Feb_17_2000_L209.txt Shift L209 Start at 2000:048:16:25 GMT = 2000 Feb 17 11:25am EST End 2000 Feb 17 2:00pm EST See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Feb_17_2000_L200.txt SOT Lead Ed Kellogg SOT-SI Paul Plucinsky SOT SC/ACA FOT-SI HRC-SI John Chappell ACIS-SI OTHER Plan: -in safe mode at 2000:048:08:08:55, recovering. Next passes, today: 2135-2320(4:35pm-6:20pm), uplink offline OBC dump patch - EMK 0040-0645(7:40 pm-1:45 am), begin recovery, takes ~ 4 hours - MDF Friday, 1200-1715 (7 am- 1215pm), - WAP. EVENTS DONE OBSID -------------- ---- ----- OBC dead dump 1632 safe mode 3 patches now in ASVT testing 1718 command to high power mode 1728 patch to uplink offline OBC dump patch at Lucky 1738 0 LOS 1920 AOS 2137 CAP 564, recov.OBC-B from dump condition 2158 LOS, complete step 8 of SOP56003, recovery 2320 9 AM meeting report (there was no meeting today, because of safe mode recover procedures). ------------------- Ops: Mission Planning: will be developing an intercept timeline PCAD: Data: I checked on colossus (/dsops/GOT/input), and found the most recent to be Feb 16 12:40 2000_047_0413_047_1137_Dump_EM_21468.gz DSOPS: OFLS8 testing: C&C file: 1 pm tagup telecon ------------------ Recap: maneuver to dark spot in sky, collect data, for warm pixel map. Daily load left us in attitude from last obs. Maneuver manually: SOC sent SCS240 disable ACA restart, then there's a 3 min delay, then NMM cmd, then enable automatic transition to NPNT, then update target quat, update star cat, SCS 241 starts, go to NPNT. During 3 min delay, instead of waiting for SCS240 to finish, the new quat was uplinked, ~3 degrees from where we were, it was outside limits, so Chandra went to safe mode. Procedures are being reviewed for future improvements by FOT Mgr. S/C status: no anomalies. Sequence: after Safe Mode, tried to do dump of halted OBC; did a software assisted dump, put it into constant dumping mode. Patch needed to correct that state. There is an existing CARD, CCDM L16 that addresses this case. Saw attitude and rate errors in dump. Also dumped PCAD; being analyzed, to verify initial and commanded attitudes to recheck the 3 degree difference. Also check that the time of the quat update was indeed too early. Steps to get back to A side: check patch to halt offline OBC dumping, check stubbing of SCS 218, SCS 2 and 80 needed and available, SCS 141 needed, Dan Muleady asks for them to be locaated. Systematic check on needed loads to be done. Need Fine attitude, SIM translation, HRC HV CAPs needed, Recovery to science load will be a second package, after recovery. Ken: orig sched had a v. long obs 2335 GMT, > 1 day long. Suggest manually maneuver to that attitude, initiate that observation, some time Friday. Intercept weekly load at the end of that observation, about midnight EST Friday. - takes ~4 hours to get ready for the long observation. Will look at comm schedule, try to get added coverage for tomorrow, may be difficult. Tony: watch for CPE warm start count. Bill Peterson: it will be dumped and watched. Another tagup to be held at ~4 pm today. 4 pm telecon ------------ Details of initial stage of recovery were reviewed. 