SOT shift report 2003-04-25 L1373 Written at 2003:115:14:41 UTC = 10:41 am Apr-25-2003 EDT End 11:00:00 AM EDT SOT Lead: Ed Kellogg PLAN ---- Continue OBSID 04382, 3C58 200:113:20:18, ACIS-S NONE - 3C58 - THE YOUNGEST KNOWN PULSAR NEBULA IN THE GALAXY. RADIATION SUMMARY ----------------- Solar soft proton flux is Low. We are seeing a slight increase in the ACE flux from increased solar activity in the past few days... (http://www.srl.caltech.edu/ACE/ASC/) Significant solar activity: Solar flare activity was moderate. A total of 9 C and 1 M class events was recorded during the day. (http://www.dxlc.com/solar/) CMEs reported for past two days: April 22 and 24: No obviously geoeffective CMEs observed.. April 23: A partial halo CME was observed in LASCO images after an M5.1 flare. There is a possibility of a minor impact from the southern CME flank today.(http://www.dxlc.com/solar/, Jan Alvestad) Radiation Measurement Observed Observed/Limit --------------------- -------- -------------- ACE 2hr fluence 2.68E+05 1/1341 (http://www.srl.caltech.edu/ACE/ASC/) GOES-10/P2 4-9 MeV protons `P4GM' 1.11E-01 1/856 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) GOES-10/P5 40-80 MeV protons `P41GM' 4.20E-03 1/186 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) *ACIS* Orbital fluence (since perigee) 6.96E+06 1/144 (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 (electrons, 2.64-6.18 MeV): 0.1 1/100 P4GM (protons, 5-8.3 MeV): 0.4 1/750 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 -119.9 C, at 05:43 am EDT (http://acis.mit.edu/asc/acisrt.html) REAL TIME OBSERVATIONS UTC OBSID ---------------------- --- ----- - Notes from 9 am meeting ------------------------ OPS: Passes 3 over the last 1 day(s) Dump status Current Data loss None Load is good -> 119:10:50 UTC CAPs - Next passes 115/1940-0145 DSS 46 Dark Current Calibration 116/0325-0425 DSS 34 116/1000-1100 DSS 24 116/2010-2210 DSS 66 117/0315-0515 DSS 16 117/1230-1330 DSS 24 117/2045-2145 DSS 34 118/0335-0535 DSS 66 118/1220-1420 DSS 16 MP: The APR2803B load was approved yesterday.The MAY0503 load will be out Monday. S/C: IRU1 noise spikes went up to 172 mA early today. The FDB approved the A -> B IRU swap procedure yesterday. We are working on some further improvements. The meeting on calibrating the B IRU will be held Monday. The thermal working group approved some new ACIS limits; we'll modify the database accordingly. A new thruster limit of <= 160 F is set for start of momentum unload. GRETA 2.0 was approved. See http://occwww.cfa.harvard.edu/occweb/FOT/ground_systems/greta/Releases/2.0/greta-2.0-1.html. GOT/IST: - DATA:- SOT: IRU1 baseline trending upward from ~140 to 150 mA and noise occasionally up to ~160 yesterday. John Chappell reported that he lost connectivity last night on psicorp. Joy will investigate. Thanks again to Peter Fellini for help with setting up transfer of files to Lucky. MEETINGS -------- Monday: IRU B side calibration. Data ---- On colossus (/dsops/GOT/input), - Apr 25 08:57 2003_114_2245_115_0934_Dump_EM_11336.gz Evaluation of QL data --------------------- Target: SI SOT Eval. ------------------- ---------- ---------- - --------------------- NOTES/ISSUES/PROBLEMS --------------------- SNAPSHOT -------- UTC 2003:115:12:38:01 (Apr25) f_ACE 3.25e+01 F_CRM 5.18e+08 Kp 2.7 R km 104338D OBT 2003:115:09:43:45 CTUVCDU 6029695 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 167651025.71 ONLVCDU 6029680 OBC Errs 0 OBSID 4382 EPState SUN SIM TTpos 75623 HETG Angle 79.46 PCADMODE NPNT RA 31.380 Bus V 30.40 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec 64.814 Bus I 24.69 AOFSTAR GUID Roll 0.025 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 7.47 Yaw Rate 0.19 HRC-S HV ON ACA CCD Temp -10.8 Dith Zang -6.39 Pitch Rate 0.06 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.11 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 1.09 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 37.98 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.37 SA Resolv 52.38 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 11.79 RadMon ENAB HRMA power 31.50 SCS 128 ACT -Y SA Amps 12.37 EPHIN Geom LARG OBA power 149.90 SCS 129 INAC +Y SA Temp 111.74 E150 887.8 SCS 130 ACT -Y SA Temp 112.04 E300 8.6 Roll Mom. -7.306 SCS 107 INAC E1300 0.1 Pitch Mom. 6.439 UpL Cmd Acc 20889 EPH A-Leak 1.0200 P4GM 0.4 Yaw Mom. 4.872 Cmd Rej A 174 EPH B-Leak 0.4200 P41GM 0.0