JADE-1101 (Japanese Dynamic Earth observation by VLBI) 2011 January 13-14 Notes prepared by mukai@gsi.go.jp Geographical Survey Institute, Japan Session JD1101 Start 2011-013 02:00:00 January 13 End 2011-014 01:50:00 January 14 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 mukai@gsi.go.jp using sked. Schedule setup parameters: Early start 0 sec Corr. tape sync time 0 sec Minimum scan length 30 sec Maximum scan length 600 sec Minimum SNR by baseline for multi-baseline scans X-band (margin 5) S-band (margin 5) Ai Cc Ts Vs Ai Cc Ts Vs Cc 18 Cc 15 Ts 20 20 Ts 16 16 Vs 20 20 20 Vs 16 16 16 Vm 20 20 20 20 Vm 16 16 16 16 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 3 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 240 seconds Median SNR 40 at X-band 20 at S-band Number of observations 2414 observations Average scans per station 260 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/jd1101.skd for experiment JD1101 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 4.9 Min = 0.0 Max = 36.3 (Baseline Ai-Vm on 0727-115) RMS = 9.3 Total time: 1438 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Ts=TSUKUB32 Vs=VERAISGK Vm=VERAMZSW Ai Cc Ts Vs Vm Avg % obs. time: 75 79 11 67 72 61 % cal. time: 2 2 2 1 2 1 % slew time: 11 11 14 15 18 14 % idle time: 11 7 73 16 7 23 total # scans: 266 268 272 218 260 256 # scans/hour : 11 11 11 9 11 11 Avg scan (sec): 245 256 34 265 240 207 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total GBytes: 1171 1235 164 1038 1122 946 Total GB(M5): 1041 1097 146 923 997 841 # 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: 4204.2 # OF OBSERVATIONS BY BASELINE | Ai Cc Ts Vs Vm StnTotal ----------------------------------- Ai| 262 263 216 253 994 Cc| 266 215 256 999 Ts| 215 259 1003 Vs| 209 855 Vm| 977 Number of 2-station scans: 6 Number of 3-station scans: 10 Number of 4-station scans: 53 Number of 5-station scans: 206 Total # of scans, observations: 275 2414