SOT Shift Report 2004-03-31 M1714 Duration: 31 Mar 2004 15:00 EST - 31 Mar 2004 16:00 EST 31 Mar 2004 20:00 GMT - 31 Mar 2004 21:00 GMT SOT Lead: Tom Aldcroft ======================================== Plan ---- Continue with MAR2904C load: Finish LETG observation trying to confirm Cyclotron Absorption Line in RBS1223; then into perigee: 04595 RBS1223 2004:090:20:27:29.563 90.5 HRC-S LETG T_E42 R (60300) 2004:091:22:27:22.325 10.2 -- -- GG_42 R (60299) 2004:092:02:32:34.056 3.6 -- -- T_X43 R (60298) 2004:092:11:50:35.733 7.1 -- -- Events ------ 20:00 AOS on DSS-34 21:00 LOS Notes/Issues/Problems --------------------- - EPHIN P4GM rates elevated coming into perigee with no corresponding trend in any GOES rates, possibly indicating a puffed up radiation belt. EPHIN P4GM got as high as 90 (versus RADMON trip limit of 300) just before LOS. Rad-zone entry is at 091:21:42. - ACE soft proton rates are slightly elevated EPHIN rates (cts/cm^2-s-sr) OBSERVED RADMON limit ------------ ------------- E1300 (electrons, 2.64 - 6.18 MeV): 1.0 10.0 P4GM (protons, 5.0 - 8.3 MeV): 90.4 300.0 P41GM (protons, 41 - 53 MeV): 0.0 8.47 ACE 130-214 keV proton fluences (p/cm2-sr-MeV) and Costello predicted activity index OBSERVED SOT alert ------------ ------------- 2-hour Fluence: 4.7E5 3.6E+8 Orbital Fluence (CRM): 4.5E7 3.0E+9 Kp: 1.7 6.0 Snapshot -------- UTC 2004:091:21:03:03 (Mar31) f_ACE 5.90e+01 F_CRM 4.49e+07 Kp 1.7 R km 78603D OBT 2004:091:21:00:03 CTUVCDU 3722751 OBC s/w NRML FMT1_NORM CPEstat NORM OBT 197154003.66 ONLVCDU 3722736 OBC Errs 0 OBSID 4595 EPState SUN SIM TTpos -99616 HETG Angle 79.46 PCADMODE NPNT RA 197.232 Bus V 29.61 SIM FApos -990 LETG Angle 4.09 PCONTROL NPNT Dec 21.456 Bus I 29.50 AOFSTAR GUID Roll 156.746 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -19.93 Yaw Rate -0.15 HRC-S HV ON ACA CCD Temp -15.6 Dith Zang -0.57 Pitch Rate -0.24 OBSMode OBSV ACA Int Time 1.698 Roll Rate 0.14 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -49.63 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.91 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.37 SA Resolv 153.73 Batt 3 SOC 100.00% Cold Rad -125.5 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 13.72 RadMon ENAB HRMA power 48.80 SCS 128 ACT -Y SA Amps 15.26 EPHIN Geom SMAL OBA power 43.60 SCS 129 ACT +Y SA Temp 113.89 E150 52097.6 SCS 130 ACT -Y SA Temp 113.89 E300 177.7 Roll Mom. -1.210 SCS 107 INAC E1300 1.0 Pitch Mom. -7.711 UpL Cmd Acc 48593 EPH A-Leak 1.0200 P4GM 90.4 Yaw Mom. 6.693 Cmd Rej A 20 EPH B-Leak 0.2720 P41GM 0.0 EPH temp 62.39 Gyro 1 Curr 1 9.60 Roll Bias -0.6200 M Unload MON Gyro 1 Curr 2 9.60 Pitch Bias -1.9093 TSC Move STOP Gyro 2 Curr 1 103.20 Yaw Bias -0.9602 FA Move STOP Gyro 2 Curr 2 98.40 OTG Move DISA Explanation Current Data: UTC 2004:091:21:07:02 (Mar31) f_ACE 5.90e+01 F_CRM 4.49e+07 Kp 1.7 R km 78284D Currently scheduled FPSI, OTG : HRC-S LETG Estimated Kp : 1.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 5.90e+01 GOES-10 P2 flux, in RADMON P4GM units : 0.00 GOES-12 P2 flux, in RADMON P4GM units : 0.00 GOES-10 P5 flux, in RADMON P41GM units : 0.01 GOES-12 P5 flux, in RADMON P41GM units : 0.02 Orbit Start Time : 2004:089:15:09:01 Geocentric Distance (km), Orbit Leg : 78443 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 1.14793200000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.58846632776e+10 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 4.48633075680e+07