Sep_06_2000_L412.txt Shift L412 Start at 2000:250:11:30:00 GMT = 2000 Sep 6 7:30am EDT End 2000 Sep 6 11:15am EDT SOT shift report 2000-09-06 L412 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Sep_06_2000_L412.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running SEP0300C on ascending leg coming up on apogee. Series of ACIS observations before radiation zone shutdown at 251:20:34. Radiation levels high. See note 1 for analysis. COMM at 250:1415. Seq # ObsID It Target start time SI Grat --------------------------------------------------------------------------------- 800105 00929 00 CL 0024+17 2000:250:06:19:43.283 40.5 ACIS-S NONE 700103 00431 00 EINSTEIN CROSS 2000:250:18:06:57.496 30.5 ACIS-S NONE ---- INTA1 00 CAL-ER 2000:251:03:16:44.467 0.0 -- -- 600099 00796 00 SBS 0335-052 2000:251:03:44:54.795 60.6 ACIS-I NONE 2000:251:20:34:13.086 SIMTRANS from 92904 to -99616 ---- TE50A CAL-ER 2000:251:21:08:49.490 0.5 -- -- ---- TE50B CAL-ER 2000:251:21:25:49.086 7.3 -- -- ORBITAL EVENTS: 2000:249:13:57:47.891 149 EPERIGEE ORBIT PERIGEE 2000:249:14:56:23.828 149 XP1RADZ0 PROTON1 RADIATION EXIT0 2000:249:17:42:23.828 150 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2000:250:21:41:37.387 150 EAPOGEE ORBIT APOGEE 2000:251:23:31:08.463 150 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2000:252:05:26:04.425 150 EPERIGEE ORBIT PERIGEE 2000:252:10:23:08.463 151 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2000:253:13:09:18.663 151 EAPOGEE ORBIT APOGEE 2000:254:15:00:17.647 151 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2000:254:20:54:12.794 151 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 250:1130 LOS at start shift Status at last contact was nominal (see note 2) AOS DSS-54 (Madrid) 250:1415 929 Status at AOS was nominal (see note 4) LOS DSS-54 250:1515 End of shift 250:1530 NOTES/ISSUES/PROBLEMS --------------------- 1) Radiation (at 250:1220): - Current ACIS radiation dose this orbit is about 1.0E+9 - ACIS out of FP for perigee passage at 251:2034 - 32hrs 14 mins exposure to go this orbit (116,040secs) - Added dose at 30,000 flux level is: 3.5E+9 - Summed dose is about 4.5E+9 vs. budget per event of 2.0E+9 - Kp level is low - Contacted Steve O'Dell. His input was that this level would be acceptable (can be accepted within dose budget) if it does not increase. We do expect it to decrease based on ACS SIS data but have no guarantees. He agreed that no action should be taken in next pass. - Contacted Roger Brissenden, Rob Cameron, Mike Juda and Yousaf Butt, all concurrred with plan of action for next pass. - COMM passes are: 250:1415 - 250:1515 (10:15am local) 250:0000 - 251:0115 ( 8:00pm local) 251:0925 - 251:1025 ( 5:25am local, tomorrow am) 251:1755 - 251:1945 ( 1:55pm local, tomorrow pm) - Rob will be SOT lead this afternoon and evening. - At 11:15am EDT proton levels are continuing to drift down (15,000 now) 2) Data from Chandra snapshot: UTC 2000:250:08:35:02 (Sep 6) f_ACE 2.73e+04 F_ACE 6.14e+08 Kp 2.3 R km 125432A OBT 2000:250:08:34:04 CTUVCDU 759423 OBC s/w NRML FMT2_NORM CPEstat OBT 84616444.84 ONLVCDU 759408 OBC Errs 0 OBSID 929 EPState SUN SIM TTpos 75624 HETG Angle 80.2 PCADMODE NPNT RA 