JADE-1309 (Japanese Dynamic Earth observation by VLBI) 2013 September 05-06 Notes prepared by GSI Geospacial Information Authority of Japan Session JD1309 Start 2013-248 02:00:00 September 05 End 2013-249 01:57:06 September 06 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 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 K1 Kb Kg S3 Vs Ai Cc K1 Kb Kg S3 Vs Cc 16 Cc 14 K1 17 16 K1 14 14 Kb 20 20 18 Kb 15 15 15 Kg 18 18 18 18 Kg 15 15 15 15 S3 0 0 0 19 0 S3 0 0 0 15 0 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 223 seconds Median SNR 25 at X-band 20 at S-band Number of observations 5130 observations Average scans per station 201 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) APPENDIX ======== SKED Summary from file /opt/sked/skd_files/jd1309.skd for experiment JD1309 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 1.5 Min = 0.0 Max = 31.5 (Baseline K1-Vs on 0059+581) RMS = 4.9 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 K1=KASHIM11 Kb=KASHIM34 Kg=KOGANEI S3=SINTOTU3 Vs=VERAISGK Vm=VERAMZSW Ai Cc K1 Kb Kg S3 Vs Vm Avg % obs. time: 75 76 47 71 52 71 70 71 67 % cal. time: 0 0 0 0 0 0 0 0 0 % slew time: 7 7 6 24 6 12 13 13 11 % idle time: 17 17 46 4 41 17 16 15 22 total # scans: 180 180 201 188 201 184 188 194 189 # scans/hour : 8 8 8 8 8 8 8 8 8 Avg scan (sec): 360 363 201 325 223 331 323 318 304 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total GBytes: 1168 1176 726 1099 807 1097 1092 1111 1034 Total GB(M5): 1038 1045 646 977 717 975 971 988 919 # 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: 7355.7 # OF OBSERVATIONS BY BASELINE | Ai Cc K1 Kb Kg S3 Vs Vm StnTotal -------------------------------------------------- Ai| 180 180 180 180 179 178 180 1257 Cc| 180 180 180 179 178 180 1257 K1| 188 201 184 188 194 1315 Kb| 188 184 178 181 1279 Kg| 184 188 194 1315 S3| 177 179 1266 Vs| 188 1275 Vm| 1296 Number of 2-station scans: 0 Number of 3-station scans: 5 Number of 4-station scans: 16 Number of 5-station scans: 0 Number of 6-station scans: 0 Number of 7-station scans: 3 Number of 8-station scans: 177 Total # of scans, observations: 201 5130