6:20 pm telecon --------------- We completed step 8 of SOP56003, Safe Mode Recovery to A-Side Equipment. This up;inks SCS141 to establish NSM as part of regaining PCAD control to OBC from CPE. Next phase (2) do steps 9-18 of SOP56003. ~1-1/2 hr. (3) steps 19-33,35,36,38,39 PCAD +CAPs ~1-1/2 hr. (4) Fine attitude init. CAP456a is being written tonight, will be executed Fri AM ~3 hr. (5) SI prep+observe ~2 hr. Evaluation of QL data done at 048:21:20 -------------------------------------------- The following observations from the last ten days should be available for review. If there is no comment after the entry, it means the image has not yet appeared in the book. OBSID Target Time Comment ----- ------ -------------- ------- 00327 BZ CAM 2000:039:16:18 ACIS-S NONE 00359 CYGNUS A 2000:042:05:32 ACIS-S NONE 00602 GRB000210 2000:042:05:10 ACIS-S NONE 00756 PSR B1706-44 2000:042:08:38 HRC-I NONE 00328 IRAS 13224-3809 2000:043:15:2 HRC-I NONE OK 00738 SNR 0538-69.1 2000:043:19:14 HRC-I NONE OK 00246 M31 - South 2 2000:044:04:23 HRC-I NONE OK 00258 M31 - South 1 2000:044:04:53 HRC-I NONE OK 00270 M31 - CENTER 2000:044:05:23 HRC-I NONE OK 00282 M31 - North 1 2000:044:05:53 HRC-I NONE OK 00294 M31 - North 2 2000:044:06:23 HRC-I NONE OK 00742 PSR J0437-4715 2000:044:07:43 HRC-I NONE OK 00437 NGC 1808 2000:044:14:10 HRC-I NONE OK 00557 COMA CLUSTER 2000:045:00:27 HRC-I NONE OK 00562 COMA CLUSTER 2000:045:03:23 HRC-I NONE OK 00958 V382 Velorum 1999 2000:045:06:49 HRC-S LETG OK 00027 NGC 2516 2000:046:08:13 HRC-I NONE OK 00135 Q0254-334 2000:046:22:22 ACIS-S NONE OK 00772 CRAB NEBULA 2000:046:23:31 ACIS-S NONE OK,needs dedither? 00139 BL LACERTAE 2000:047:01:52 ACIS-I NONE OK 00308 M31 TRANSIENT TBD 2000:047:02:54 ACIS-I NONE OK 00279 M31 - North 1 2000:047:04:32 HRC-I NONE OK 00438 NGC 6240 2000:047:05:35 HRC-I NONE OK 00142 G21.5-0.9 2000:047:08:48 HRC-I NONE 00154 G21.5-0.9, -Y MPC 2000:047:17:21 HRC-S NONE 00150 G21.5-0.9, +Y MCP 2000:047:20:21 HRC-S NONE 00146 G21.5-0.9,CENTERMC 2000:047:23:21 HRC-S NONE 00405 NGC 4569 2000:048:02:49 ACIS-S NONE NOTES/ISSUES/PROBLEMS --------------------- SI prep+observe will contain several CAPs: OBSID, SIM, ACIS, HRC, to be coordinated by Dan Shropshire, with Andy Northrup. John Chappell and Paul Plucinsky will submit HRC and ACIS parts. Chandra's state was: --------------------- UTC 2000:048:18:29:02 (Thu Feb 17) f_ACE 3.02e+01 F_ACE 0.00e+00 R km 51384A OBT 2000:048:18:28:24 CTUVCDU 145040 OBC s/w SAFE FMT5_OFFL CPEstat SAFE OBT 67199304.72 ONLVCDU 14821008 OBC Errs 10 OBSID 0 EPState SUN SIM TTpos -99616 HETG Angle 80.6 PCADMODE STBY RA 242.571 Bus V 30.40 SIM FApos -467 LETG Angle 79.1 PCONTROL AUTO Dec -62.297 Bus I 32.28 AOFSTAR BRIT Roll 274.825 ACA Object SSSSSSSS Dither DISA HRC-I HV OFF ACA ImFunc SSSSTTTT Dith Yang 0.00 Yaw Rate -0.54 HRC-S HV ON ACA CCD Temp 14.6 Dith Zang 0.00 Pitch Rate -0.25 OBSMode NEXT ACA Int Time 0.705 Roll Rate 0.68 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.45 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -20.15 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.05 SA Resolv 109.89 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 16.05 HRMA power 29.90 -Y SA Amps 17.23 EPHIN Geom LARG OBA power 116.50 +Y SA Temp 115.85 E1300 5 -Y SA Temp 115.85 P4GM 15 Roll Mom. 0.024 SCS 128 P41GM 0 Pitch Mom. -0.044 SCS 129 UpL Cmd Acc 345 A-Leak 0.4400 Yaw Mom. -0.105 SCS 130 Cmd Rej A 28 B-Leak 0.0680