JADE-1206 (Japanese Dynamic Earth observation by VLBI) 2012 June 14-15 Notes prepared by YM Geospatial Information Authority of Japan Session JD1206 Start 2012-166 02:00:00 June 14 End 2012-167 01:55:26 June 15 Stations Duration: 24 hours Correlator: TSUKUBA(GSI) PURPOSE ======= The purpose of the JADE sessions is to monitor the plate motion and the local crustal movement around Japan. In 2012 fiscal year, JADE session will be carried out once a month. NETWORK ======= The standard configuration of the JADE projests consists of some stations. Code : Station SCHEDULE ======== This schedule was made by YM using sked. Schedule setup parameters: Early start 0 sec Corr. tape sync time 0 sec Minimum scan length 20 sec Maximum scan length 480 sec Minimum SNR by baseline for multi-baseline scans X-band (margin 3) S-band (margin 3) Ts Ai Cc S3 Vm Vs K1 Ts Ai Cc S3 Vm Vs K1 Ai 20 Ai 16 Cc 19 17 Cc 15 14 S3 17 0 0 S3 15 0 0 Vm 20 18 17 0 Vm 16 15 14 0 Vs 20 18 17 0 18 Vs 16 15 14 0 15 K1 20 18 17 0 18 18 K1 16 15 14 0 15 15 Kg 20 18 17 0 18 18 18 Kg 16 15 14 0 15 15 15 Automatic scheduling setup: optimize for uniform sky coverage at all stations, maximize the number of observations, minimize slewing time, minimize time between scans, consider the top 0 of ranked scans for selection, consider the last 0 hour of scans for sky coverage calculations, minimum : min between scans on the same source. The characteristics of the generated schedule are listed below. These will vary slightly for each schedule that is generated. Schedule characteristics: Average scan length 261 seconds Median SNR 30 at X-band 20 at S-band Number of observations 6511 observations Average scans per station 246 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) 1 x 8210.99 7680.0 2 x 8220.99 7680.0 3 x 8250.99 7680.0 4 x 8310.99 7680.0 5 x 8420.99 7680.0 6 x 8500.99 7680.0 7 x 8550.99 7680.0 8 x 8570.99 7680.0 9 s 2212.99 1600.0 10 s 2227.99 1600.0 11 s 2237.99 1600.0 12 s 2267.99 1600.0 13 s 2287.99 1600.0 14 s 2292.99 1600.0 APPENDIX ======== SKED Summary from file /home/sked/skd_files/jd1206.skd for experiment JD1206 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 4.5 Min = 0.0 Max = 22.7 (Baseline S3-Kg on OJ287 ) RMS = 6.5 Total time: 1438 minutes ( 24.0 hours). Key: Ts=TSUKUB32 Ai=AIRA Cc=CHICHI10 S3=SINTOTU3 Vm=VERAMZSW Vs=VERAISGK K1=KASHIM11 Kg=KOGANEI Ts Ai Cc S3 Vm Vs K1 Kg Avg % obs. time: 58 78 74 58 74 69 54 53 65 % cal. time: 0 0 0 0 0 0 0 0 0 % slew time: 15 9 9 20 17 17 11 11 14 % idle time: 26 12 15 21 7 13 34 35 21 total # scans: 289 224 222 284 246 227 294 293 259 # scans/hour : 12 9 9 12 10 9 12 12 11 Avg scan (sec): 175 299 289 177 261 263 159 157 222 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total GBytes: 908 1207 1155 903 1156 1076 840 827 1009 Total GB(M5): 808 1073 1027 802 1028 956 746 735 897 # of tapes : 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 8.0 Total GBytes (M5) recorded: 7174.2 # OF OBSERVATIONS BY BASELINE | Ts Ai Cc S3 Vm Vs K1 Kg StnTotal -------------------------------------------------- Ts| 223 219 271 239 220 282 282 1736 Ai| 213 221 216 200 223 223 1519 Cc| 217 213 198 217 217 1494 S3| 241 215 269 268 1702 Vm| 213 240 240 1602 Vs| 220 220 1486 K1| 291 1742 Kg| 1741 Number of 2-station scans: 14 Number of 3-station scans: 22 Number of 4-station scans: 30 Number of 5-station scans: 14 Number of 6-station scans: 14 Number of 7-station scans: 25 Number of 8-station scans: 192 Total # of scans, observations: 311 6511