SOT Shift Report Shift M614 Duration: 27 Mar 2001 17:00 EST - 27 Mar 2001 18:00 EST 27 Mar 2001 22:00 GMT - 27 Mar 2001 23:00 GMT SOT Lead: Tom Aldcroft Spacecraft/Aspect: FOT/Science Liason: HRC: ACIS: ======================================== Plan ---- Continue with MAR2601C load: Perigee passage, then high resolution spectroscopy of the X-ray burster 4U 1636-53. T_E26 00 CAL-ER 2001:086:21:03:15.426 6.7 -- -- T_X27 00 CAL-ER 2001:087:08:27:31.632 10.0 -- -- 01939 00 4U 1636-53 2001:087:11:50:26.383 27.0 ACIS-S HETG Events ------ 22:00 AOS on DSS-34 23:00 LOS Notes/Issues/Problems --------------------- - ACE radiation rates are high, but falling rapidly at this time (about a factor of 10 drop in the last 4-5 hours). However, from spaceweather.com: SOLAR ACTIVITY: In recent days the Boulder sunspot number has rocketed to 339, its highest level since July 2000. At least one large sunspot group has a complex magnetic field that could harbor energy for powerful solar flares. Forecasters estimate a 20% chance of an X-class eruption during the next 24 hours. - HETG will be inserted for the next two orbits - ACE 130-214 keV proton fluences (p/cm2-sr-MeV) and Costello predicted activity index OBSERVED SOT alert ------------ ------------- 2-hour Fluence: 2.3E8 3.6E+8 Attenuated Orbital Fluence: 2.4E9 1.0E+9 Kp: 7.0 6.0 - ACIS FP temperature -119.7 C Snapshot -------- Snapshot matches predicted state of Chandra: UTC 2001:086:22:08:00 (Mar27) f_ACE 1.39e+04 F_CRM 2.44e+09 Kp 7.0 R km 70600D OBT 2001:086:22:07:36 CTUVCDU 1949530 OBC s/w NRML FMT2_SSR CPEstat NORM OBT 102118056.63 ONLVCDU 1949520 OBC Errs 1 OBSID 61686 EPState SUN SIM TTpos -99616 HETG Angle 6.34 PCADMODE NPNT RA 89.997 Bus V 30.40 SIM FApos -467 LETG Angle 78.34 PCONTROL NPNT Dec -32.001 Bus I 32.28 AOFSTAR GUID Roll 264.040 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTNNN Dith Yang 5.26 Yaw Rate -0.33 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 7.16 Pitch Rate 0.11 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.38 Batt 1 SOC 100.00% Avg HRMA Temp 70.63 FSS Beta 3.85 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.21 SA Resolv 85.96 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 15.26 RadMon DISA HRMA power 33.00 SCS 128 ACT -Y SA Amps 16.05 EPHIN Geom LARG OBA power 106.00 SCS 129 ACT +Y SA Temp 112.35 E150 16.6 SCS 130 ACT -Y SA Temp 112.97 E300 0.2 Roll Mom. 0.655 SCS 107 INAC E1300 0.0 Pitch Mom. -2.084 UpL Cmd Acc 50402 EPH A-Leak 1.0200 P4GM 1.9 Yaw Mom. -0.500 Cmd Rej A 249 EPH B-Leak 0.2000 P41GM 0.0 Current Data: UTC 2001:086:22:08:00 (Mar27) f_ACE 1.39e+04 F_CRM 2.44e+09 Kp 7.0 R km 70600D Currently scheduled FPSI, OTG : HRC-S HETG Costello Kp : 7.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.39e+04 Orbit Start Time : 2001:084:13:29:00 Geocentric Distance (km), Orbit Leg : 71043 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 7.98006000000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.30014588467e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.44462435000e+09