Mar_31_2000_L252.txt Shift L252 Start at 2000:091:12:30:00 GMT = 2000 Mar 31 7:30am EST End 2000 Mar 31 12:00pm EST See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Mar_31_2000_L252.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running MAR2600C, continue observing 'ABELL 2219' with ACIS-S, obsid 896. ORBITAL EVENTS: 2000:089:14:10:06.360 89 EAPOGEE ORBIT APOGEE 2000:090:21:54:37.898 89 EPERIGEE ORBIT PERIGEE 2000:092:05:37:28.131 90 EAPOGEE ORBIT APOGEE 2000:093:13:21:26.170 90 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 091:1230 Chandra Status at last pass was nominal(note 1) 907 AOS DSS-46 (Caberra) 091:1620 896 Chandra status at AOS was nominal (note 2) End of shift 091:1720 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra status at last pass: UTC 2000:091:14:50:01 (Fri Mar 31) f_ACE 2.00e+01 F_ACE 8.67e+05 R km 121449A OBT 2000:091:07:06:45 CTUVCDU 14237695 OBC s/w NRML FMT2_NORM CPEstat OBT 70873605.00 ONLVCDU 14237680 OBC Errs 0 OBSID 907 EPState SUN SIM TTpos 92903 HETG Angle 80.6 PCADMODE NPNT RA 218.142 Bus V 30.55 SIM FApos -535 LETG Angle 79.1 PCONTROL NPNT Dec -1.122 Bus I 27.22 AOFSTAR GUID Roll 96.905 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -2.10 Yaw Rate 0.08 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 7.66 Pitch Rate -0.09 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.15 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -42.47 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.78 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.66 SA Resolv 151.88 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 13.33 HRMA power 108.30 -Y SA Amps 13.53 EPHIN Geom LARG OBA power 129.80 +Y SA Temp 114.51 E1300 2 -Y SA Temp 114.81 P4GM 0 Roll Mom. -1.631 SCS 128 P41GM 0 Pitch Mom. -5.016 SCS 129 UpL Cmd Acc 55599 A-Leak 0.2760 Yaw Mom. -2.731 SCS 130 Cmd Rej A 148 B-Leak 0.0440 Expected RA, Dec, Roll (degrees): 218.13956, -1.12203, 96.90510 2) Chandra's state at 091:1640 was: WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 250.122270 deg 250.12228 DEC = 46.714405 deg 46.71440 ROLL = 115.740069 deg 115.74006 Format = 2 2 OBSID = 896 896 SIM FA = -467 -468 SIM TSC = 75624 75624 HETGA = 80.58 deg (OUT) OUT HETGB = 81.33 deg (OUT) OUT LETGA = 80.21 deg (OUT) OUT LETGB = 79.08 deg (OUT) OUT EPHIN A-leak = 0.2760 B-leak = 0.0440 ACE Proton Flux = 20 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 1.4E+5 LT 3.6E+8 Radiation Level OK EPHIN Geom = LARG E1300 = 3 LT 1318.52 (RADMON P4GM = 0 LT 118.08 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 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 3850 ACIS FP Temp = -119.7 (at 1650) Cold Radiator = -127.9 DEA Pwr = 51.1 DPA Pwr = 39.9 3) Notes from 9:00am meeting: Operations yesterday (Leon): - 3 supports last 24 hrs, all on 34m. Six SSR dumps, one bad had to be redone. Telemetry DB server 1 (DB1) failed over to DB2. Mission Planning (Dan): - Yesterday's review of the APR02 load revealed only 1 minor problem, which was corrected and rerun, no added review needed. Kevin ran diff on tlr file and new file was good. - Ken working APR09, process well underway. Spacecraft Engineering(Rino): - ACIS cold radiator went to 16.8 degrees above nominal during last perigee passage. ACIS FP went up to about -106.5 and just came down to -120 in time for post-rad zone CTI measurement. SOT (Bill Podgorski): - Radiation levels well below limits. ASCDSOPS(Joy Nichols): - No quick looks today. Having trouble processing 944 due to dropped frames. - Discussion of impacts of dropped frames at critical times. GOT - DB1 server down, on DB2. SGI called in to fix problem. Can reconfigure to use DB3 in an emergency, but this would impact testing. Meetings/etc (Leon McKendrick): - Safe mode AI review mtg at 10am. - Review SOP 45001, rad monitoring procedure, after safe modes mtg. - TRW planning mtg 1:30pm