JADE-0510 (Japanese Dynamic Earth observation by VLBI) 2005 OCT 13-14 Notes prepared by fujisaku@gsi.go.jp Geographical Survey Institute, Japan Session JD0510 Start 2005-286 02:00:00 OCT 13 End 2005-287 01:50:47 OCT 14 Stations 4 Ts TSUKUB32 T Ai AIRA A Cc CHICHI10 C S3 SINTOSU3 J 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 2005 fiscal year, JADE session will be carried out once a month. NETWORK ======= The standard configuration of the JADE projests consists of four stations. Station: Code Tsukuba Ts Aira Ai Chichijima Cc Shintotsukawa S3 SCHEDULE ======== This schedule was made by fujisaku@gsi.go.jp using sked. Schedule setup parameters: Early start 0 sec Corr. tape sync time 0 sec Minimum scan length 40 sec Maximum scan length 784 sec Minimum SNR by baseline for multi-baseline scans X-band (margin 8) S-band (margin 8) Ts Ai Cc Ts Ai Cc Ai 18 Ai 16 Cc 18 16 Cc 16 15 S3 18 0 0 S3 16 0 0 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 LatLonH of ranked scans for selection, consider the last 24 hour of scans for sky coverage calculations, minimum 30 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 282 seconds Median SNR 25 at X-band 20 at S-band Number of observations 1126 observations Average scans per station 197 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) 1 x 8209.99 7680.0 2 x 8219.99 7680.0 3 x 8249.99 7680.0 4 x 8309.99 7680.0 5 x 8419.99 7680.0 6 x 8499.99 7680.0 7 x 8549.99 7680.0 8 x 8569.99 7680.0 9 s 2239.99 1600.0 10 s 2244.99 1600.0 11 s 2259.99 1600.0 12 s 2289.99 1600.0 13 s 2319.99 1600.0 14 s 2329.99 1600.0 15 s 2344.99 1600.0 16 s 2354.99 1600.0 APPENDIX ======== SKED Summary from file /home/sked/skd_files/jd0510.skd for experiment JD0510 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 36.6 Min = .0 Max = 4320.0 (Baseline Ai-S3 on 0059+581) RMS = 313.9 Total time: 1432 minutes ( 23.9 hours). Key: Ts=TSUKUB32 Ai=AIRA Cc=CHICHI10 S3=SINTOTU3 Ts Ai Cc S3 Avg % obs. time: 46 83 83 45 64 % cal. time: 2 2 2 2 2 % slew time: 9 6 5 16 9 % idle time: 41 8 7 35 23 total # scans: 207 199 196 186 197 # scans/hour : 8 8 8 7 8.2 Avg scan (sec): 193 361 367 210 282 Total GBytes: 721 1293 1296 704 1004 Total GB(M5): 641 1149 1152 626 892 # of tapes : 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 4.0 Total GBytes (M5) recorded: 3569.9 # OF OBSERVATIONS BY BASELINE | Ts Ai Cc S3 StnTotal ------------------------------ Ts|207 199 196 186 581 Ai| 199 190 179 568 Cc| 196 176 562 S3| 186 541 Number of 2-station scans: 4 Number of 3-station scans: 32 Number of 4-station scans: 171 Total # of scans, observations: 207 1126