Apr_19_2002_M1002.txt Shift M1002 Start at 2002:109:19:30:00 UTC = 2002 Apr 19 3:30pm EST End 2002 Apr 19 5:30pm EST SOT shift report 2002-04-19 M1002 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_19_2002_M1002.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - No load running. Stopped APR1702B load this morning by commanding SCS107, because of high radiation. A decision will be made later about resuming science with the APR2002 load, which has RX J170930.2-263927 as its first science target. ORBITAL EVENTS: 2002:109:14:56:09.448 373 EAPOGEE ORBIT APOGEE 2002:110:22:41:07.228 373 EPERIGEE ORBIT PERIGEE 2002:112:06:24:25.119 374 EAPOGEE ORBIT APOGEE 2002:113:14:08:51.015 374 EPERIGEE ORBIT PERIGEE 2002:114:21:52:03.208 375 EAPOGEE ORBIT APOGEE 2002:116:05:35:14.788 375 EPERIGEE ORBIT PERIGEE 2002:117:13:19:04.582 376 EAPOGEE ORBIT APOGEE 2002:118:21:02:08.143 376 EPERIGEE ORBIT PERIGEE 2002:120:04:45:53.614 377 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- AOS DSS-34 (Canberra 34m) 109:1530 N/A Start Shift 109:1930 LOS DSS-34 (Canberra 34m) 109:2100 End of shift 109:2130 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2002:109:19:46:06 (Apr19) f_ACE 5.13e+04 F_CRM 3.50e+09 Kp 5.0 R km 133718D OBT 2002:109:19:45:46 CTUVCDU 15298047 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 135632746.86 ONLVCDU 15298032 OBC Errs 0 OBSID 2953 EPState SUN SIM TTpos -99616 HETG Angle 79.46 PCADMODE NPNT RA 266.435 Bus V 29.93 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -29.027 Bus I 35.84 AOFSTAR GUID Roll 84.974 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc NNNTTTTT Dith Yang 7.36 Yaw Rate -0.03 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 6.66 Pitch Rate -0.08 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.15 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.40 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -32.82 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 50.97 SA Resolv 122.40 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 17.43 RadMon DISA HRMA power 45.40 SCS 128 INAC -Y SA Amps 17.82 EPHIN Geom LARG OBA power 184.50 SCS 129 INAC +Y SA Temp 111.74 E150 57.2 SCS 130 INAC -Y SA Temp 112.66 E300 0.8 Roll Mom. 10.972 SCS 107 DISA E1300 0.0 Pitch Mom. 3.416 UpL Cmd Acc 2158 EPH A-Leak 1.0200 P4GM 29.0 Yaw Mom. -13.183 Cmd Rej A 96 EPH B-Leak 0.2160 P41GM 0.0 Current Data: UTC 2002:109:19:46:06 (Apr19) f_ACE 5.13e+04 F_CRM 3.50e+09 Kp 5.0 R km 133718D Currently scheduled FPSI, OTG : HRC-S NONE Costello Kp : 5.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 5.13e+04 GOES-8 P2 flux, in RADMON P4GM units : 0.16 GOES-10 P2 flux, in RADMON P4GM units : 0.16 GOES-8 P5 flux, in RADMON P41GM units : 0.01 GOES-10 P5 flux, in RADMON P41GM units : 0.01 Orbit Start Time : 2002:108:07:14:01 Geocentric Distance (km), Orbit Leg : 133749 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.15611100000e+05 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 7.89206175060e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.49836978300e+09 2) Status at 109:1950 Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 0 0 RA = 266.4326 deg 266.4326 DEC = -29.0284 deg -29.0284 ROLL = 84.97 deg 84.97 Format = 2 2 OBSID = 2953 2953 SIM FA = -535 -536 SIM TSC = -99616 -99616 HETGA = 79.46 deg (OUT) OUT HETGB = 80.21 deg (OUT) OUT LETGA = 78.71 deg (OUT) OUT LETGB = 77.96 deg (OUT) OUT HRC IM PS = OFF, 0, 0 SP PS = ON, 43, 54 Shield 1 HV = OFF, 0 Shield 2 HV = OFF, 0 Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 0 ACIS FP Temp = -119.9 DEA Pwr = 34.2 DPA Pwr = 12.5 Science State = Science Idle 3) Radiation Chandra Radiation environment is high and decreasing. We have stopped science because of the effects of the CME of April 17. ACE 2 hr fluence is 3.4e8 vs. threshold 3.6e8. CRM-based orbital fluence is 3.5e9 vs. threshold 3.0e9. Chandra is in the magnetosphere. 4) Quick Look data review (OK unless noted): Seq # ObsID It Constr. Target Start Time SI Grat Comment ------------------------------------------------------------------------------------------ There were no new quick look data in this shift.