+HEADER CORREL Tsukuba DATABASE 11SEP11XK SESSNAME k11254 OBSTIME 2011/09/11 UTSTART 0730 DURATION 1 DOY 254 CORRTIME 2011/09/11 CORRPASS 1 EXPORT DONE +SUMMARY Qcode % of Total % of Correlated scans scans 5-9 98.9 % 98.9 % 0 1.1 % 1.1 % 4-1,D,G,N 0.0 % 0.0 % Removed 0.0 % +CORRELATOR_NOTES Scan at 254-0741 produced a zero code on S band. The source being observed was 3C274. There was low SNR but good integration time for this scan. +STATION_NOTES TSUKUB32(T-Ts): OK. WETTZELL(V-Vs): OK. Transfer rate: 256 Mbit/s WETTZELL data were real-time transferred to Tsukuba by data transfer software "VDIF/SUDP". +MANUAL PCAL +CHANNELS XR1U = band|polarization|channel#|sideband XR1U/L BBC01 8212.99 XR2U BBC02 8252.99 XR3U BBC03 8352.99 XR4U BBC04 8512.99 XR5U BBC05 8732.99 XR6U BBC06 8852.99 XR7U BBC07 8912.99 XR8U/L BBC08 8932.99 SR1U BBC09 2232.99 SR2U BBC10 2240.99 SR3U BBC11 2256.99 SR4U BBC12 2312.99 SR5U BBC13 2344.99 SR6U BBC14 2352.99 +DROP_CHANNELS Ts Wz +CLOCKS Clocks: TSUKUB32 Station fmout-gps used rate Comments [usec] [usec] [sec/sec] Ts 0.228 0.228 1.080E-12 Reference Wz -23.294 -24.432 7.439E-12 Date: 2011/09/11 +QCODES 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 0 0 1 43 0 0 0 0 44 TV S 1 0 0 0 0 0 0 0 1 42 0 0 0 0 44 Column Totals, numbers then percentages 1 0 0 0 0 0 0 0 2 85 0 0 0 0 88 % 1.1 0.0 0.0 0.0 0.0 0.0 0.0 --> --> 98.9 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: TV Total Obs: 44 Error : 1 % : 2.3 (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 3 4 2 3 3 6 6 0 0 6 2 1 0 2 0 6 Total 0 0 3 4 2 3 3 6 6 0 0 6 2 1 0 2 0 6 Total number of obs: 44 Average SNR: 52.4 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 1 3 5 14 5 4 2 1 2 1 1 0 0 1 1 2 0 Total 1 1 3 5 14 5 4 2 1 2 1 1 0 0 1 1 2 0 Total number of obs: 44 Average SNR: 31.0 +SNR_RATIOS MEAN RATIOS = Observed SNR / Predicted SNR bl X n S n TV 0.89 44 0.90 43 +END -------------------------------- Nishikawa,TAKASHI Geospatial Information Authority of Japan / AES Co.,Ltd. nishikawa@gsi.go.jp