SOT Shift Report Shift M617 Duration: 30 Mar 2001 17:00 EST - 30 Mar 2001 18:00 EST 30 Mar 2001 22:00 GMT - 30 Mar 2001 23:00 GMT SOT Lead: Tom Aldcroft Spacecraft/Aspect: FOT/Science Liason: HRC: ACIS: ======================================== Plan ---- Continue with MAR2601C load and watch radiation rates. Currently in perigee, then on to NGC 3783 to study the the variable UV / X-ray absorption in NGC 3783 with simultaneous Chandra/HST observations. Next comm passes: AOS LOS 2001 090 0550 0750 DSS-66 CHDR TKG PASS (00:50 EST tonight) 2001 090 1640 1840 DSS-46 CHDR TKG PASS 2001 091 0100 0200 DSS-54 CHDR TKG PASS UPL 2001 091 1005 1105 DSS-54 CHDR TKG PASS UPL Events ------ 22:00 AOS on DSS-54 23:05 LOS Notes/Issues/Problems --------------------- - ACIS FP temperature -119.9 C - ACE electron rates remain high. ACE proton rates are high and rising slowly. The 130-214 keV flux has been holding steady at around 10000 for several hours now. - The next observation (NGC 3783) is coordinated with HST. - ACE 130-214 keV proton fluences (p/cm2-sr-MeV) and Costello predicted activity index OBSERVED SOT alert ------------ ------------- 2-hour Fluence: 7.4E7 3.6E+8 Orbital Fluence: 0.0 1.0E+9 Kp: 2.3 6.0 Space Weather Forecast (Mar 30 at 22:00 UTC) -------------------------------------------- Solar Activity Forecast: Solar activity is expected to remain high. Region 9393 remains the center of a complex likely to produce M-Class events with a very good chance of one or more Class X events over the next three days as the region moves away from central meridian but remains in a prime location to produce strong to severe effects at Earth. Over a dozen sunspot groups are visible and may produce Class M events. Geophysical Activity Forecast: Effects from CME's from the events on 29 March are expected to begin early on 31 March. Model runs predict an earlier arrival at Earth late on 30 March. ACE energetic protons are rising slowly indicating the disturbance is still some distance away at 30/2100 UT. Any geomagnetic storm that results is expected to range from minor to major. The small >30 MeV proton event in progress is expected to continue its slow decline with a chance of an enhancement with the passage of the interplanetary shock. Major activity from Region 9393 may well produce additional proton events and geomagnetic activity at Earth. Snapshot -------- Snapshot matches expected configuration: UTC 2001:089:22:35:01 (Mar30) f_ACE 1.57e+04 F_CRM 0.00e+00 Kp 2.3 R km 34569A OBT 2001:089:22:34:30 CTUVCDU 2967339 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 102378870.31 ONLVCDU 2967328 OBC Errs 0 OBSID 61682 EPState SUN SIM TTpos -99616 HETG Angle 6.34 PCADMODE NPNT RA 75.002 Bus V 30.55 SIM FApos -467 LETG Angle 78.34 PCONTROL NPNT Dec 40.002 Bus I 28.24 AOFSTAR GUID Roll 283.074 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTNNN Dith Yang -5.35 Yaw Rate -0.13 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -7.86 Pitch Rate -0.00 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.30 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 20.91 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 51.29 SA Resolv 68.86 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 13.53 RadMon DISA HRMA power 0.00 SCS 128 INAC -Y SA Amps 14.30 EPHIN Geom LARG OBA power 35.10 SCS 129 ACT +Y SA Temp 112.35 E150 1069.3 SCS 130 ACT -Y SA Temp 112.97 E300 20.0 Roll Mom. 3.590 SCS 107 INAC E1300 0.5 Pitch Mom. 1.585 UpL Cmd Acc 51184 EPH A-Leak 1.0200 P4GM 55.0 Yaw Mom. 1.171 Cmd Rej A 58 EPH B-Leak 0.2120 P41GM 0.0 Current Data: UTC 2001:089:22:35:01 (Mar30) f_ACE 1.57e+04 F_CRM 0.00e+00 Kp 2.3 R km 34569A Currently scheduled FPSI, OTG : HRC-S HETG Costello Kp : 2.33 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.57e+04 Orbit Start Time : 2001:089:20:24:00 Geocentric Distance (km), Orbit Leg : 34423 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00