May_02_2000_L284.txt Shift L284 Start at 2000:123:11:30:00 GMT = 2000 May 02 7:30am EDT End 2000 May 02 11:45am EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/May_02_2000_L284.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running load APR3000E on upward leg after perigee. Observing NGC 3603 (obsid 00633) with ACIS-I at start of shift. Maneuver to PMN J1131+0455 (obsid 00423) at 123:1338 and observe with ACIS-S throughout contact. ORBITAL EVENTS: 2000:122:15:23:47.985 101 EPERIGEE ORBIT PERIGEE 2000:123:23:07:53.598 102 EAPOGEE ORBIT APOGEE 2000:125:06:50:44.897 102 EPERIGEE ORBIT PERIGEE 2000:126:14:35:43.692 103 EAPOGEE ORBIT APOGEE 2000:127:22:19:36.564 103 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 123:1130 Status at last contact 123:0700 was nominal (note 1) AOS DSS-24 (Goldstone) 123:1400 00423 State at AOS was nominal, in NMAN Acquire 5 stars/3 fids 123:1410 Restarted HRC GSE processing 123:1430 ACE Proton flux trending down now 123:1450 LOS DSS-24 123:1500 End of shift 123:1500 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last contact: UTC 2000:123:07:00:01 (Tue May 2) f_ACE 1.87e+02 F_ACE 7.25e+06 R km 116963A OBT 2000:123:06:59:16 CTUVCDU 8248191 OBC s/w NRML FMT2_NORM CPEstat OBT 73637956.39 ONLVCDU 8248176 OBC Errs 0 OBSID 633 EPState SUN SIM TTpos 92903 HETG Angle 80.2 PCADMODE NPNT RA 168.733 Bus V 30.87 SIM FApos -535 LETG Angle 79.1 PCONTROL NPNT Dec -61.249 Bus I 30.77 AOFSTAR GUID Roll 298.654 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -4.56 Yaw Rate 0.10 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -3.50 Pitch Rate 0.16 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.14 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.72 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -31.98 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.89 SA Resolv 121.92 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 14.49 HRMA power 33.00 -Y SA Amps 15.66 EPHIN Geom LARG OBA power 43.60 +Y SA Temp 110.82 E1300 0 -Y SA Temp 111.74 P4GM 1 Roll Mom. 2.677 SCS 128 P41GM 0 Pitch Mom. -5.479 SCS 129 UpL Cmd Acc 32935 A-Leak 0.3600 Yaw Mom. 2.660 SCS 130 Cmd Rej A 23 B-Leak 0.0600 Expected RA, Dec, Roll (degrees): 168.73211, -61.25033, 298.65385 2) Chandra state at 123:1410 (after completion of maneuver): WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 172.975714 deg 172.97570 DEC = 4.948813 deg 4.94881 ROLL = 248.983514 deg 248.98353 Format = 2 2 OBSID = 423 423 SIM FA = -467 -468 SIM TSC = 75624 75624 HETGA = 80.21 deg (OUT) OUT HETGB = 81.96 deg (OUT) OUT LETGA = 79.83 deg (OUT) OUT LETGB = 79.08 deg (OUT) OUT EPHIN A-leak = 0.3680 B-leak = 0.0600 ACE Proton Flux = 1320 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 9.5E+6 LT 3.6E+8 Radiation Level OK EPHIN Geom = LARG E1300 = 2 LT 1318.52 (RADMON P4GM = 0 LT 3542.40 Triggers) P41GM = 0 LT 100.00 HRC SP PS = ON IM PS = OFF SP Top Step = 43 SP Bot Step = 54 Shield 1 HV = OFF Shield 2 HV = ON Shield 2 Stp = 8 Valid Event Rate 1 = - Valid Event Rate 2 = - Shield Event Rates = 3750 ACIS FP Temp = -119.7 Cold Radiator = -127.9 DEA Pwr = 43.1 DPA Pwr = 39.9 3) Notes from 9:00am meeting: Operations yesterday (Darrel Wicker): - 2 supports in last day, 2 dumps, all on 34m. No problems. - Cleared out SCS 128 and 129, uplinked new load segments. Will be replaced by TOO load when available. - Problem commanding observed, traced to ground system problem which was fixed. - CAP 596 (ACIS sqeegy mode test) run. Started early due to early COMM acquisition. Terminated raw mode readout earlier than planned due to ground data handling problems (see shift report M283 ACIS Addendum). Added a normal mode test te checkout health of CCD S0. Was OK. Mission Planning (Dan): - May03 TOO load producrs out at 8:45 this am. Load review scheduled for 1:00pm today. - Will start working May 07 load now. Spacecraft Engineering (Jeff): - Andy has made plots of ACIS FP temps and associated data (rad zones, CTI meas, etc.) for 30 perigee passages. Will be made available after review by Leon. SOT (Bill Podgorski): - Radiation levels up somewhat and bear watching. - Mark Bautz reports that data obtained in squeegy mode testing will be usable when data processing is revised to handle the compression state. Chip appears to be fine. ASCDSOPS(Jen Lauer): - Four quick looks today (see below) 3) Quick Look data review(no comment means OK): OBSID Target Time Instrument Comment ----- ------ -------------- --------------- --------------- 00649 V1223 SGR 2000:121:16:07 ACIS-S/HETG 00445 E0102-72.3 2000:121:10:58 ACIS-I (CAL) 00082 1E 0056.8-7154 2000:121:13:30 ACSI-S 00793 NGC 5236 (M83) 2000:120:13:40 ACIS-S