Tsukuba Correlator Report for K09234 OBSTIME 2009/08/22 DOY 234 CORRTIME 2009/08/24 EXPORT DONE CORRELATOR_NOTES ---------------- No Ts data in all channels of 1-17 scans (from 234/07:30:00 to 234/07:57). S1-S4U were dropped from fringe fitting in all scans due to the lack of Ts data. Scan at 234/08:20 produced a zero code on X band and S band. The source being observed was 1307+121. Scan at 234/08:25 produced a zero code on X band and S band. The source being observed was 0804+499. There was good integration time but low SNR for these two sources. QUALITY SUMMARY --------------- Qcode % of Total % of Correlated scans scans 5-9 50.0 % 50.0 % 0 5.6 % 5.6 % 4-1,D,G,N 44.4 % 44.4 % Removed 0 % STATION_NOTES ------------- TSUKUB32(T-Ts): Failed to record 17 scans( from 234/07:30:00 to 234/07:57 ) in X1-8U,S5U,S6U,X1L and X8L due to a K5 system trouble. Failed to record all scans in S1-S4U due to a K5system trouble. Recorded on K5(VSSP32). 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 0.456 0.456 0.036E-12 Reference Wz -19.969 -21.072 3.035E-12 Date: 2009/08/22 STATISTICS ---------- PROCESS SUMMARY BY BASELINE/FREQUENCY Base 0 1 2 3 4 5 6 7 8 9 D G N - Tot TV X 2 0 0 0 0 0 0 1 1 16 0 0 16 0 36 TV S 2 0 0 0 0 0 0 0 0 18 0 0 16 0 36 Column Totals, numbers then percentages 4 0 0 0 0 0 0 1 1 34 0 0 32 0 72 % 5.6 .0 .0 .0 .0 .0 .0 --> --> 50.0 .0 .0 44.4 .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 : 18 % : 50.0 (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 2 1 1 4 0 2 2 2 1 0 0 1 2 0 0 0 2 Total 0 2 1 1 4 0 2 2 2 1 0 0 1 2 0 0 0 2 Total number of obs: 20 Average SNR: 46.0 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: 1 2 6 1 1 1 3 2 2 0 0 0 0 0 0 0 0 1 Total 1 2 6 1 1 1 3 2 2 0 0 0 0 0 0 0 0 1 Total number of obs: 20 Average SNR: 26.2 MEAN RATIOS = Observed SNR / Predicted SNR ...by baseline, over all sources: bl X n S n TV 0.56 18 0.60 18 -------------------------------- MUKAI,Yasuko Geographical Survey Institute / AES Co.,Ltd. mukai@gsi.go.jp