May_24_2002_M1037.txt Shift M1037 Start at 2002:144:18:00:00 UTC = 2002 May 24 2:00pm EDT End 2002 May 24 4:00pm EDT SOT shift report 2002-05-24 M1037 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/May_24_2002_M1037.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running MAY2402A load. Seq # ObsID It Constr. Target Start Time SI Grat RA Dec Roll Slew --------------------------------------------------------------------------------------------------------------- 600280 03663 00 2 SGR A* 2002:144:12:13:00.000 38.3 ACIS-I NONE 266.4284 -29.0305 75.31 0.00 ---- 61185 00 CAL-ER 2002:144:23:40:33.799 7.8 -- -- 352.0000 -11.5000 115.30 80.71 ---- 61184 00 CAL-ER 2002:145:09:20:47.680 20.8 -- -- 290.0000 -30.0000 89.78 60.14 600280 03392 00 2 SGR A* 2002:145:15:35:27.680 168.8 ACIS-I NONE 266.4284 -29.0305 75.31 20.68 ORBITAL EVENTS: 2002:143:23:58:55.728 386 EAPOGEE ORBIT APOGEE 2002:145:07:42:09.384 386 EPERIGEE ORBIT PERIGEE 2002:146:15:26:04.168 387 EAPOGEE ORBIT APOGEE 2002:147:23:10:16.222 387 EPERIGEE ORBIT PERIGEE 2002:149:06:53:37.956 388 EAPOGEE ORBIT APOGEE 2002:150:14:38:32.472 388 EPERIGEE ORBIT PERIGEE 2002:151:22:21:53.835 389 EAPOGEE ORBIT APOGEE 2002:153:06:06:07.830 389 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 144:1800 AOS DSS-34 (Canberra 34m) 144:1835 3663 LOS DSS-34 (Canberra 34m) 144:1935 End of shift 144:2000 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2002:144:18:45:07 (May24) f_ACE 4.71e+03 F_CRM 5.01e+08 Kp 4.0 R km 99709D OBT 2002:144:18:44:33 CTUVCDU 10307472 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 138653073.62 ONLVCDU 10307464 OBC Errs 0 OBSID 3663 EPState SUN SIM TTpos 92903 HETG Angle 79.46 PCADMODE NPNT RA 266.427 Bus V 30.08 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -29.029 Bus I 31.78 AOFSTAR GUID Roll 75.305 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang 2.38 Yaw Rate -0.13 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -5.43 Pitch Rate -0.02 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -49.62 Batt 1 SOC 100.00% Avg HRMA Temp 70.63 FSS Beta -49.79 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.50 SA Resolv 155.89 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 15.66 RadMon ENAB HRMA power 32.70 SCS 128 ACT -Y SA Amps 16.25 EPHIN Geom LARG OBA power 183.40 SCS 129 ACT +Y SA Temp 109.58 E150 117.8 SCS 130 INAC -Y SA Temp 110.20 E300 1.9 Roll Mom. 6.664 SCS 107 INAC E1300 0.0 Pitch Mom. -10.126 UpL Cmd Acc 564 EPH A-Leak 0.3680 P4GM 16.5 Yaw Mom. 7.369 Cmd Rej A 164 EPH B-Leak 0.0720 P41GM 0.2 Current Data: UTC 2002:144:18:45:07 (May24) f_ACE 4.71e+03 F_CRM 5.01e+08 Kp 4.0 R km 99709D Currently scheduled FPSI, OTG : ACIS-I NONE Costello Kp : 4.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 4.71e+03 GOES-8 P2 flux, in RADMON P4GM units : 0.00 GOES-10 P2 flux, in RADMON P4GM units : 0.00 GOES-8 P5 flux, in RADMON P41GM units : 0.02 GOES-10 P5 flux, in RADMON P41GM units : 0.01 Orbit Start Time : 2002:142:16:19:01 Geocentric Distance (km), Orbit Leg : 99776 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 1.07826000000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.07826000000e+04 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 7.10204992710e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 5.00632389300e+08 2) Status at 144:1900 Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 266.4284 deg 266.4284 DEC = -29.0305 deg -29.0305 ROLL = 75.31 deg 75.31 Format = 2 2 OBSID = 3663 3663 SIM FA = -535 -536 SIM TSC = 92903 92904 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 = ON, 42, 53 SP PS = OFF, 0, 0 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 = -119.7 DEA Pwr = 48.2 DPA Pwr = 40.5 Science State = Science Active 3) Radiation The Chandra radiation environment is high and decreasing. The radiation decline is slow but steady. However, www.spaceweather.com reports some potential for large solar flares over the long weekend. ACE 2 hr fluence is 3.6e7 vs. threshold 3.6e8. CRM-based orbital fluence is 5.0e8 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.