SOT shift report 2002-04-19 L1002 Start at 2002:109:12:32 UTC = 2002 Apr 19 08:32 am EDT End 11:00 am EST SOT Lead Ed Kellogg PLAN ---- OBSID 02953,SGR A* 2002:109:10:58, ACIS-I NONE - SIMULTANEOUS X-RAY/RADIO MONITORING OF SAGITTARIUS A* RADIATION SUMMARY - Solar proton flux is above thresholds for concern, dropping slowly. We activated SCS 107 at 10:15 am EDT. Measurement Observed Limit ----------------- -------- ----- ACE 2 hr fluence **4.8e9** 3.6e8. GOES-8/P2 4-9 MeV protons `P4GM' 2.5 95. GOES-8/P5 40-80 MeV protons `P41GM' 0.01 0.78 *ACIS* Orbital fluence (since perigee) **2.2e9** 1.0e9 EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED RADMON limit ---------------------------------------- -------- ----------- E1300 (electrons, 2.64 - 6.18 MeV): 0.0 10.0 P4GM (protons, 5.0 - 8.3 MeV): 7.9 300.0 P41GM (protons, 41 - 53 MeV): 0.0 8.47 ACIS focal plane temperature -119.7 at 8:12 am EDT. REAL TIME OBSERVATIONS UTC OBSID ----------------------------------------------------------------- 3 fids, 5 stars 12:59 2953 SCS 107 sent, RADMON disabled 14:15 Notes from 9 am meeting ------------------------ OPS: Passes 3 over the last 3 day(s) Dumps current Data loss - Load is good -> 112:04:37 UTC CAPs - Next passes 1530, 0210, 0900 MP: The APR22 load was approved yesterday. At a 7:45 am EDT telecon, we decided to continue the current observation and prepare to send the command to activate SCS 107. At the 10:00 am EDT telecon, we decided to activate SCS 107 at 14:15 UTC, and replan to start again at ~2002:111:02:01 UTC, emergence from the radiation belts. S/C: The web display was peculiar - limits were not present. We suspect this is due to the new GRETA configuration. We will investigate this today. GOT: - Several workstations were transitioned to the new GRETA configuration yesterday, including ops3 and the SOT lead. A few still need to be done. DATA: - SOT: The CME shock from the 17 Apr. event passed SOHO at 07:58 UT. The ACE flux is high and dropping quite slowly. There was a C3.0 long duration event behind the southwest limb peaking at 16:12 UTC April 18. This may not impact the earth; we'll need to see the LASCO image to look for a halo. GOES x-ray flux is presently low, A class, short spikes. We checked out the SOT Lead GRETA workstation by running the O_STATUS window during a realtime pass. It looks fine. MEETINGS: -------- We will have a replan meeting as needed today; a review of the new load will follow before COB today. Data ---- On colossus (/dsops/GOT/input), - Apr 19 06:47 2002_108_1908_109_0337_Dump_EM_72438.gz Evaluation of QL data --------------------- Target: OBSID SI SOT Eval. ---------------- -- --------- FIELD-142549+353248:obs3130 ACIS-I OK NOTES/ISSUES/PROBLEMS --------------------- SNAPSHOT -------- UTC 2002:109:13:43:36 (Apr19) f_ACE 6.12e+04 F_CRM 3.19e+09 Kp 4.3 R km 135799A OBT 2002:109:13:43:04 CTUVCDU 15213055 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 135610984.57 ONLVCDU 15213040 OBC Errs 0 OBSID 2953 EPState SUN SIM TTpos 92904 HETG Angle 79.46 PCADMODE NPNT RA 266.431 Bus V 30.40 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -29.029 Bus I 27.73 AOFSTAR GUID Roll 84.973 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -1.91 Yaw Rate -0.13 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -3.30 Pitch Rate -0.02 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.37 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.37 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -32.56 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.81 SA Resolv 122.40 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 13.14 RadMon ENAB HRMA power 37.60 SCS 128 ACT -Y SA Amps 14.10 EPHIN Geom LARG OBA power 108.40 SCS 129 ACT +Y SA Temp 111.74 E150 71.2 SCS 130 ACT -Y SA Temp 112.66 E300 1.1 Roll Mom. 10.884 SCS 107 INAC E1300 0.0 Pitch Mom. 5.352 UpL Cmd Acc 2093 EPH A-Leak 0.6600 P4GM 7.9 Yaw Mom. -13.523 Cmd Rej A 83 EPH B-Leak 0.1280 P41GM 0.0 Explanation Current Data: UTC 2002:109:13:43:36 (Apr19) f_ACE 6.12e+04 F_CRM 3.19e+09 Kp 4.3 R km 135799A Currently scheduled FPSI, OTG : ACIS-I NONE Costello Kp : 5.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 6.48e+04 GOES-8 P2 flux, in RADMON P4GM units : 0.03 GOES-10 P2 flux, in RADMON P4GM units : 0.03 GOES-8 P5 flux, in RADMON P41GM units : 0.01 GOES-10 P5 flux, in RADMON P41GM units : 0.01 Orbit Start Time : 2002:108:07:14:01 Geocentric Distance (km), Orbit Leg : 135779 A CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.33921510000e+05 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.33921510000e+05 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 5.49669120000e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.19121878200e+09 ************************************************************************** See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/