JADE-1106 (Japanese Dynamic Earth observation by VLBI) 2011 june 23-24 Notes prepared by YM Geographical Survey Institute, Japan Session JD1106 Start 2011-174 02:00:00 june 23 End 2011-175 01:55:59 june 24 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 2011 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 YM using sked. Schedule setup parameters: Early start sec Corr. tape sync time ON sec Minimum scan length sec Maximum scan length sec Minimum SNR by baseline for multi-baseline scans X-band (margin 5) S-band (margin 5) Ts Ai Cc S3 Ts Ai Cc S3 Ai 18 Ai 16 Cc 18 18 Cc 16 15 S3 18 10 10 S3 16 8 8 Vm 18 18 18 10 Vm 16 15 15 8 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 387 seconds Median SNR 25 at X-band 20 at S-band Number of observations 869 observations Average scans per station 184 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) 1 x 8204.99 7680.0 2 x 8214.99 7680.0 3 x 8244.99 7680.0 4 x 8304.99 7680.0 5 x 8414.99 7680.0 6 x 8494.99 7680.0 7 x 8544.99 7680.0 8 x 8564.99 7680.0 9 s 2232.99 1600.0 10 s 2240.99 1600.0 11 s 2256.99 1600.0 12 s 2312.99 1600.0 13 s 2344.99 1600.0 14 s 2352.99 1600.0 APPENDIX ======== SKED Summary from file /home/sked/skd_files/jd1106.skd for experiment JD1106 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 1.8 Min = 0.0 Max = 20.5 (Baseline Ts-S3 on 1034-293) RMS = 3.2 Total time: 1439 minutes ( 24.0 hours). Key: Ts=TSUKUB32 Ai=AIRA Cc=CHICHI10 S3=SINTOTU3 Vm=VERAMZSW Ts Ai Cc S3 Vm Avg % obs. time: 51 84 86 85 83 78 % cal. time: 0 0 0 0 0 0 % slew time: 12 8 7 9 13 10 % idle time: 36 7 6 5 4 12 total # scans: 247 193 160 135 184 183 # scans/hour : 10 8 7 6 8 8 Avg scan (sec): 178 377 464 543 387 389 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total GBytes: 791 1309 1337 1319 1283 1208 Total GB(M5): 704 1164 1189 1172 1140 1074 # of tapes : 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 5.0 Total GBytes (M5) recorded: 5368.2 # OF OBSERVATIONS BY BASELINE | Ts Ai Cc S3 Vm StnTotal ----------------------------------- Ts| 140 81 56 133 410 Ai| 77 80 49 346 Cc| 82 88 328 S3| 83 301 Vm| 353 Number of 2-station scans: 205 Number of 3-station scans: 118 Number of 4-station scans: 0 Number of 5-station scans: 31 Total # of scans, observations: 354 869