+HEADER CORREL Tsukuba DATABASE 12NOV04XK SESSNAME k12309 OBSTIME 2012/11/04 UTSTART 0730 DURATION 1 DOY 309 CORRTIME 2012/11/04 CORRPASS 1 EXPORT DONE +SUMMARY Qcode % of Total % of Correlated scans scans 5-9 98.8 % 98.8 % 0 1.2 % 1.2 % 4-1,D,G,N 0.0 % 0.0 % Removed 0.0 % +CORRELATOR_NOTES Scan at 309-0735 produced a zero code on S band. The source being observed was 0800+618. There was low SNR but good integration time for this scan. +STATION_NOTES TSUKUB32(T-Ts): Low pcal amplitude in SR1U, SR2U and SR3U at 309-0735 UT and SR1U at 309-0735 UT caused D codes on S-band. Manual phasecal applied at WETTZELL. WETTZELL(V-Wz): OK. Transfer rate: 256 Mbit/s WETTZELL data were real-time transferred to Tsukuba by data transfer software "VDIF/SUDP". +MANUAL PCAL Ts +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 0.563 1.964 -0.614E-12 Reference Wz -26.769 -26.517 2.268E-12 Date: 2012/11/04 +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 0 42 0 0 0 0 42 TV S 1 0 0 0 0 0 0 0 0 41 0 0 0 0 42 Column Totals, numbers then percentages 1 0 0 0 0 0 0 0 0 83 0 0 0 0 84 % 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 98.8 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: TV Total Obs: 42 Error : 1 % : 2.4 (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 1 4 4 2 5 5 1 2 3 5 2 0 0 0 0 8 Total 0 0 1 4 4 2 5 5 1 2 3 5 2 0 0 0 0 8 Total number of obs: 42 Average SNR: 57.7 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 0 3 9 12 2 7 1 2 1 0 0 3 0 0 0 0 1 Total 1 0 3 9 12 2 7 1 2 1 0 0 3 0 0 0 0 1 Total number of obs: 42 Average SNR: 29.3 +SNR_RATIOS MEAN RATIOS = Observed SNR / Predicted SNR bl X n S n TV 1.11 42 1.14 41 +END -------------------------------- Takashi, NISHIKAWA Geospatial Information Authority of Japan / AES Co.,Ltd. nishikawa@gsi.go.jp