Nov_09_2000_L476.txt Shift L476 Start at 2000:314:12:30:00 GMT = 2000 Nov 09 7:30am EDT End 2000 Nov 09 12:00pm EDT SOT shift report 2000-11-09 L476 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Nov_09_2000_L476.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - A RADMON trip and SCS 107 execution was noted by the OC's and confirmed by the FOT last night during the 314:0010 COMM pass. This was caused by a large (S3 class) radiation storm which hit us at about 313:2330 or so. EPHIN rates were highly elevated above the trip levels during the 314:0010 pass and remained high at the 314:0945 pass. ACE low energy proton rates are high (40,000) and slowly drifting up. A telecon was held at 9pm EDT on Nov 8 to assess the situation. It was decided to initiate a replan to intercept the schedule at the NGC4111 target, uplinking at the 314:1845 pass, radiation levels permitting. Another telecon will be held at 10am EST Nov 9. Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- 600135 01578 00 NGC4111 2000:314:21:38:51.963 12.9 ACIS-S NONE 181.7645 43.0445 43.69 83.33 400108 01030 00 SMC X-1 2000:315:02:04:00.000 6.0 ACIS-S NONE 19.2044 -73.4513 334.97 155.50 900073 02246 00 GSGP4X:091 2000:315:04:12:00.000 12.0 ACIS-S NONE 14.4822 -27.8904 322.59 46.36 ---- T_E74 CAL-ER 2000:315:08:14:05.238 8.1 -- -- 356.3400 -59.4900 313.43 -0.00 ---- T_X75 CAL-ER 2000:315:20:34:47.707 10.0 -- -- 356.3400 -59.4900 312.98 -0.00 700381 02191 00 B2 2236+35 2000:315:23:59:21.785 10.0 ACIS-S NONE 339.6028 35.3431 271.79 100.81 500144 01967 00 SNR 1987A 2000:316:03:48:45.264 100.0 ACIS-S NONE 83.8604 -69.2905 35.32 163.04 200015 00017 00 AU MIC 2000:317:08:07:25.145 54.4 ACIS-S HETG 311.2660 -31.3244 282.27 74.24 ---- T_E75 CAL-ER 2000:317:23:54:20.292 8.0 -- -- 356.3400 -59.4900 311.35 -0.01 ORBITAL EVENTS: 2000:313:01:01:14.509 173 EPERIGEE ORBIT PERIGEE 2000:314:08:45:12.212 174 EAPOGEE ORBIT APOGEE 2000:315:16:28:08.463 174 EPERIGEE ORBIT PERIGEE 2000:317:00:12:57.781 175 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 314:1230 Status at end of last COMM was indicative of SCS 107 run (see note 1) End of shift 314:1730 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last COMM: UTC 2000:314:10:42:01 (Nov 9) f_ACE 2.18e+04 F_ACE 1.22e+09 Kp 1.0 R km 141945D OBT 2000:314:10:41:33 CTUVCDU 5590979 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 90153693.43 ONLVCDU 5590968 OBC Errs 0 OBSID 2077 EPState SUN SIM TTpos -99615 HETG Angle 79.84 PCADMODE NPNT RA 63.965 Bus V 30.40 SIM FApos -467 LETG Angle 78.34 PCONTROL NPNT Dec -55.601 Bus I 25.96 AOFSTAR GUID Roll 19.772 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc NNNTTRTT Dith Yang 7.65 Yaw Rate -0.14 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -7.53 Pitch Rate -0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.10 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -1.10 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -15.87 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 51.05 SA Resolv 105.84 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 11.79 RADMON DISA <--- HRMA power 43.50 SCS 128 INAC -Y SA Amps 12.76 EPHIN Geom SMAL OBA power 51.70 SCS 129 INAC +Y SA Temp 115.49 E150 29268.3 SCS 130 INAC -Y SA Temp 115.12 E300 1648.1 Roll Mom. -3.255 E1300 884.1 <--- Pitch Mom. -10.489 UpL Cmd Acc 42358 EPH A-Leak 1.0040 P4GM 978.3 <--- Yaw Mom. 2.227 Cmd Rej A 22 EPH B-Leak 0.1840 P41GM 203.9 <--- 2) Notes from 9:00am meeting: Operations (Darrell): - 3 supports last 24 hrs, 2 34m, 1 26m - Problem with DSS-16 support last night, 314:0010, power outage at antenna. Resolved by using DSS-27. - RADMON trip as described above, at 313:2326. Mission Planning (Dan/Kevin): - Schedule made per plan of last night, no loads made pending decision to be made at 10am telecon. - Offline 1 and 2 are up and running with HOT failover capability. - Final check today on offline 1 and 2, then re-configure offline 3 to support CSC testing. S/C Engineering(Jeff): - Spacecraft is safe. Current attitude is good until about 316:0000, when an earth limb violation will occur (18 deg vs. 20 required). SOT(Bill): - Discussion of radiation situation. DSOPS(Joy): - Several quick looks (see below). GOT(Ken): - See discussion above re offline 1, 2 and 3. Meetings, etc. - Radiation telecon at 10am - Load review for NOV13 at 1pm - Flight Directors Board meeting at 2pm. - Review of intercept load tonight. 3) Radiation telecon: * Radiation and particularly EPHIN levels are too high now for a resumption of operations with NGC4111 tonight. * Will re-plan for intercepting load at first observation after perigee passage, which is B2 2236+35, starting at 315:2359. Load review tonight. Plan to uplink tomorrow during day. * Will have a review telecon to assess radiation situation prior to uplink. Details will be published by Dan Shropshire via E-mail. * Real-time cleanup CAPS need to be run: - Enable SCS 107 - Enable HRC SCS's 4) Quick look data: Seq # ObsID It Target start time SI Grat Comment ---------------------------------------------------------------------------------------------------------- 600193 02059 00 NGC 1291 2000:312:05:41:54.097 37.2 ACIS-S NONE 900075 02248 00 GSGP4X:114 2000:313:09:14:01.755 12.2 ACIS-S NONE 400106 01028 00 SMC X-1 2000:313:13:05:39.670 6.0 ACIS-S NONE