JADE-1307 (Japanese Dynamic Earth observation by VLBI) 2013 JUL 18-19 Notes prepared by GSI Geospatial Information Authority of Japan Session JD1307 Start 2013-199 02:00:00 JUL 18 End 2013-200 01:58:55 JUL 19 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 2013 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 GSI using sked. Schedule setup parameters: Early start 0 sec Corr. tape sync time 0 sec Minimum scan length 20 sec Maximum scan length 600 sec Minimum SNR by baseline for multi-baseline scans X-band (margin 3) S-band (margin 3) Ai Cc K1 Kg Kb S3 Vs Ai Cc K1 Kg Kb S3 Vs Cc 16 Cc 14 K1 17 16 K1 14 14 Kg 18 18 18 Kg 15 15 15 Kb 20 20 18 18 Kb 15 15 15 15 S3 0 0 0 0 19 S3 0 0 0 0 15 Vs 17 16 18 18 18 0 Vs 14 14 15 15 15 0 Vm 17 16 18 18 18 0 18 Vm 14 14 15 15 15 0 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 278 seconds Median SNR 30 at X-band 20 at S-band Number of observations 5346 observations Average scans per station 202 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) APPENDIX ======== SKED Summary from file /home/sked/skd_files/jd1307.skd for experiment JD1307 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 3.8 Min = 0.0 Max = 29.6 (Baseline K1-Kg on 1741-038) RMS = 6.1 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 K1=KASHIM11 Kg=KOGANEI Kb=KASHIM34 S3=SINTOTU3 Vs=VERAISGK Vm=VERAMZSW Ai Cc K1 Kg Kb S3 Vs Vm Avg % obs. time: 71 73 53 57 65 65 67 68 65 % cal. time: 0 0 0 0 0 0 0 0 0 % slew time: 8 7 13 13 30 14 15 15 15 % idle time: 20 19 33 29 4 20 17 16 20 total # scans: 179 179 324 315 202 200 210 219 228 # scans/hour : 7 7 14 13 8 8 9 9 10 Avg scan (sec): 345 351 142 156 278 280 275 267 261 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total GBytes: 1110 1131 826 886 1012 1008 1041 1054 1009 Total GB(M5): 987 1006 735 787 900 896 925 937 897 # 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: 7172.5 # OF OBSERVATIONS BY BASELINE | Ai Cc K1 Kg Kb S3 Vs Vm StnTotal -------------------------------------------------- Ai| 178 177 177 178 176 174 175 1235 Cc| 178 178 178 176 175 176 1239 K1| 314 194 190 208 218 1479 Kg| 195 189 200 209 1462 Kb| 196 180 186 1307 S3| 179 185 1291 Vs| 207 1323 Vm| 1356 Number of 2-station scans: 110 Number of 3-station scans: 14 Number of 4-station scans: 24 Number of 5-station scans: 6 Number of 6-station scans: 6 Number of 7-station scans: 4 Number of 8-station scans: 172 Total # of scans, observations: 336 5346