Tsukuba Correlator Report for F10248 OBSTIME 2010/09/05 DOY 248 CORRTIME 2010/09/07 EXPORT DONE CORRELATOR_NOTES ---------------- Scan at 248/07:30 caused a zero code on S band. The source being observed was 2209+236. Scan at 248/07:46 caused a zero code on S band. The source being observed was 3C418. Pcal amplitudes and phases on X-band were not stable in Kb. QUALITY SUMMARY --------------- Qcode % of Total % of Correlated scans scans 5-9 85.0 % 85.0 % 0 5.0 % 5.0 % 4-1,D,G,N 10.0 % 10.0 % Removed 0 % STATION_NOTES ------------- KASHIM34(O-Kb): Pcal amplitudes and phases on X-band were not stable. Manual pcal in fringe fitting. WESTFORD(E-Wf): OK. CLOCKS ---------- Clocks: KASHIM34 Station fmout-gps used rate Comments [usec] [usec] [sec/sec] Kb -21.185 -21.185 11.593E-12 Reference Wf 10.886 10.659 16.693E-12 Date: 2010/09/05 STATISTICS ---------- PROCESS SUMMARY BY BASELINE/FREQUENCY Base 0 1 2 3 4 5 6 7 8 9 D G N - Tot OE X 0 0 0 0 4 3 5 5 2 1 0 0 0 0 20 OE S 2 0 0 0 0 0 0 0 2 16 0 0 0 0 20 Column Totals, numbers then percentages 2 0 0 0 4 3 5 5 4 17 0 0 0 0 40 % 5.0 0.0 0.0 0.0 10.0 7.5 12.5 --> --> 65.0 0.0 0.0 0.0 0.0100.0 QC = 0 : Fringes not detected. = 1-9 : Fringes detected. The higher number, the better quality. = D : No data in one or more frequency channels. = G : Fringe amp in a freq ch is <.5 times coherent amp only if snr>20. = N : No valid correlator data. = - : Not scanned Base Line: OE Total Obs: 20 Error : 6 % : 30.0 (ERROR: Q-code of either band is less than 4 or letter code, or not scanned) SNR histogram Distribution of X-band SNRs, for each baseline SNR: 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 >> OE: 0 0 3 4 1 3 1 2 1 1 1 0 1 1 1 0 0 0 Total 0 0 3 4 1 3 1 2 1 1 1 0 1 1 1 0 0 0 Total number of obs: 20 Average SNR: 33.2 Distribution of S-band SNRs, for each baseline SNR: 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 >> OE: 1 1 4 4 3 2 2 0 0 0 0 0 1 0 0 1 1 0 Total 1 1 4 4 3 2 2 0 0 0 0 0 1 0 0 1 1 0 Total number of obs: 20 Average SNR: 27.6 MEAN RATIOS = Observed SNR / Predicted SNR ...by baseline, over all sources: bl X n S n OE 1.04 20 0.90 18 -------------------------------- MUKAI,Yasuko Geospatial Information Authority of Japan / AES Co.,Ltd. mukai@gsi.go.jp