JADE-1403 (Japanese Dynamic Earth observation by VLBI) 2014 March 19-20 Notes prepared by GSI Geospacial Information Authority of Japan Session JD1403 Start 2014-078 02:00:00 March 19 End 2014-079 01:49:09 March 20 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 2014 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 EA sec Corr. tape sync time sec Minimum scan length sec Maximum scan length sec Minimum SNR by baseline for multi-baseline scans X-band (margin 3) S-band (margin 3) Ai Cc Kb K1 Kg Ts Vs Ai Cc Kb K1 Kg Ts Vs Cc 16 Cc 14 Kb 20 20 Kb 15 15 K1 18 18 18 K1 15 15 15 Kg 18 18 18 18 Kg 15 15 15 15 Ts 21 21 21 21 21 Ts 15 15 15 15 15 Vs 17 16 18 18 18 21 Vs 14 14 15 15 15 15 Vm 17 16 18 18 18 21 18 Vm 14 14 15 15 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 237 seconds Median SNR 35 at X-band 25 at S-band Number of observations 5284 observations Average scans per station 196 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) APPENDIX ======== SKED Summary from file /opt/sked/skd_files/jd1403.skd for experiment JD1403 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 1.7 Min = 0.0 Max = 37.9 (Baseline Kb-Vm on 0537-441) RMS = 5.4 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Kb=KASHIM34 K1=KASHIM11 Kg=KOGANEI Ts=TSUKUB32 Vs=VERAISGK Vm=VERAMZSW Ai Cc Kb K1 Kg Ts Vs Vm Avg % obs. time: 83 84 11 54 54 10 77 77 56 % cal. time: 0 0 0 0 0 0 0 0 0 % slew time: 7 7 28 7 7 9 14 12 12 % idle time: 8 8 59 38 39 79 8 9 32 total # scans: 182 182 196 196 196 196 193 195 192 # scans/hour : 8 8 8 8 8 8 8 8 8 Avg scan (sec): 396 399 50 239 237 46 345 341 256 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total GBytes: 1296 1308 175 845 836 161 1198 1198 877 Total GB(M5): 1152 1163 156 751 743 143 1065 1065 780 # 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: 6237.8 # OF OBSERVATIONS BY BASELINE | Ai Cc Kb K1 Kg Ts Vs Vm StnTotal -------------------------------------------------- Ai| 182 182 182 182 182 182 181 1273 Cc| 182 182 182 182 182 181 1273 Kb| 196 196 196 193 195 1340 K1| 196 196 193 195 1340 Kg| 196 193 195 1340 Ts| 193 195 1340 Vs| 192 1328 Vm| 1334 Number of 2-station scans: 0 Number of 3-station scans: 0 Number of 4-station scans: 0 Number of 5-station scans: 3 Number of 6-station scans: 11 Number of 7-station scans: 1 Number of 8-station scans: 181 Total # of scans, observations: 196 5284