SOT shift report 2004-07-26 L1831 Written at 2004:208:13:38 UTC = 09:38 AM Jul-26-2004 EDT End 11:00:00 AM EDT SOT Lead: Ed Kellogg PLAN ---- OBSID None - we are recovering from an SCS 107 radiation shutdown. RADIATION SUMMARY ----------------- Solar soft proton flux is Moderate. (http://www.srl.caltech.edu/ACE/ASC/) Significant solar activity: The solar flare activity level was high. A total of 5 C and 4 M class events were recorded yesterday. (http://www.dxlc.com/solar/) CMEs reported for past two days: July 25: A large full halo CME was observed after a long duration M1 proton event after noon... There may have been a CME associated with the major flare earlier in the day... (http://www.dxlc.com/solar/- Jan Alvestad) Radiation Measurement Observed Observed/Limit --------------------- -------- -------------- ACE 2hr fluence 6.74e+06 1/53.4 (http://www.srl.caltech.edu/ACE/ASC/) GOES-10/P2 4-9 MeV protons `P4GM' 1.68e+00 1/57 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) GOES-10/P5 40-80 MeV protons `P41GM' 1.26e-02 1/62 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) *ACIS* Orbital fluence (since perigee) 1.01E+09 1/1 (http://asc.harvard.edu/mta/alerts/current.dat) EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED RADMON limit or observed/limit ---------------------------------------- -------- ----------------------------- E1300 (2.64-6.18 MeV electrons): 0.5 1/20 P4GM (5-8.3 MeV protons): 1.3 1/231 P41GM (41-53 MeV protons): 0.1 1/85 (http://cxc.harvard.edu/cgi-gen/mta/Snap/snap.cgi?action=Latest) ACIS focal plane temperature -119.9 C, at dddZhh:mm:ss 208Z12:50:27 (http://asc.harvard.edu/acis/RT/acisrt.html) REAL TIME OBSERVATIONS UTC OBSID ---------------------- --- ----- Normal sun mode recovery step 7 1241 4996 Notes from 9 am meeting ------------------------ OPS: Passes 10 Supports Completed (9 34 Meter, 1 26 Meter) from 205/1300 - 208/1300 Dump status Current Data loss Radiation shutdown Load is good -> (no load) Last CAPs Eclipse contingency #921 2004:208:04:29:11 Normal Sun Mode Recovery After Earth Eclipse. #927 2004:208:12:02:24 Notes There were three DSS DRs over the weekend: DSS 46 had degraded operation, DSS 53 had no uplink modulation, and DSS 34 had realtime TLM dropouts. Next passes 2004:208:16:35 2004:209:02:45 2004:209:12:50 MP: We are planning to pick up observations on rad zone exit at 18:30 UTC. We'll put the load onboard at the 16:35 pass. The temperature and momentum are good - no changes needed. The pitch angle was 90 deg at 07:12 UTC. S/C: The shutdown, triggered by E1300 exceeding threshold, occurred at 2004:208:03:55:00. We ran CAP 921(for the first time) successfully to prepare for an eclipse after SCS 107 has activated at 2004:208:04:29:11. The eclipse started at 2004:208:07:55. We began CAP 927 Normal Sun Mode Recovery After Earth Eclipse at 2004:208:12:02:24. As of this writing, we are in NPM and completing the last step of CAP 927, a maneuver to the attitude desired for load restart. An ACIS power supply exceeded its yellow limit, but is not of concern. GOT/IST: EHS password change tomorrow at 1:00 am. Get the new password from your supervisor. DATA: SOT: MEETINGS -------- Data ---- On colossus (/dsops/GOT/input), - Jul 26 06:39 2004_207_1931_208_0522_Dump_EM_49220.gz. Evaluation of QL data --------------------- Target: SI SOT Eval. ------------------- ---------- ---------- HH 300: obs4499_1 ACIS-I OK SCULPTOR DWARF SPHEROIDAL: obs4705_0 ACIS-S OK Abell 496: obs4976_0 ACIS-S OK F1410-4555: obs4783_0 ACIS-S nothing obvious --------------------- NOTES/ISSUES/PROBLEMS --------------------- SNAPSHOT -------- UTC 2004:208:12:29:05 (Jul26) f_ACE 2.38e+04 F_CRM 5.26e+09 Kp 3.0 R km 40643D OBT 2004:208:12:28:40 CTUVCDU 9497541 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 207232120.20 ONLVCDU 9497528 OBC Errs 0 OBSID 4996 EPState SUN SIM TTpos -99616 HETG Angle 79.09 PCADMODE NPNT RA 61.926 Bus V 29.93 SIM FApos -535 LETG Angle 77.59 PCONTROL NPNT Dec -51.142 Bus I 32.03 AOFSTAR BRIT Roll 121.607 ACA Object SSSSSSSS Dither DISA HRC-I HV OFF ACA ImFunc NTTTTTTT Dith Yang 0.00 Yaw Rate 0.08 HRC-S HV ON ACA CCD Temp -15.6 Dith Zang 0.00 Pitch Rate -0.13 OBSMode NEXT ACA Int Time 0.705 Roll Rate 0.07 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.09 Batt 1 SOC 98.16% Avg HRMA Temp 70.58 FSS Beta -0.28 Batt 2 SOC 98.51% ACIS Stat7-0 67 Avg OBA Temp 52.33 SA Resolv 90.11 Batt 3 SOC 98.55% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 15.07 RadMon DISA HRMA power 80.20 SCS 128 INAC -Y SA Amps 15.66 EPHIN Geom LARG OBA power 8.10 SCS 129 INAC +Y SA Temp 108.44 E150 1202.0 SCS 130 INAC -Y SA Temp 108.70 E300 29.7 Roll Mom. -4.308 SCS 107 DISA E1300 0.5 Pitch Mom. 9.905 UpL Cmd Acc 24613 EPH A-Leak 1.0200 P4GM 141.3 Yaw Mom. 5.890 Cmd Rej A 73 EPH B-Leak 0.8800 P41GM 0.1 EPH temp 90.56 Gyro 1 Curr 1 9.60 Roll Bias -0.7012 M Unload MON Gyro 1 Curr 2 9.60 Pitch Bias -1.9407 CTX B PWR 36.69 TSC Move STOP Gyro 2 Curr 1 103.20 Yaw Bias -1.0176 CTX B Volts 3.54 FA Move STOP Gyro 2 Curr 2 98.40 OTG Move DISA