Feb_19_2000_L211.txt Shift L211 Start at 2000:050:12:00:00 GMT = 2000 Feb 19 7:00am EST End 2000 Feb 19 3:00pm EST See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Feb_19_2000_L211.txt SOT Lead Bill Podgorski SOT SC/ACA Rob Cameron FOT-SI Eric Martin/Andy Northrup HRC-SI ACIS-SI OTHER Plan: - Resume Fine Attitude Initialization per CAP 456A from step 8. Complete fine attitude, initialization and maneuver to intermediate attitude to setup for next science run. - Review CAPs to restart science (to be done tomorrow). EVENTS DONE OBSID -------------- ---- ----- Start Shift 050:1200 0 AOS DSS-24 - Status as expected (see note 1) 050:1200 ACE 2 hr Proton Fluence is 1.2E+7 and rising (3.6E+8 discussion trigger) Executing CAP 456A to recover fine atttitude 1205 - Step 8, command attitude hold submode 1206 - Step 9, execute CAP 454A ACA full field search 1210 - Complete, get 8 stars 1216 - Start step 10, Update OBC IRU bias 1217 Dwell on stars Pattern match and determine attitude and IRU bias Attitude found, RA: 66.238545 deg DEC: -19.010940 deg ROLL: 281.869510 deg Drift rate ~0 in yaw, 0.011 deg/hr in pitch - Execute step 16 (dump & verify maneuver parameters) 1246 - Calculate new IRU bias and attitude - Prepare uplink loads for bias and attitude - Step 10c Command AOSUNMAU, Sun Point Submode 1346 - Step 11a Command Attitude Hold Submode 1349 - Step 11d Uplink estimated OBC attitude 1411 - Step 12 Return to Sun Point (AOSUNMAU) 1414 - Step 13a disable attitude command generation 1415 - Step 13b reinitialize attitude command generation 1417 - Step 13c verify commanded & target quaternions 1418 - Step 15 uplink command loads to reinitialize normal point mode 1421 - Step 17 enable and reinitializa ACA processing 1428 - Step 18 enable and reinitialize Attitude Update 1430 - Step 5 enable commanded attitude monitor 1433 - Step 6 enable SCS28 command attitude monitor safing 1435 - Step 19 go to Normal Maneuver Mode AONMMODE 1438 - Step 21 enable auto transition to normal point mode 1440 - Step 23 update target quaternion 1442 - Step 24 update star catalog 1443 - Step 25 enable and activate SCS 211 to set ACA int time 1445 - Step 26 issue AOMANUVR to start maneuver to target 1446 - Step 27 activate SCS 38 to idle the ACA 1447 - Steps 28 and 29, verify end of maneuver and Kalman filter operation 1452 5 guide stars and on Kalman filter Execute CAP 571 to move to intermediate attitude 1659 and cleanup S/C config prior to science - Step 1 already complete - Step 2 uplink command loads for tgt quat and star cat 1700 - Step 3 command NMM via AONMMODE 1702 - Step 4 activate SCS 213 to update tgt quat 1703 - Step 5 activate SCS 170 to update star cat 1704 - Step 6 command AOMANUVR to execute maneuver 1705 - Step 7 activate SCS 38 to idle ACA 1707 - Step 8 Uplink command AOMUNLGR to unload ang momentum 1708 - Step 9 Verify end of maneuver and transition to NPNT 1730 - Step 10 - Step 11 Upload & verify FID light tracking patch 1750 - Step 12 execute step 5 of CAP 572 to turn off IRU2 1752 verify IRU2 off 1759 - Step 13 execute CAP 292 to command K2 relay open 1800 - Complete 1805 ACE 2 hr Proton Fluence is 2.0E+7 and rising 1900 (3.6E+8 discussion trigger) NOTES/ISSUES/PROBLEMS --------------------- (1) Status at AOS: UTC 2000:050:12:01:01 (Sat Feb 19) f_ACE 8.93e+02 F_ACE 1.00e+08 R km 125314D OBT 2000:050:12:00:51 CTUVCDU 482559 OBC s/w NRML FMT4_NORM CPEstat NORM OBT 67348851.40 ONLVCDU 482544 OBC Errs 0 OBSID 0 EPState SUN SIM TTpos -99616 HETG Angle 80.6 PCADMODE NSUN RA 65.941 Bus V 30.55 SIM FApos -467 LETG Angle 79.1 PCONTROL SPNT Dec -19.113 Bus I 27.98 AOFSTAR GUID Roll 281.868 ACA Object SSSSSSSS Dither DISA HRC-I HV OFF ACA ImFunc NTTNNNNN Dith Yang 0.00 Yaw Rate -0.13 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 0.00 Pitch Rate 0.00 OBSMode NEXT ACA Int Time 0.705 Roll Rate -0.16 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.07 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -0.27 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.61 SA Resolv 90.09 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 13.14 HRMA power 48.50 -Y SA Amps 14.30 EPHIN Geom LARG OBA power 78.30 +Y SA Temp 115.85 E1300 10 -Y SA Temp 115.85 P4GM 24 Roll Mom. 18.457 SCS 128 P41GM 0 Pitch Mom. -5.009 SCS 129 UpL Cmd Acc 64911 A-Leak 0.4600 Yaw Mom. -1.626 SCS 130 Cmd Rej A 35 B-Leak 0.0720 2) Telecon held ~1:30pm EST to discuss possibility of inserting HRC-S observation tomorrow after ACIS CTI. Decided not to do it since CTI dataset will be of great value, ~10 hrs of data in different part of orbit than usual. 2) Reviewed science cleanup CAPS 573 (master CAP) 574 (ACIS CTI CAP). 3) Load review for FEB20 load to be at 5:00pm today