JADE-0708(JD0708) Correlation report Tsukuba VLBI Correlator [Geographical Survey Institute, Japan] Observed: 23 Aug. to 24 Aug., 2007 doy235/02:00 - 236/01:57 Correlated: 29 Aug., 2007 to 28 Sep., 2007 DB Exported: done Station Notes: -------------- TSUKUB32(T-Ts): OK Recorded on K5(VSSP32). AIRA (A-Ai): OK Recorded on K5. CHICHI10(C-Cc): OK Recorded on K5. SINTOTU3(J-S3): Missed 66 scans (from 235/16:29 to 235/23:44) in S5-S8 due to the OS of recorder was hung up. Occasionally low pcal amplitude in S5 causing D codes in scan from 235/03:01 to 235/09:40. Manual pcal in fringe fitting. Recorded on K5. VERAMZSW(M-Vm): Antenna tracking failure from 235/04:19 to 235/04:25 and from 235/10:12 to 235/10:43. Slow slew to lock source at 236/00:10. No cable calibration from no delay calibrator at VERAMZSW. Recorded on K5. VERAISGK(S-Vs): Occasionally low pcal amplitude in S5 causing D codes in scan from 235/03:47 to 235/07:59. Manual pcal in fringe fitting. Missed 13 scans (from 235/02:00 to 235/03:35) due to the observation start was late. No cable calibration from no delay calibrator at VERAISGK. Recorded on K5. PF=4.76 Station Clocks -------------- Clocks: GSI Station fmout-gps Used rate Comments [usec] [usec] [sec/sec] Ts 0.229 0.229 0.080E-12 Reference Ai 0.339 -1.662 1.328E-12 Cc 3.699 1.645 0.856E-12 S3 0.398 -1.714 0.162E-12 Vm -1.500 -3.094 -0.611E-12 Vs 0.000 -1.957 -2.248E-12 Date: 2007/8/23 - comment: correlation package apri_calc (NICT, Ver.2007-07-23) for calculating a prior delay&rate. cor (NICT, Ver.2007-07-23) for correlation. komb (NICT, Ver.2006-10-15) 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 1 4 25 208 0 1 0 0 239 TA S 0 0 0 0 0 0 0 25 136 78 0 0 0 0 239 TC X 0 0 0 0 0 0 0 3 39 189 0 0 0 0 231 TC S 0 0 0 0 0 0 2 1 8 220 0 0 0 0 231 TJ X 0 0 0 0 0 0 0 0 0 228 0 0 3 0 231 TJ S 2 0 0 0 0 0 0 0 16 210 0 0 3 0 231 TM X 0 0 0 0 0 0 2 7 50 172 0 0 7 0 238 TM S 0 0 0 0 1 9 48 105 57 11 0 0 7 0 238 TS X 0 0 0 0 0 0 1 3 23 168 0 0 6 8 209 TS S 0 0 0 0 0 3 22 23 144 3 0 0 6 8 209 AC X 0 0 0 0 0 0 0 0 0 223 0 0 6 0 229 AC S 0 0 0 0 0 0 0 1 50 172 0 0 6 0 229 AM X 0 0 0 0 0 0 0 0 5 204 0 0 11 0 220 AM S 0 0 0 0 0 0 4 9 40 156 0 0 11 0 220 AS X 0 0 0 0 0 0 0 1 13 184 0 0 11 8 217 AS S 0 0 1 0 0 0 3 6 61 127 0 0 11 8 217 CM X 0 0 0 0 0 0 0 2 1 211 0 0 8 0 222 CM S 1 0 2 0 0 0 0 4 29 178 0 0 8 0 222 CS X 0 0 0 0 0 0 0 0 5 190 0 1 8 8 212 CS S 0 0 0 0 0 0 0 4 64 128 0 0 8 8 212 MS X 0 0 0 0 0 0 0 0 54 126 0 5 11 8 204 MS S 3 0 0 0 0 0 0 9 17 156 0 0 11 8 204 Column Totals, numbers then percentages 6 0 3 0 1 12 83 207 837 3542 0 7 142 64 4904 % .1 .0 .1 .0 .0 .2 1.7 --> --> 93.5 .0 .1 2.9 1.3100.0 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 TJ TM TS AC AM AS CM CS MS Total Obs: 239 231 231 238 209 229 220 217 222 212 204 Error : 1 0 5 8 14 6 11 20 11 17 27 % : .4 .0 2.2 3.4 6.7 2.6 5.0 9.2 5.0 8.0 13.2 (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 3 4 4 13 28 12 10 14 20 22 23 5 9 5 67 TC: 0 0 0 1 5 2 12 15 28 9 9 26 28 13 4 7 10 62 TJ: 0 5 54 65 36 36 20 11 1 0 0 0 0 0 0 0 0 0 TM: 0 0 1 3 3 6 1 2 2 4 15 7 11 1 7 11 18 139 TS: 0 0 0 0 6 2 2 13 13 17 5 6 18 18 15 6 10 64 AC: 0 18 50 75 64 14 2 0 0 0 0 0 0 0 0 0 0 0 AM: 0 3 42 39 55 30 32 8 0 0 0 0 0 0 0 0 0 0 AS: 0 14 48 53 34 38 10 1 0 0 0 0 0 0 0 0 0 0 CM: 0 5 38 43 56 31 28 12 1 0 0 0 0 0 0 0 0 0 CS: 0 18 37 69 38 24 10 0 0 0 0 0 0 0 0 0 0 0 MS: 0 5 25 22 49 37 18 18 7 4 0 0 0 0 0 0 0 0 Total 0 68 295 373 350 224 148 108 64 44 43 59 79 55 31 33 43 332 Total number of obs: 2349 Average SNR: 41.5 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 2 3 4 2 14 24 14 17 32 35 23 21 8 4 36 TC: 0 0 1 0 3 7 5 23 16 15 29 29 36 17 6 4 3 37 TJ: 0 26 82 79 20 15 2 0 4 0 0 0 0 0 0 0 0 0 TM: 0 1 5 7 8 15 19 17 37 30 30 10 16 12 9 6 8 1 TS: 0 0 3 3 5 10 29 20 18 21 31 17 10 2 6 9 10 1 AC: 0 0 35 66 64 32 12 4 1 0 7 2 0 0 0 0 0 0 AM: 0 19 97 66 15 2 9 1 0 0 0 0 0 0 0 0 0 0 AS: 0 6 50 86 31 14 4 5 2 0 0 0 0 0 0 0 0 0 CM: 0 26 96 66 10 10 6 0 0 0 0 0 0 0 0 0 0 0 CS: 0 12 74 75 20 5 5 5 0 0 0 0 0 0 0 0 0 0 MS: 1 39 107 21 10 4 1 1 0 0 0 0 0 1 0 0 0 0 Total 1 129 550 471 189 118 94 90 102 80 114 90 97 55 42 27 25 75 Total number of obs: 2349 Average SNR: 31.4 --------------------------------- Kentarou Nozawa G. S. I. /Advanced Engineering Services Co., Ltd. aes@garnet.gsi.go.jp