Tsukuba Correlator Report for D10241 OBSTIME 2010/08/29 DOY 241 CORRTIME 2010/08/31 EXPORT DONE CORRELATOR_NOTES ---------------- Scan at 241/07:34 and 08:20 produced zero codes on S band. The source being observed were 1204+124. Pcal amplitudes and phases on X-band were not stable in Kb. QUALITY SUMMARY --------------- Qcode % of Total % of Correlated scans scans 5-9 89.4 % 89.4 % 0 5.3 % 5.3 % 4-1,D,G,N 5.3 % 5.3 % Removed 0 % STATION_NOTES ------------- KASHIM34(O-Kb): Low pcal amplitude on XR6U caused D codes in scan 241/07:30,07:51 and 08:28. Manual pcal in fringe fitting. WETTZELL(V-Wz): OK. Transfer rate: 256 Mbit/s WETTZELL data were real-time transferred to Tsukuba by data transfer software "VDIF/SUDP". CLOCKS ---------- Clocks: KASHIM34 Station fmout-gps used rate Comments [usec] [usec] [sec/sec] Kb 0.000 0.000 -4.330E-12 Reference Wz -20.796 -0.666 1.385E-12 Date: 2010/08/29 STATISTICS ---------- PROCESS SUMMARY BY BASELINE/FREQUENCY Base 0 1 2 3 4 5 6 7 8 9 D G N - Tot OV X 0 0 0 2 0 7 2 2 5 1 0 0 0 0 19 OV S 2 0 0 0 0 0 0 0 3 14 0 0 0 0 19 Column Totals, numbers then percentages 2 0 0 2 0 7 2 2 8 15 0 0 0 0 38 % 5.3 0.0 0.0 5.3 0.0 18.4 5.3 --> --> 65.8 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: OV Total Obs: 19 Error : 4 % : 21.1 (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 >> OV: 0 0 1 3 4 1 0 1 0 1 4 0 1 1 0 0 0 2 Total 0 0 1 3 4 1 0 1 0 1 4 0 1 1 0 0 0 2 Total number of obs: 19 Average SNR: 53.8 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 >> OV: 0 5 4 0 1 3 3 0 1 0 0 1 0 0 0 0 0 1 Total 0 5 4 0 1 3 3 0 1 0 0 1 0 0 0 0 0 1 Total number of obs: 19 Average SNR: 27.6 MEAN RATIOS = Observed SNR / Predicted SNR ...by baseline, over all sources: bl X n S n OV 1.14 19 0.85 17 -------------------------------- MUKAI,Yasuko Geospatial Information Authority of Japan / AES Co.,Ltd. mukai@gsi.go.jp