SOT shift report 2004-04-20 L1734 Written at 2004:111:12:34 UTC = 08:34 AM Apr-20-2004 EDT End 11:00:00 AM EDT SOT Lead: Ed Kellogg PLAN ---- OBSID 04636, Cassiopeia A 2004:111:08:59 145.0 ACIS-S NONE - another much deeper exposure that allows us to study nucleosynthesis and core-collapse using Chandra's full spatial resolution. RADIATION SUMMARY ----------------- Solar soft proton flux is very low. (http://www.srl.caltech.edu/ACE/ASC/) Significant solar activity: The solar flare activity level was low. A total of 2 C class events was recorded yesterday.(http://www.dxlc.com/solar/) CMEs reported for past two days: April 17-19: No fully or partly Earth directed CME observed.(http://www.dxlc.com/solar/- Jan Alvestad) Radiation Measurement Observed Observed/Limit --------------------- -------- -------------- ACE 2hr fluence 9.44e+04 1/3815.6 (http://www.srl.caltech.edu/ACE/ASC/) GOES-10/P2 4-9 MeV protons `P4GM' 8.30e-02 1/1145 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) GOES-10/P5 40-80 MeV protons `P41GM' 9.66e-03 1/81 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) *ACIS* Orbital fluence (since perigee) 2.18E+05 1/4587 (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): 0.0 10 P4GM (5-8.3 MeV protons): 0.0 300 P41GM (41-53 MeV protons): 0.0 8.47 (http://cxc.harvard.edu/cgi-gen/mta/Snap/snap.cgi?action=Latest) ACIS focal plane temperature -119.9 C, at dddZhh:mm:ss 111Z11:58:50 (http://asc.harvard.edu/acis/RT/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 -> 114:22:10 UTC CAPs - Next passes 111/2020-2220 DSS 66 112/0345-0445 DSS 54 112/1115-1215 DSS 24 MP: The APR2604A load products will be released this morning, with a review later today. S/C: We'll be working on ASVT to test the CPE and He patches this week. GOT/IST: We completed the Phase I workstation transition to Linux yesterday. Greg Wright from MSFC is here through 22 Apr., working ground system issues. DATA: We're having difficulty processing the large number of events from the deep Cas A observations. One of these has 53e6 counts. The greatest number of counts previously processed was 15e6. We suspect that there is a file size limit. The software group is working intensively toward a solution. SOT: We upgraded to Xwin-32 6.0 with the new license on yobbo this morning. MEETINGS -------- Data ---- On colossus (/dsops/GOT/input), - Apr 20 03:52 2004_110_2116_111_0226_Dump_EM_94876.gz. Evaluation of QL data --------------------- Target: SI SOT Eval. ------------------- ---------- ---------- GRB031203: obs5314_0 ACIS-S OK Cassiopeia A: obs5319_0(partial) ACIS OK --------------------- NOTES/ISSUES/PROBLEMS --------------------- SNAPSHOT -------- UTC 2004:111:12:24:01 (Apr20) f_ACE 1.94e+01 F_CRM 3.05e+06 Kp 1.3 R km 109200A OBT 2004:111:11:58:21 CTUVCDU 10339327 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 198849501.44 ONLVCDU 10339312 OBC Errs 0 OBSID 4636 EPState SUN SIM TTpos 75623 HETG Angle 79.46 PCADMODE NPNT RA 350.897 Bus V 29.93 SIM FApos -467 LETG Angle 77.59 PCONTROL NPNT Dec 58.817 Bus I 30.01 AOFSTAR GUID Roll 49.623 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -7.82 Yaw Rate -0.18 HRC-S HV ON ACA CCD Temp -15.6 Dith Zang -5.87 Pitch Rate 0.16 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.16 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -2.92 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 34.81 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 53.05 SA Resolv 55.05 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 14.68 RadMon ENAB HRMA power 136.70 SCS 128 ACT -Y SA Amps 15.07 EPHIN Geom LARG OBA power 124.50 SCS 129 ACT +Y SA Temp 111.74 E150 0.6 SCS 130 ACT -Y SA Temp 112.66 E300 0.1 Roll Mom. -2.358 SCS 107 INAC E1300 0.0 Pitch Mom. 2.705 UpL Cmd Acc 3860 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. 3.699 Cmd Rej A 142 EPH B-Leak 0.9080 P41GM 0.0 EPH temp 89.48 Gyro 1 Curr 1 9.60 Roll Bias -0.6355 M Unload MON Gyro 1 Curr 2 9.60 Pitch Bias -1.9132 CTX B PWR 36.69 TSC Move STOP Gyro 2 Curr 1 103.20 Yaw Bias -0.9710 CTX B Volts 3.54 FA Move STOP Gyro 2 Curr 2 100.80 OTG Move DISA