SOT Shift Report Shift M448 Duration: 12 Oct 2000 16:30 EDT - 12 Oct 2000 19:00 EDT 12 Oct 2000 20:30 GMT - 12 Oct 2000 23:00 GMT SOT Lead: Tom Aldcroft Spacecraft/Aspect: FOT/Science Liason: HRC: ACIS: ======================================== Plan ---- Continue with OCT0900b load, to study the shape of the dark matter distribution in the lenticular galaxy NGC720: 00492 00 NGC 720 2000:286:21:26:30.000 40.0 ACIS-S NONE <- Current 00430 00 A521 2000:287:09:01:34.890 39.6 ACIS-S NONE 01023 00 SMC X-1 2000:287:20:34:30.000 6.0 ACIS-S NONE Events ------ 21:00 AOS on DSS-24 22:00 LOS Notes/Issues/Problems --------------------- - ACE rates are high and increasing rapidly. Current average flux (130-214 keV protons) is 83700. Expect two-hour fluence alerts soon unless the trend reverses. DAS has called for a telecon at 10pm tonight if alarms go off or rates are still high or increasing. Note that Chandra should be in the magnetosheath, unaffected by radiation that ACE measures, until about 287:06. - EPHIN rates (cts/cm^2-s-sr) OBSERVED RADMON limit ------------ ------------- E1300 (electrons, 2.64 - 6.18 MeV): 0.0 10.0 P4GM (protons, 5.0 - 8.3 MeV): 0.8 300.0 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: 2.6E8 3.6E+8 Orbital Fluence: 0.0 1.0E+9 Kp: 1.3 6.0 Snapshot -------- UTC 2000:286:22:00:03 (Oct12) f_ACE 5.37e+04 F_ACE 1.55e+08 Kp 1.7 R km 77064A OBT 2000:286:21:59:10 CTUVCDU 13086079 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 87775150.38 ONLVCDU 13086064 OBC Errs 0 OBSID 492 EPState SUN SIM TTpos 75623 HETG Angle 79.8 PCADMODE NPNT RA 28.266 Bus V 30.24 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -13.750 Bus I 30.51 AOFSTAR GUID Roll 25.221 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang 7.99 Yaw Rate -0.14 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 3.11 Pitch Rate -0.00 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.10 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -49.62 Batt 1 SOC 100.00% Avg HRMA Temp 70.65 FSS Beta -49.81 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.34 SA Resolv 156.49 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 14.88 RADMON ENAB HRMA power 61.60 SCS 128 ACT -Y SA Amps 15.85 EPHIN Geom LARG OBA power 99.20 SCS 129 DISA +Y SA Temp 113.58 E150 7.4 SCS 130 ACT -Y SA Temp 114.20 E300 0.2 Roll Mom. 7.720 E1300 0.0 Pitch Mom. 3.439 UpL Cmd Acc 18 EPH A-Leak 0.1520 P4GM 0.6 Yaw Mom. -9.420 Cmd Rej A 213 EPH B-Leak 0.0280 P41GM 0.0 Current Data: UTC 2000:286:22:08:03 (Oct12) f_ACE 6.26e+04 F_ACE 1.74e+08 Kp 1.7 R km 77908A Currently scheduled FPSI, OTG : ACIS-S NONE Costello Kp : 1.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 6.26e+04 Orbit Start Time : 2000:286:14:29:00 Geocentric Distance (km), Orbit Leg : 77486 A CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 2.89594390652e+01 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 2.89594390652e+01 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 4.62124616231e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.91284443719e+05