Aug_02_2000_L376.txt Shift L376 Start at 2000:215:11:30:00 GMT = 2000 Aug 2 7:30am EDT End 2000 Aug 2 11:30am EDT SOT shift report 2000-08-02 L376 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_02_2000_L376.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running JUL3000B on ascending leg just out of radiation zone. Performing ACIS CTI (obsid 61977). Next target is LILLER 1 with HRC-I (obsid 674) at 215:1243. ACE Radiation is very low. COMM at 215:1430. ORBITAL EVENTS: 2000:212:13:25:18.690 135 EPERIGEE ORBIT PERIGEE 2000:212:14:28:28.044 136 XP1RADZ0 PROTON1 RADIATION EXIT0 2000:212:17:42:28.044 136 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2000:213:21:08:58.436 136 EAPOGEE ORBIT APOGEE 2000:214:22:53:37.371 136 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2000:215:04:54:33.404 136 EPERIGEE ORBIT PERIGEE 2000:215:09:55:37.371 137 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2000:216:12:37:31.325 137 EAPOGEE ORBIT APOGEE 2000:217:14:27:15.524 137 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2000:217:20:21:59.836 137 EPERIGEE ORBIT PERIGEE 2000:217:20:31:15.524 137 EP1RADZ0 PROTON1 RADIATION ENTRY0 2000:217:21:19:15.524 137 XP1RADZ0 PROTON1 RADIATION EXIT0 2000:218:00:01:15.524 138 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2000:219:04:05:20.035 138 EAPOGEE ORBIT APOGEE 2000:220:06:22:33.052 138 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2000:220:11:00:33.052 138 EP1RADZ0 PROTON1 RADIATION ENTRY0 2000:220:11:49:02.866 138 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 215:1130 Status at last COMM was nominal (see note 1) AOS DSS-54 (Madrid 34m) 215:1430 Status at AOS (see note 3) LOS DSS-54 215:1530 End of shift 215:1530 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at end of last COMM: UTC 2000:215:08:40:01 (Aug 2) f_ACE 1.47e+02 F_ACE 0.00e+00 Kp 3.3 R km 48980A OBT 2000:215:08:38:30 CTUVCDU 5736703 OBC s/w NRML FMT2_NORM CPEstat OBT 81592710.86 ONLVCDU 5736688 OBC Errs 0 OBSID 61978 EPState SUN SIM TTpos -99616 HETG Angle 80.2 PCADMODE NPNT RA 180.847 Bus V 30.87 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -41.839 Bus I 31.27 AOFSTAR GUID Roll 227.768 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTNNN Dith Yang 3.91 Yaw Rate -0.12 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 7.89 Pitch Rate 0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.33 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.62 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 15.52 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 51.13 SA Resolv 74.63 Batt 3 SOC 100.00% Cold Rad -123.1 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 14.68 HRMA power 48.50 SCS 128 -Y SA Amps 16.05 EPHIN Geom SMAL OBA power 99.20 SCS 129 +Y SA Temp 108.17 E150 292682.9 SCS 130 -Y SA Temp 108.44 E300 717.8 Roll Mom. -2.923 E1300 0.9 Pitch Mom. 17.553 UpL Cmd Acc 24470 EPH A-Leak 0.5320 P4GM 2466.1 Yaw Mom. -0.006 Cmd Rej A 22 EPH B-Leak 0.0920 P41GM 0.0 Expected RA, Dec, Roll (degrees): 180.85002, -41.83999, 227.42688 2) Notes from 9:00am meeting: Operations (Chuck): - 2 26m supports(4 hrs)/4 dumps last 24 hrs, all OK - Uplinked 1 load segment, good thru 218:1630 - Problem with DSS-46 last night, no telemetry for first 14 mins of support. Swapped telemetry channels and problem went away. Mission Planning (Dan/Ken/Kevin): - Revised load without comet obs has been done and sent out for load review today at 2:00pm. - Had to expand some cal obs to fill orbit. Was OK with SOT MP. - LETG retraction time moved up about a day. Exact time will be made available after DSN coverage obtained. - Finished off-line system testing on 3rd string. All is OK. Still waiting on new online computation software for 3.7. - Need some definition of HETG usage for upcoming load (i.e., do we leave it in thru perigee) Spacecraft Engineering (Jeff): - Solar array limit violations yesterday were due to two sources: 1) Pitch angle < 47 degrees (valid obs) but produces a yellow caution 2) One display had a software error (comparing deg to radians) - ASVT testing of SA off-point software identified problems between EPS and safing, must rebuild products and retest. SOT (Bill Podgorski): - Radiation levels VERY low again. - OTG telecon at 3:00pm today DSOPS(Joy): - Two quick looks (see below) - Comet obs have sources. GOT(Mike) - All is OK. Meetings, etc: - 1:00pm FOT internal meeting - 2:00pm load review - 3:00pm OTG telecon 3) Status at AOS(215:1430): WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 263.330165 deg 263.32861 DEC = -33.374855 deg -33.37057 ROLL = 276.867007 deg 276.86655 Format = 2 2 OBSID = 674 674 SIM FA = -715 -716 SIM TSC = -50503 -50504 HETGA = 80.21 deg (OUT) OUT HETGB = 80.58 deg (OUT) OUT LETGA = 79.46 deg (OUT) OUT LETGB = 78.33 deg (OUT) OUT EPHIN A-leak = 0.3840 B-leak = 0.0720 ACE Proton Flux = 100 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 7.2E+5 LT 3.6E+8 Radiation Level OK Kp Index (Costello) = 3.00 LT 6 is OK EPHIN Geom = LARG E150 = 27.8 E300 = 0.6 E1300 = 0.0 LT 10.00 (RADMON P4GM = 0.3 LT 300.00 Triggers) P41GM = 0.0 LT 8.47 HRC SP PS = OFF IM PS = ON IM Top Step = 77 IM Bot Step = 89 Shield 1 HV = OFF Shield 2 HV = ON Valid Event Rate 1 = 101 Valid Event Rate 2 = 85 Shield Event Rates = 3100 ACIS FP Temp = not available from GSE Cold Radiator = -127.9 DEA Pwr = 49.6 DPA Pwr = 41.5 Science State = Science Active 4) Quick Look data review(OK unless noted): Seq # ObsID It Target start time SI Grat Comments ----------------------------------------------------------------------------------------- 300004 00079 00 NGC 6397 2000:213:15:49:03.589 49.0 ACIS-I NONE 700088 00416 00 NGC 6500 2000:214:06:02:22.226 2.0 ACIS-S NONE 100004 00586 00 Comet c/LINEAR 1999 2000:214:13:12:56.797 1.0 ACIS-S NONE See some objects