To:sot_shift from: Dan Schwartz date: 17 May 04, 12:00noon EDT Subject: SOT shift report 2004-05-17 L1761 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/web-cxc/htdocs/acis/SOT_reports/May_17_2004_L1761.txt. Shift L1761. Start at 138:12:00 GMT = 08:00am 17 May EDT End 10:00am 17 May SOT Lead DAS (Times will be given in GMT on day 138.) PLAN ---- Continue running load May1704B. Finish obsid 4700, ACIS-S observation of the Sculptor dwarf spheroidal galaxy, as part of a monitoring series of the X-ray population. Then obsid 4966, ACIS-I observation of the z=0.347 Abell cluster AS1063 to combine with Sunyaev-Zel'dovich microwave decrement data; and obsid 4941, ACIS-I observation of the cluster A2657, part of a homogeneous sample of local ROSAT clusters, to study detailed processes in the cluster center. Next Comms: 138:2020 to 2120 139:0345 to 0445 139:1100 to 1200 139:1640 to 1840 140:0345 to 0445 140:1215 to 1315 140:1825 to 1925 141:0250 to 0450 141:1100 to 1200 141:1900 to 2000 Orbital events: 2004:138:13:05:00.623 660 EAPOGEE ORBIT APOGEE 127941km 2004:139:20:49:34.336 660 EPERIGEE ORBIT PERIGEE 2004:141:04:33:25.650 661 EAPOGEE ORBIT APOGEE 2004:142:12:18:21.489 661 EPERIGEE ORBIT PERIGEE 2004:143:20:01:47.320 662 EAPOGEE ORBIT APOGEE 2004:145:03:46:37.839 662 EPERIGEE ORBIT PERIGEE 2004:146:11:29:57.405 663 EAPOGEE ORBIT APOGEE 2004:147:19:14:17.952 663 EPERIGEE ORBIT PERIGEE 2004:149:02:57:49.686 664 EAPOGEE ORBIT APOGEE 2004:150:10:41:33.880 664 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at AOS, 138:11:17, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 15.062 deg Dec = -33.706 deg ROLL = 138.637 deg Format = 2 OBSID = 4700 Sculptor SIM FA = -467 SIM TSC = 75634 (ACIS-S) DITHER = ENAB HETG = OUT (79.46 deg) LETG = OUT (77.59 deg) HRC-I HV is ON EPHIN Geom = LARG E150 = 0.4 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 = 0.5600 mu-a Ascending through 127647 km. ACIS focal plane temperature -119.7 C. EPH temp 82.24 F 12:28 Enter Normal Maneuver Mode. Start maneuver 12:31 all stars lost. OBSID changes to 4966 12:43 At target position. SIM translates. All fids lost 12:45 Enter Normal Pointing Mode. SIM focus adjust. 12:46 Tracking 3 fids, 5 stars. Status at LOS, 138:13:13, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 342.227 deg Dec = -44.504 deg ROLL = 115.947 deg Format = 2 OBSID = 4966 Abell S1063 SIM FA = -535 SIM TSC = 92903 (ACIS-I) DITHER = ENAB HETG = OUT (79.46 deg) LETG = OUT (77.59 deg) HRC-I HV is ON EPHIN Geom = LARG E150 = 0.3 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 = 0.5600 mu-a Descending through 127937 km. ACIS focal plane temperature -119.7 C. EPH temp 86.25 F NOTES/ISSUES/PROBLEMS From the 9am status meeting: 10 supports over the weekend. No issues, 1 SSR dump was re-started. Three load segments were uplinked, on-board loads good until 142:15:50. MPS products expected out tomorrow, for load review on Wednesday. The yellow limit on the SIM translation table tripped at 50 deg F for 1 -- 2 minutes during a translation. This is the first trip since that limit was raised to 50 deg. Will be looked into, but we were in a hot case orientation so not a total surprise. Red limit is at +60 deg. On Saturday, CAP 915 to upload the new ACIS software version was not successful. From Paul's report: " - - we loaded all the packets for the patches and were able to confirm every verifier during the loading (all 73 of them) - - we dumped the patch list and it did not verify against the file which Royce had placed on Malang - - we then dumped the patch list again, the second dump was identical to the first, but different from the reference file. So, we could rule out TLM corruption - - we then backed up and reloaded the patches - - we dumped the patches for a third time, the third dump was identical to the first two, and different from the reference file. So, we can rule out a corruption on the uplink. - - we dumped the patches a fourth time, and the fourth dump was identical to the first three - - we then loaded the ver 30 patches - - we dumped the ver 30 patches and they were identical to the reference file for the version 30 patches. - - this rules out an ACIS HW or commanding problem SO, I think we are left with two possibilities: - - the reference file on Malang is not correct - - the command load files in the ODB are not correct" ACIS team is currently checking the reference file. ACIS is currently operating exactly as it has been with version 30, and there are no impacts due to the unsuccessful update. When the problem is diagnosed, we will schedule another time to re-execute this CAP. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 5017 Extended CDF-S #2 135:01:32 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 -------------------------------------------------------