Tsukuba Correlator Report for K09262 OBSTIME 2009/09/19 DOY 262 CORRTIME 2009/09/19 EXPORT DONE CORRELATOR_NOTES ---------------- All scans were fine. But the X-band SNRs were small, because the X-band noise of TSUKUB32 was large. QUALITY SUMMARY --------------- Qcode % of Total % of Correlated scans scans 5-9 100 % 100 % 0 0 % 0 % 4-1,D,G,N 0 % 0 % Removed 0 % STATION_NOTES ------------- TSUKUB32(T-Ts): The X-band noise was large, because the X-LNA cryogenic system was in bad condition. WETTZELL(V-Wz): OK. Transfer rate: 200 Mbit/s WETTZELL data were transferred to Tsukuba by data transfer protocol "Tsunami". CLOCKS ---------- Clocks: Tsukuba Station fmout-gps used rate Comments [usec] [usec] [sec/sec] Ts 0.515 0.515 0.121E-12 Reference Wz -19.950 -21.034 3.376E-12 Date: 2009/09/19 STATISTICS ---------- PROCESS SUMMARY BY BASELINE/FREQUENCY Base 0 1 2 3 4 5 6 7 8 9 D G N - Tot TV X 0 0 0 0 0 0 1 5 5 25 0 0 0 0 36 TV S 0 0 0 0 0 0 0 2 1 33 0 0 0 0 36 Column Totals, numbers then percentages 0 0 0 0 0 0 1 7 6 58 0 0 0 0 72 % .0 .0 .0 .0 .0 .0 1.4 --> --> 98.6 .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: TV Total Obs: 36 Error : 0 % : .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 >> TV: 0 0 0 4 1 3 4 4 3 2 1 1 0 0 4 2 1 6 Total 0 0 0 4 1 3 4 4 3 2 1 1 0 0 4 2 1 6 Total number of obs: 36 Average SNR: 57.0 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 >> TV: 0 1 5 3 4 5 2 0 1 6 3 2 1 0 0 2 0 1 Total 0 1 5 3 4 5 2 0 1 6 3 2 1 0 0 2 0 1 Total number of obs: 36 Average SNR: 37.0 MEAN RATIOS = Observed SNR / Predicted SNR ...by baseline, over all sources: bl X n S n TV 0.63 36 0.80 36 -------------------------------- Kentarou,Nozawa Geographical Survey Institute / AES Co.,Ltd. nozawa@gsi.go.jp