JADE-0712(JD0712) Correlation report Tsukuba VLBI Correlator [Geographical Survey Institute, Japan] Observed: 13 Dec., to 14 Dec., 2007 doy347/02:00 - 348/02:00 Correlated: 19 Dec., 2007 to 16 Jan., 2008 DB Exported: done Station Notes: -------------- TSUKUB32(T-Ts): OK Recorded on K5(VSSP32). AIRA (A-Ai): Missed 2 scans (348/01:50-01:58) due to FS was done in Kill by mistake. Low pcal amplitude in S5 causing D code in scan 347/05:02, 05:09, 05:34 and 06:14. Manual pcal in fringe fitting. Recorded on K5. CHICHI10(C-Cc): Low pcal amplitude in S1,2 causing D code in scan 347/10:26. Manual pcal in fringe fitting. Recorded on K5. VERAMZSW(M-Vm): Pcal phase jumps in X1-X8,S1-S8ch and pcal amplitude was 0% in X1,X6,X8 and S6ch from 348/01:14 to 01:58. due to the setting of the video converter changes. -7usec of clock offset discrepancy between group B(X5-X8) and another groups A, C, D(X1-X4,S1-S8). Baselines of Ts-Vm, Ai-Vm, Cc-Vm and Vs-Vm were fringe-fitted by setting relative clock offfset(this is an option of K5 correlation package which controls clock offset discrepancy handling). Low pcal amplitude in S5-8ch causing D codes in ~30 of all scans. No cable calibration from no delay calibrator at VERAMZSW. Slow slew to lock source at 348/16:30. Recorded on K5. VERAISGK(S-Vs): Missed 7 scans (348/01:17-01:58). Recorded on K5. No cable calibration from no delay calibrator at VERAISGK. PF=6.58 Station Clocks -------------- Clocks: GSI Station fmout-gps Used rate Comments [usec] [usec] [sec/sec] Ts 0.306 0.306 0.137E-12 Reference Ai 0.150 -1.027 0.058E-12 Cc 9.531 8.501 0.624E-12 Vm -0.200 3.891 -0.471E-13 Vs -11.800 -17.377 -2.066E-12 Date: 2007/12/13 - comment: correlation package apri_calc (NICT, Ver.2007-09-26) for calculating a prior delay&rate. cor (NICT, Ver.2007-11-13) for correlation. komb (NICT, Ver.2007-10-31) for bandwidth synthesis. Statistics ---------- PROCESS SUMMARY BY BASELINE/FREQUENCY Base 0 1 2 3 4 5 6 7 8 9 D G N - Tot TA X 0 0 0 0 0 0 0 0 1 218 0 0 0 5 224 TA S 0 0 0 0 0 0 3 9 115 92 0 0 0 5 224 TC X 0 0 0 0 0 0 0 0 1 223 0 0 1 0 225 TC S 0 0 0 0 0 0 3 16 96 109 0 0 1 0 225 TM X 0 0 0 0 0 0 0 2 9 152 0 0 77 0 240 TM S 0 0 0 0 0 0 0 5 60 98 0 0 77 0 240 TS X 0 0 0 0 0 0 0 0 9 195 0 1 10 0 215 TS S 0 0 0 0 0 0 0 1 99 105 0 0 10 0 215 AC X 0 0 0 0 0 0 0 0 0 200 0 0 16 5 221 AC S 0 0 0 0 0 0 1 9 77 113 0 0 16 5 221 AM X 0 0 0 0 0 0 0 0 1 82 0 0 128 5 216 AM S 0 0 0 0 0 0 0 1 5 77 0 0 128 5 216 AS X 0 0 0 0 0 0 0 0 6 195 0 0 8 5 214 AS S 0 0 0 0 0 0 0 1 46 154 0 0 8 5 214 CM X 0 0 0 0 0 0 0 0 2 72 0 0 142 0 216 CM S 0 0 0 0 0 0 0 0 2 72 0 0 142 0 216 CS X 0 0 0 0 0 0 0 0 5 178 0 0 25 0 208 CS S 0 0 0 0 0 0 0 0 45 138 0 0 25 0 208 SM X 0 0 0 0 0 0 0 1 5 65 0 0 135 0 206 SM S 0 0 0 0 0 0 0 0 1 70 0 0 135 0 206 Column Totals, numbers then percentages 0 0 0 0 0 0 7 45 585 2608 0 1 1084 40 4370 % .0 .0 .0 .0 .0 .0 .2 --> --> 74.1 .0 .0 24.8 .9100.0 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: TA TC TM TS AC AM AS CM CS SM Total Obs: 224 225 240 215 221 216 214 216 208 206 Error : 5 1 77 11 22 133 13 142 25 135 % : 2.2 .4 32.1 5.1 10.0 61.6 6.1 65.7 12.0 65.5 (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 >> TA: 0 0 8 9 34 25 34 12 9 4 6 8 8 12 12 6 6 26 TC: 0 5 7 27 34 29 24 14 8 7 11 9 14 7 8 5 5 10 TM: 0 35 31 27 17 7 7 6 8 1 5 1 3 1 1 0 3 10 TS: 0 0 11 8 41 29 17 9 9 5 5 8 15 11 6 6 4 21 AC: 0 43 49 66 28 13 1 0 0 0 0 0 0 0 0 0 0 0 AM: 0 32 22 13 9 2 4 0 1 0 0 0 0 0 0 0 0 0 AS: 0 17 53 66 31 17 15 2 0 0 0 0 0 0 0 0 0 0 CM: 0 30 22 10 7 3 2 0 0 0 0 0 0 0 0 0 0 0 CS: 0 40 63 43 22 10 5 0 0 0 0 0 0 0 0 0 0 0 SM: 0 24 22 11 5 3 2 3 0 1 0 0 0 0 0 0 0 0 Total 0 226 288 280 228 138 111 46 35 18 27 26 40 31 27 17 18 67 Total number of obs: 1623 Average SNR: 28.2 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 >> TA: 0 0 5 13 50 21 20 13 25 9 16 20 5 0 7 6 1 8 TC: 0 1 7 39 36 21 22 24 23 23 5 0 6 5 3 0 0 9 TM: 0 6 28 24 28 34 14 6 6 4 4 2 1 0 1 1 2 2 TS: 0 0 14 45 34 18 16 23 15 19 5 4 4 5 1 0 0 2 AC: 0 5 57 75 35 17 7 1 2 1 0 0 0 0 0 0 0 0 AM: 0 15 46 16 4 0 2 0 0 0 0 0 0 0 0 0 0 0 AS: 0 4 70 80 28 10 7 0 1 1 0 0 0 0 0 0 0 0 CM: 0 27 37 7 2 1 0 0 0 0 0 0 0 0 0 0 0 0 CS: 0 24 94 48 13 2 0 2 0 0 0 0 0 0 0 0 0 0 SM: 0 25 40 4 1 0 0 0 0 0 1 0 0 0 0 0 0 0 Total 0 107 398 351 231 124 88 69 72 57 31 26 16 10 12 7 3 21 Total number of obs: 1623 Average SNR: 24.9 --------------------------------- Kentarou Nozawa G. S. I. /Advanced Engineering Services Co., Ltd. aes@garnet.gsi.go.jp