SOT shift report 2005-08-26 L2227 File created at 2005:238:12:52 UTC = 08:52 AM Aug-26-2005 EDT End 11:00:00 AM EDT SOT Lead: Ed Kellogg PLAN ---- No load pending investigation of why the latest SCS 107 shutdown occurred. It appears that the relative timing of radmon enable and SCS 107 enable may be causative. There is likely a workaround to prevent recurrence of this situation. 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 1 M class events was recorded yesterday. (http://www.dxlc.com/solar/).Two short duration C class events today. CMEs reported for past two days: August 24: No obvious partly or fully Earth directed CMEs were observed. August 25: A very fast and wide full halo CME was observed after the major M6 event in region 10803. This CME was not as dense as we often observe and it was difficult to track the expansion front over the western limbs. (http://www.dxlc.com/solar/- Jan Alvestad) Radiation Measurement Observed Observed/Limit --------------------- -------- -------------- ACE 2 hr fluence 4.2E+06 1/85.9 (http://www.srl.caltech.edu/ACE/ASC/) GOES-10/P2 4-9 MeV protons `P4GM' 1.3E-01 1/736.4 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) GOES-10/P5 40-80 MeV protons `P41GM' 9.7E-03 1/80.7 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) *ACIS* Orbital fluence (since perigee) (in perigee) (http://asc.harvard.edu/mta/alerts/current.dat) EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED ---------------------------------------- -------- E1300 (2.64-6.18 MeV electrons): 0.0; RADMON limit = 10 P4GM (5-8.3 MeV protons): 3.4; RADMON limit = 300 P41GM (41-53 MeV protons): 0.0; RADMON limit = 8.47 (http://cxc.harvard.edu/cgi-gen/mta/Snap/snap.cgi?action=Latest) ACIS focal plane temperature -119.7 C, at dddZhh:mm:ss 238Z04:49:31 (http://asc.harvard.edu/acis/RT/acisrt.html) REAL TIME OBSERVATIONS UTC OBSID ---------------------- --- ----- - Notes from 9 am meeting ------------------------ OPS: Passes 4 Supports Completed (0 34 Meter, 4 26 Meter) from 237/1300 - 238/1300 Dump status Current Data loss None Last load segment ends 2005:240:07:30 CAPs, last 24h: # 2005:237:16:41:52.575, 750 rev S, Dump OBC-A Memory 65000 - 656C7 / 31D99 - 31E2A # 2005:237:16:54:13.329, 893 A, DISA SCS 29 # 2005:237:21:45:31.019, 976, Manual retraction of LETG using B-side Hardware Commands # 2005:237:21:45:40.564, 711, Reset last-move-successful flag for OTG processing to True Next passes(yyyy:ddd:BOT-EOT)2005:238:1500-1600 2005:238:1500-1600 2005:238:2250-0050 2005:239:1140-1240 2005:239:1925-2125 2005:240:0245-0445 2005:240:1100-1200 2005:240:1930-2100 2005:241:0345-0445 2005:241:1150-1740 MP: We approved and uplinked the AUG2505B maneuver only load. Products were released last night for the AUG2605A science load, but not used. We are working on next week's loads. We are good at this attitude for 2.5 days. S/C: The grating was retracted successfully last night. We're looking into why the radmon tripped. We believe it may be a timing issue. We will have a briefing this morning at 11:00 to discuss this issue. GOT/IST: The T1 line soak test will be finished tonight. We will make plans to ship the old restricted line equipment back to GSFC. DATA: none SOT: MEETINGS -------- Data ---- On colossus (/dsops/GOT/input), - Aug 26 05:15 2005_237_2158_238_0421_Dump_EM_76638.gz. Evaluation of QL data --------------------- Target: SI SOT Eval. ------------------- ---------- ---------- --------------------- NOTES/ISSUES/PROBLEMS --------------------- SNAPSHOT -------- UTC 2005:238:12:41:01 (Aug26) f_ACE 5.93e+02 F_CRM 0.00e+00 Kp 1.3 R km 107057D OBT 2005:238:04:49:10 CTUVCDU 8691839 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 241418950.60 ONLVCDU 8691824 OBC Errs 0 OBSID 59489 EPState SUN SIM TTpos -99615 HETG Angle 79.09 PCADMODE NPNT RA 357.998 Bus V 29.77 SIM FApos -990 LETG Angle 77.59 PCONTROL NPNT Dec -30.501 Bus I 29.00 AOFSTAR GUID Roll 52.578 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -7.93 Yaw Rate 0.05 HRC-S HV OFF ACA CCD Temp -15.6 Dith Zang -1.79 Pitch Rate 0.11 SHLD HV 0.0 ACA Int Time 1.698 Roll Rate -0.03 EVT RT 0 AOACSTAT OK FSS SunBeta NSUN SHLD RT 0 FSS Alfa -17.83 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.77 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 52.09 SA Resolv 150.75 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 14.49 RadMon DISA HRMA power 103.30 SCS 128 INAC -Y SA Amps 14.30 EPHIN Geom LARG OBA power 108.40 SCS 129 INAC +Y SA Temp 111.43 E150 185.9 SCS 130 INAC -Y SA Temp 112.97 E300 3.8 Roll Mom. -1.297 SCS 107 DISA E1300 0.0 Pitch Mom. -4.650 UpL Cmd Acc 49593 EPH A-Leak 1.0200 P4GM 3.4 Yaw Mom. -0.832 Cmd Rej A 98 EPH B-Leak 0.8120 P41GM 0.0 EPH temp 83.17 Gyro 2 Curr 1 105.60 Roll Bias -0.9286 M Unload MON Gyro 2 Curr 2 98.40 Pitch Bias -2.0561 CTX B PWR 36.54 TSC Move STOP Prop. line 03 82.65 Yaw Bias -1.1833 CTX B Volts 3.54 FA Move STOP Prop. line 04 61.19 OTG Move ENAB