JADE-1306 (Japanese Dynamic Earth observation by VLBI) 2013 June 13-14 Notes prepared by GSI Geospatial Information Authority of Japan Session JD1306 Start 2013-164 02:00:00 June 13 End 2013-165 01:59:22 June 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 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 0 sec Corr. tape sync time 0 sec Minimum scan length 20 sec Maximum scan length 600 sec Minimum SNR by baseline for multi-baseline scans X-band (margin 3) S-band (margin 3) Ai Cc K1 Kg Kb Ai Cc K1 Kg Kb Cc 16 Cc 14 K1 17 16 K1 14 14 Kg 18 18 18 Kg 15 15 15 Kb 18 18 18 18 Kb 15 15 15 15 S3 0 0 0 0 18 S3 0 0 0 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 243 seconds Median SNR 25 at X-band 20 at S-band Number of observations 3192 observations Average scans per station 222 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) APPENDIX ======== SKED Summary from file /home/sked/skd_files/jd1306.skd for experiment JD1306 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 4.1 Min = 0.0 Max = 32.2 (Baseline K1-Kg on 1424-418) RMS = 6.5 Total time: 1440 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 K1=KASHIM11 Kg=KOGANEI Kb=KASHIM34 S3=SINTOTU3 Ai Cc K1 Kg Kb S3 Avg % obs. time: 70 70 48 52 62 62 61 % cal. time: 0 0 0 0 0 0 0 % slew time: 8 8 11 11 34 15 15 % idle time: 21 21 40 36 3 22 24 total # scans: 204 202 302 302 222 218 241 # scans/hour : 9 8 13 13 9 9 10 Avg scan (sec): 298 298 136 149 243 246 227 # data tracks: 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 Total GBytes: 1093 1083 742 810 972 964 944 Total GB(M5): 972 962 660 720 864 856 839 # of tapes : 1.0 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 6.0 Total GBytes (M5) recorded: 5033.9 # OF OBSERVATIONS BY BASELINE | Ai Cc K1 Kg Kb S3 StnTotal ---------------------------------------- Ai| 201 202 202 202 204 1011 Cc| 201 201 202 201 1006 K1| 299 220 212 1134 Kg| 217 215 1134 Kb| 213 1054 S3| 1045 Number of 2-station scans: 92 Number of 3-station scans: 5 Number of 4-station scans: 10 Number of 5-station scans: 1 Number of 6-station scans: 201 Total # of scans, observations: 309 3192