SOT shift report 2001-09-17 L788 Start at 2001:260:12:45 GMT = 2001 Sep 17 08:45 am EDT End 11:00 am EDT SOT Lead Ed Kellogg PLAN ---- OBSID 01886,TAU CETI 2001:260:12:45,ACIS-S NONE - WHEN THE DYNAMO SPUTTERS:THE CORONA OF AN EXTREMELY INACTIVE (MAUNDER MINIMUM?) STAR - 1) study the properties of the weakest dwarf star coronae, 2) to investigate the coronal product of a predominantly turbulent dynamo in a high mass star, exploring its dependence on rotation and mass, and 3) to potentially study (indirectly) the properties of the solar corona during magnetic minima. RADIATION SUMMARY Observed Limit ----------------- -------- ----- ACE 2 hr fluence 7.4e5 3.6e8. GOES-8/P2 4-9 MeV protons `P4GM' 0.1 95 GOES-8/P5 40-80 MeV protons `P41GM' 0.01 0.78 *ACIS* Orbital fluence (since perigee) 2.4e7 1.0e9. EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED RADMON limit ---------------------------------------- -------- ----------- E1300 (electrons, 2.64 - 6.18 MeV): 0 10.0 P4GM (protons, 5.0 - 8.3 MeV): 0.1 300.0 P41GM (protons, 41 - 53 MeV): 0 8.47 ACIS focal plane temperature -119.9 at 7:43 am EDT. REAL TIME OBSERVATIONS GMT OBSID ----------------------------------------------------------------- (no pass) Notes from 9 am meeting ------------------------ OPS: Passes 9 over the last 3 day(s) Dumps current Data loss nonr Load is good -> 264/0300 CAPs none Next passes 2045 MP: SEP24 load email review today S/C: There will be all-day SIMs Wednesday and Thursday. GOT: - DATA: Lots of nice data SOT: Proton flux is low. A flare on 14 Sep triggered a large filament eruption producing a CME which could impact Earth on September 17 or 18. Prediction for CME today: 20-60%. MEETINGS -------- CAP review Tues 1:00 pm: Lunar contingency manual maneuver Data ---- On colossus (/dsops/GOT/input), - 2001_259_1905_260_0421_Dump_EM_87282.gz Evaluation of QL data --------------------- Target: OBSID SI SOT Eval. ---------------- -- --------- A 3112: 2516 ACIS-S OK N49B: 1041 ACIS-S OK 1E1740.7-2942: 2491 ACIS-S/HETG OK AGX J045301-5304:2258 ACIS-I OK Prox Cen: 2388 ACIS-S/HETG OK NOTES/ISSUES/PROBLEMS --------------------- Chandra's state was: (http://cxc.harvard.edu/mta_days/MIRROR/Snap/snap.cgi) --------------------------------------------------------------------------- UTC 2001:260:11:46:34 (Sep17) f_ACE 9.67e+01 F_CRM 3.82e+08 Kp 2.7 R km 138156D OBT 2001:260:11:43:14 CTUVCDU 10139391 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 117114194.13 ONLVCDU 10139376 OBC Errs 0 OBSID 1034 EPState SUN SIM TTpos 75623 HETG Angle 79.84 PCADMODE NPNT RA 133.039 Bus V 30.71 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec -46.298 Bus I 27.98 AOFSTAR GUID Roll 130.459 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -4.29 Yaw Rate -0.13 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 7.04 Pitch Rate -0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.69 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 28.84 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.29 SA Resolv 60.98 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 ENAB HRMA power 115.00 SCS 128 ACT -Y SA Amps 14.30 EPHIN Geom LARG OBA power 8.10 SCS 129 ACT +Y SA Temp 110.82 E150 5.2 SCS 130 ACT -Y SA Temp 111.43 E300 0.2 Roll Mom. -6.588 SCS 107 INAC E1300 0.0 Pitch Mom. -6.440 UpL Cmd Acc 42932 EPH A-Leak 1.0200 P4GM 0.1 Yaw Mom. -2.026 Cmd Rej A 70 EPH B-Leak 0.1960 P41GM 0.0 Explanation Current Data: UTC 2001:260:13:25:42 (Sep17) f_ACE 8.66e+01 F_CRM 3.97e+08 Kp 2.0 R km 137376D Currently scheduled FPSI, OTG : ACIS-S NONE Costello Kp : 2.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 8.66e+01 Orbit Start Time : 2001:259:02:29:01 Geocentric Distance (km), Orbit Leg : 137397 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.19919000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.19919000000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.56340972595e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.96937161595e+08 ************************************************************************** See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Sep_17_2001_L788.txt