 mu-a Descending through 127283 km. ACIS focal plane temperature -119.7 degC. EPH temp 80.38 degF. NOTES/ISSUES/PROBLEMS From the 9am status meeting: Three supports over the last day. We had a 34m support moved to a 26m to allow JPL greater coverage of Cassini. The three segments of the SCS 107 recovery load JUL0104A were uplinked. On-board loads are good until 187:03:04. Products for JUL0504C loads have been circulated. There will be a review meeting at 1pm today. (Changes are minor, but we should check carefully due to the new continuity conditions.) A probable ACIS anomaly has been discovered in obsid 5008, an ACIS-I observation of MACS1115.2+5320 on day 174:20:49. The observation was scheduled for 26.9 ks, but ACIS stopped after 18.6 ks with a science report error message SMTERM_FEP_IO_ERROR. This is under investigation by the ACIS team. The FEP reset normally for the next observation, and ACIS has apparently operated flawlessly since that time. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 4642 SN1988Z 181:05:51 ACIS-S NONE Looks OK 5169 2 3C273 182:12:57 ACIS-S HETG 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 -------------------------------------------------------