JADE-0802(JD0802) Correlation report Tsukuba VLBI Correlator [Geographical Survey Institute, Japan] Observed: 14 Feb., to 15 Feb., 2008 doy045/02:00 - 046/01:58 Correlated: 19 Feb., 2007 to 4 Mar., 2008 DB Exported: done Station Notes: -------------- TSUKUB32(T-Ts): OK Recorded on K5(VSSP32). AIRA (A-Ai): OK Recorded on K5. CHICHI10(C-Cc): Missed 5 scans (045/04:54-05:37) due to the power supply of K5 fell. Low pcal amplitude in S5 causing D codes in scan 045/02:00-02:46,03:24,06:27-06:58,07:12-07:29 and 23:04-23:17. Manual pcal in fringe fitting. Recorded on K5. VERAMZSW(M-Vm): The band of each channel has changed from 4MHz into 2MHz from 045/05:37 to 13:58. At the same time, pcal phase jumps due to the filter in the video converter changed and pcal amplitudes were 0% in X1,X6,X8 and S6 due to low/high of the IF-band has changed. X1,X6,X8 and S6 dropped from fringe fitting on TM(Ts-Vm), AM(Ai-Vm), CM(Cc-Vm), MS(Vm-Vs) baselines. 1 scan (045/11:52) out of antenna elevation limit. 1 scan (045/13:39) out of antenna elevation limit to track source due to masked by 10m antenna. No cable calibration from no delay calibrator at VERAMZSW. Recorded on K5. VERAISGK(S-Vs): The time of the sampler had shifted for -1 second. 2 scans (045/05:30 and 23:04) out of antenna elevation limit to track source due to under skyline. No cable calibration from no delay calibrator at VERAISGK. Recorded on K5. PF=2.47 Station Clocks -------------- Clocks: GSI Station fmout-gps Used rate Comments [usec] [usec] [sec/sec] Ts -0.147 -0.147 -0.089E-12 Reference Ai 0.301 -1.521 -0.755E-12 Cc 0.213 -1.638 -0.125E-12 Vm -3.800 -5.122 -0.838E-12 Vs -1.300 -1000002.715 -2.248E-12 Date: 2008/2/14 - 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 11 214 0 0 10 0 235 TA S 0 0 0 0 0 0 1 14 107 103 0 0 10 0 235 TC X 0 0 0 0 0 0 0 0 4 215 0 0 14 0 233 TC S 0 0 0 0 1 8 16 47 144 3 0 0 14 0 233 TM X 0 0 0 0 0 0 0 0 0 0 225 0 12 0 237 TM S 0 0 0 0 0 0 0 0 0 0 225 0 12 0 237 TS X 2 0 0 0 0 0 0 1 5 219 0 0 0 0 227 TS S 2 0 0 0 0 0 0 2 125 98 0 0 0 0 227 AC X 0 0 0 0 0 0 0 0 0 228 0 0 6 0 234 AC S 0 0 0 0 0 0 6 15 82 125 0 0 6 0 234 AM X 0 0 0 0 0 0 0 0 0 0 222 0 11 0 233 AM S 0 0 0 0 0 0 0 0 0 0 222 0 11 0 233 AS X 2 0 0 0 0 0 0 0 11 214 0 1 0 0 228 AS S 3 0 1 0 0 0 0 2 30 192 0 0 0 0 228 CM X 0 0 0 0 0 0 0 0 0 0 216 0 15 0 231 CM S 0 0 0 0 0 0 0 0 0 0 216 0 15 0 231 CS X 1 0 0 0 0 0 0 0 13 208 0 0 6 0 228 CS S 3 0 0 0 0 0 2 3 29 185 0 0 6 0 228 MS X 0 0 0 0 0 0 0 0 0 0 214 0 11 0 225 MS S 0 0 0 0 0 0 0 0 0 0 214 0 11 0 225 Column Totals, numbers then percentages 13 0 1 0 1 8 25 84 561 2004 1754 1 170 0 4622 % .3 .0 .0 .0 .0 .2 .5 --> --> 57.3 37.9 .0 3.7 .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: TA TC TM TS AC AM AS CM CS MS Total Obs: 235 233 237 227 234 233 228 231 228 225 Error : 10 15 237 2 6 233 5 231 9 225 % : 4.3 6.4100.0 .9 2.6100.0 2.2100.0 3.9100.0 (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 >> TA: 0 0 0 0 0 1 10 9 15 18 5 4 9 14 13 9 6 112 TC: 0 0 0 0 0 2 6 14 15 12 7 4 9 12 16 5 10 107 TM: 0 1 0 0 0 0 4 4 19 11 11 11 19 8 10 2 6 118 TS: 0 2 0 0 3 8 14 13 8 8 11 4 9 21 18 3 6 99 AC: 0 5 23 70 58 39 30 2 1 0 0 0 0 0 0 0 0 0 AM: 1 6 52 65 39 23 32 2 1 1 0 0 0 0 0 0 0 0 AS: 2 8 42 46 49 33 39 8 1 0 0 0 0 0 0 0 0 0 CM: 1 4 49 66 42 29 23 0 2 0 0 0 0 0 0 0 0 0 CS: 1 5 49 62 32 44 25 4 0 0 0 0 0 0 0 0 0 0 MS: 1 9 42 51 42 25 29 14 1 0 0 0 0 0 0 0 0 0 Total 6 40 257 360 265 204 212 70 63 50 34 23 46 55 57 19 28 436 Total number of obs: 2225 Average SNR: 47.6 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 0 0 0 5 22 15 22 10 6 11 3 22 40 8 3 58 TC: 0 0 0 0 0 23 16 11 13 23 8 27 31 8 4 14 4 37 TM: 0 1 0 4 23 25 26 27 35 17 7 5 19 3 5 0 1 27 TS: 0 2 0 9 13 15 30 16 19 11 17 15 41 4 6 14 7 8 AC: 0 1 28 96 53 25 11 9 5 0 0 0 0 0 0 0 0 0 AM: 1 31 108 69 3 2 6 1 0 1 0 0 0 0 0 0 0 0 AS: 2 7 47 96 50 22 0 0 0 3 0 1 0 0 0 0 0 0 CM: 0 58 126 24 1 5 0 0 1 0 0 1 0 0 0 0 0 0 CS: 1 18 69 113 11 9 1 0 0 0 0 0 0 0 0 0 0 0 MS: 3 71 134 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 Total 7 189 512 413 156 132 112 79 95 65 38 60 94 37 55 36 15 130 Total number of obs: 2225 Average SNR: 33.1 --------------------------------- Kentarou Nozawa G. S. I. /Advanced Engineering Services Co., Ltd. aes@gsi.go.jp