6.661 Bus V 30.71 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec 17.177 Bus I 27.22 AOFSTAR GUID Roll 134.997 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang 2.43 Yaw Rate -0.02 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 7.96 Pitch Rate 0.20 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.11 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -42.37 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.81 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.89 SA Resolv 148.57 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 31.50 SCS 128 -Y SA Amps 13.72 EPHIN Geom LARG OBA power 94.40 SCS 129 +Y SA Temp 112.04 E150 1.0 SCS 130 -Y SA Temp 112.97 E300 0.1 Roll Mom. 0.166 E1300 0.0 Pitch Mom. -6.448 UpL Cmd Acc 6849 EPH A-Leak 0.5640 P4GM 0.2 Yaw Mom. -0.882 Cmd Rej A 82 EPH B-Leak 0.1000 P41GM 0.0 Expected RA, DEC, and ROLL: 6.6603 17.1750 135.00 3) Notes from 9:00am meeting: Operations (Darrell): - 3 supports last 24 hrs, all 34m, 3 SSR dumps - 1 load seg uplinked, good thru 254:0030 Mission Planning (Ken/Kevin/Sabrina): - First Load review for SEP10 held yesterday. - New products out for review today at 2pm. Spacecraft Engineering (Jeff): - All is OK. - Yesterday's eclipse was nominal SOT (Bill Podgorski): - Radiation levels high, see note 1. - No OTG telecon today, will do on 2 week intervals DSOPS(Joy): - Several quick looks (see below) GOT(Chris) - All is OK. - Database backup over weekend 4) Status at AOS 250:1415: PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 6.660542 deg 6.66033 DEC = 17.175026 deg 17.17502 ROLL = 134.996793 deg 134.99718 Format = 2 2 OBSID = 929 929 SIM FA = -467 -468 SIM TSC = 74624 75624 HETGA = 80.21 deg (OUT) OUT HETGB = 80.58 deg (OUT) OUT LETGA = 79.08 deg (OUT) OUT LETGB = 78.33 deg (OUT) OUT EPHIN A-leak = 0.4000 B-leak = 0.0720 Altitude = 137876A (km) ACE Proton Flux = 26537 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 1.9E+8 LT 3.6E+8 Radiation Level OK Kp Index (Costello) = 2.67 LT 6 is OK EPHIN Geom = LARG E150 = 0.6 E300 = 0.0 E1300 = 0.0 LT 10.00 (RADMON P4GM = 0.0 LT 300.00 Triggers) P41GM = 0.0 LT 8.47 HRC SP PS = OFF IM PS = ON IM Top Step = 42 IM Bot Step = 53 Shield 1 HV = OFF Shield 2 HV = OFF TE Rate 1 = 0 TE Rate 2 = 0 Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 0 ACIS FP Temp = -119.7 Cold Radiator = -127.9 DEA Pwr = 53.4 DPA Pwr = 41.6 Science State = Science Active 4) Quick Look data review(OK unless noted): Seq # ObsID It Target start time SI Grat Comments ---------------------------------------------------------------------------------------------------------- 590223 01843 00 G21.5-0.9 2000:246:08:59:44.459 8.0 ACIS-I NONE 590222 01842 00 G21.5-0.9 2000:246:11:23:21.161 8.0 ACIS-I NONE 800066 00890 00 A2052 2000:247:06:14:49.093 37.3 ACIS-S NONE 700087 00415 00 NGC 5273 2000:247:17:00:46.362 2.0 ACIS-S NONE 800024 00516 00 ZWCL 1358+6245 2000:247:17:56:07.580 55.0 ACIS-S NONE 500024 00728 00 3C 58 2000:248:09:43:00.000 51.0 ACIS-S NONE 900007 00935 00 AX J0223+4212 2000:249:00:21:00.000 4.5 ACIS-I NONE 800041 00533 00 A773 2000:249:02:05:59.327 11.2 ACIS-I NONE 800038 00530 00 A586 2000:249:21:03:19.293 10.0 ACIS-I NONE