SOT shift report 2003-01-16 L1274 Written at 2003:016:14:56 UTC = 09:56 am Jan-16-2003 EST End 11:00:00 AM EST SOT Lead: Ed Kellogg PLAN ---- OBSID 04374 1 ORION NEBULA CLUSTER 2003:016:00:17, ACIS-I NONE RADIATION SUMMARY ----------------- Solar soft proton flux is Very low. (http://www.srl.caltech.edu/ACE/ASC/) Significant solar activity yesterday: Solar flare activity was low. A total of 1 C class flare was recorded during the day. (http://www.dxlc.com/solar/) CMEs reported for past two days: January 13-15: No obviously geoeffective CMEs noted. (http://www.dxlc.com/solar/) Radiation Measurement Observed Observed/Limit --------------------- -------- -------------- ACE 2hr fluence 1.32E+05 1/2717 (http://www.srl.caltech.edu/ACE/ASC/) GOES-8/P2 4-9 MeV protons `P4GM' 5.00E-02 1/1900 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) GOES-8/P5 40-80 MeV protons `P41GM' 1.00E-02 1/78 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) *ACIS* Orbital fluence (since perigee) 1.02E+06 1/980 (http://asc.harvard.edu/mta/alerts/current.dat) EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED RADMON limit, or value/limit ---------------------------------------- -------- ----------------------------- E1300 (electrons, 2.64-6.18 MeV): 0.0 10 P4GM (protons, 5-8.3 MeV): 0.0 300 P41GM (protons, 41-53 MeV): 0.0 8.47 (http://cxc.harvard.edu/cgi-gen/mta/Snap/snap.cgi?action=Latest) ACIS focal plane temperature -119.5 C, at 08:39 am EST (http://acis.mit.edu/asc/acisrt.html) REAL TIME OBSERVATIONS UTC OBSID ---------------------- --- ----- 3 fids, 5 stars 13:40 4374 Notes from 9 am meeting ------------------------ OPS: Passes 4 over the last 1 day(s) Dump status Current Data loss None Load is good -> 20:16:07 UTC CAPs 015:16:13 - 831, Halt momentum preload/unload and configure hardware/software; 015:16:14 - 830, Generic momentum preload/unload with set desired angular momentum. Next passes 2300, 0720 MP: We received an approved 3 day turnaround TOO request yesterday. We are still deciding whether to include it in this week's load (requires interrupting an Orion observatioin) or put it in next week's load. S/C From Dan Shropshire: "Results from yesterday's 16:00 GMT Momentum Unload: preliminary analysis indicates that once again, thruster A1 appears to have provided less thrust than expected during the unload.The predicted unload time was 1170 sec, whereas, 1550 sec was observed. In addition, thruster A1 fired for many more pulses than predicted, indicating lower thrust output. Also, as in the 2002:356 dump, it appears as though a change in thruster performance was seen approximately 7 minutes into the dump. Again, these results are preliminary and need to be verified. Temperatures, pressures, etc. all looked nominal. SOH of the thruster was never in question. The dump did complete close to the predicted end state meaning that the next unload will likely not occur until the end of next week (10ish days)...Our next step will be to more closely analyze the data from the dump, modify the fault tree analysis, and start plans for the next dump and future MUPS operations. " GOT/IST: - DATA:- SOT: GOES x-ray flux: One minor C class event today at ~ 06:00 UTC. MEETINGS -------- FDB today at 2 pm. Data ---- On colossus (/dsops/GOT/input), - Jan 15 18:35 2003_015_1527_015_2126_Dump_EM_72006.gz Evaluation of QL data --------------------- Target: SI SOT Eval. ------------------- ---------- ---------- (none today) --------------------- NOTES/ISSUES/PROBLEMS --------------------- Thruster A1 still appears to underperform. SNAPSHOT -------- UTC 2003:016:14:56:02 (Jan16) f_ACE 1.71e+01 F_CRM 3.16e+07 Kp 0.7 R km 124517A OBT 2003:016:13:39:38 CTUVCDU 6259455 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 159111578.18 ONLVCDU 6259440 OBC Errs 0 OBSID 4374 EPState SUN SIM TTpos 92903 HETG Angle 79.46 PCADMODE NPNT RA 83.795 Bus V 29.46 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -5.382 Bus I 31.27 AOFSTAR GUID Roll 310.698 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -7.91 Yaw Rate -0.10 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -7.90 Pitch Rate 0.23 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.10 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -1.79 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -47.63 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.05 SA Resolv 137.93 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 15.26 RadMon ENAB HRMA power 60.90 SCS 128 ACT -Y SA Amps 15.66 EPHIN Geom LARG OBA power 147.40 SCS 129 ACT +Y SA Temp 118.05 E150 29.5 SCS 130 ACT -Y SA Temp 119.51 E300 0.3 Roll Mom. -3.743 SCS 107 INAC E1300 0.0 Pitch Mom. 11.946 UpL Cmd Acc 19051 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. 0.823 Cmd Rej A 138 EPH B-Leak 0.4720 P41GM 0.0