Tsukuba Correlator Report for F10255 OBSTIME 2010/09/12 DOY 255 CORRTIME 2010/09/13 EXPORT DONE CORRELATOR_NOTES ---------------- Scan at 255/07:47 caused a zero code on S band. The source being observed was 3C418. Pcal amplitudes and phases on X-band were not stable in KASHIM34. QUALITY SUMMARY --------------- Qcode % of Total % of Correlated scans scans 5-9 95.2 % 95.2 % 0 2.4 % 2.4 % 4-1,D,G,N 2.4 % 2.4 % Removed 0 % STATION_NOTES ------------- KASHIM34(O-Kb): Pcal amplitudes and phases on X-band were not stable. Manual pcal in fringe fitting. Transfer rate: 300 Mbit/s WESTFORD(E-Wf): OK. Transfer rate: 100 Mbit/s CLOCKS ---------- Clocks: KASHIM34 Station fmout-gps used rate Comments [usec] [usec] [sec/sec] Kb -22.260 -22.260 11.081E-12 Reference Wf 11.043 10.794 15.663E-12 Date: 2010/09/12 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 1 1 2 7 6 4 0 0 0 0 21 OE S 1 0 0 0 0 0 0 0 1 19 0 0 0 0 21 Column Totals, numbers then percentages 1 0 0 0 1 1 2 7 7 23 0 0 0 0 42 % 2.4 0.0 0.0 0.0 2.4 2.4 4.8 --> --> 88.1 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: 21 Error : 2 % : 9.5 (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 1 0 0 5 3 1 3 1 2 1 1 0 0 0 0 0 3 Total 0 1 0 0 5 3 1 3 1 2 1 1 0 0 0 0 0 3 Total number of obs: 21 Average SNR: 42.8 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 0 3 3 5 3 1 1 0 0 0 0 0 2 1 0 1 0 Total 1 0 3 3 5 3 1 1 0 0 0 0 0 2 1 0 1 0 Total number of obs: 21 Average SNR: 30.6 MEAN RATIOS = Observed SNR / Predicted SNR ...by baseline, over all sources: bl X n S n OE 1.41 21 0.83 20 -------------------------------- Kentarou Nozawa Geospatial Information Authority of Japan / AES Co.,Ltd. nozawa@gsi.go.jp