JADE-1410 (Japanese Dynamic Earth observation by VLBI) 2014 Oct. 16-17 Notes prepared by GSI Geospacial Information Authority of Japan Session JD1410 Start 2014-289 02:00:00 Oct. 16 End 2014-290 01:54:21 Oct. 17 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 Ai Cc Kb K1 Kg Ts 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 Vm 17 17 17 17 17 17 Vm 15 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 191 seconds Median SNR 35 at X-band 25 at S-band Number of observations 4961 observations Average scans per station 250 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) APPENDIX ======== SKED Summary from file /opt/sked/skd_files/jd1410.skd for experiment JD1410 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 1.9 Min = 0.0 Max = 42.8 (Baseline Ai-Vm on 0537-441) RMS = 6.5 Total time: 1439 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Kb=KASHIM34 K1=KASHIM11 Kg=KOGANEI Ts=TSUKUB32 Vm=VERAMZSW Ai Cc Kb K1 Kg Ts Vm Avg % obs. time: 76 81 8 55 55 7 63 49 % cal. time: 0 0 0 0 0 0 0 0 % slew time: 9 9 34 8 8 12 14 14 % idle time: 15 9 57 36 36 80 22 37 total # scans: 231 244 248 249 250 250 227 242 # scans/hour : 10 10 10 10 10 10 9 10 Avg scan (sec): 282 287 28 191 191 24 240 177 # data tracks: 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 Total GBytes: 1174 1262 127 858 858 109 979 767 Total GB(M5): 1044 1122 113 762 762 97 871 682 # of tapes : 1.0 1.0 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 7.0 Total GBytes (M5) recorded: 4770.9 # OF OBSERVATIONS BY BASELINE | Ai Cc Kb K1 Kg Ts Vm StnTotal --------------------------------------------- Ai| 225 229 230 231 231 219 1365 Cc| 242 243 244 244 223 1421 Kb| 248 248 248 227 1442 K1| 249 249 227 1446 Kg| 250 227 1449 Ts| 227 1449 Vm| 1350 Number of 2-station scans: 0 Number of 3-station scans: 0 Number of 4-station scans: 1 Number of 5-station scans: 14 Number of 6-station scans: 20 Number of 7-station scans: 215 Total # of scans, observations: 250 4961