JADE-1405 (Japanese Dynamic Earth observation by VLBI) 2014 May 22-23 Notes prepared by GSI Geospacial Information Authority of Japan Session JD1405 Start 2014-142 02:00:00 May 22 End 2014-143 01:56:24 May 23 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 15 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 186 seconds Median SNR 35 at X-band 20 at S-band Number of observations 6358 observations Average scans per station 233 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) APPENDIX ======== SKED Summary from file /opt/sked/skd_files/jd1405.skd for experiment JD1405 (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 = 35.3 (Baseline Cc-Vs on 1749+096) RMS = 6.1 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: 77 78 8 50 50 7 71 73 52 % cal. time: 0 0 0 0 0 0 0 0 0 % slew time: 10 10 35 8 8 12 16 16 15 % idle time: 12 12 56 40 41 80 11 11 33 total # scans: 226 227 233 233 233 233 225 229 229 # scans/hour : 9 9 10 10 10 10 9 10 10 Avg scan (sec): 294 297 29 186 186 26 273 275 195 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total GBytes: 1197 1212 122 782 779 108 1107 1134 805 Total GB(M5): 1064 1077 109 695 692 96 984 1008 716 # 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: 5724.0 # OF OBSERVATIONS BY BASELINE | Ai Cc Kb K1 Kg Ts Vs Vm StnTotal -------------------------------------------------- Ai| 223 226 226 226 226 220 223 1570 Cc| 227 227 227 227 221 224 1576 Kb| 233 233 233 225 229 1606 K1| 233 233 225 229 1606 Kg| 233 225 229 1606 Ts| 225 229 1606 Vs| 221 1562 Vm| 1584 Number of 2-station scans: 0 Number of 3-station scans: 0 Number of 4-station scans: 0 Number of 5-station scans: 1 Number of 6-station scans: 6 Number of 7-station scans: 10 Number of 8-station scans: 216 Total # of scans, observations: 233 6358