JADE-1310 (Japanese Dynamic Earth observation by VLBI) 2013 October 10-11 Notes prepared by GSI Geospacial Information Authority of Japan Session JD1310 Start 2013-283 02:00:00 October 10 End 2013-284 01:47:43 October 11 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 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 Ai Cc Kb Cc 16 Cc 14 Kb 20 20 Kb 15 15 S3 0 0 19 S3 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 344 seconds Median SNR 20 at X-band 20 at S-band Number of observations 1101 observations Average scans per station 183 scans FREQUENCY SEQUENCE ================== Chann# Band Skyfreq(MHz) LOfreq(MHz) APPENDIX ======== SKED Summary from file /opt/sked/skd_files/jd1310.skd for experiment JD1310 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 1.6 Min = 0.0 Max = 34.6 (Baseline Ai-S3 on CTA26 ) RMS = 5.6 Total time: 1438 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Kb=KASHIM34 S3=SINTOTU3 Ai Cc Kb S3 Avg % obs. time: 76 76 71 71 74 % cal. time: 0 0 0 0 0 % slew time: 6 7 24 11 13 % idle time: 16 16 4 17 14 total # scans: 184 183 184 184 183 # scans/hour : 8 8 8 8 8 Avg scan (sec): 358 360 332 332 344 # data tracks: 16 16 16 16 # Mk5 tracks: 16 16 16 16 Total GBytes: 1187 1186 1099 1099 1143 Total GB(M5): 1055 1054 977 977 1016 # of tapes : 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 4.0 Total GBytes (M5) recorded: 4062.6 # OF OBSERVATIONS BY BASELINE | Ai Cc Kb S3 StnTotal ------------------------------ Ai| 183 184 184 551 Cc| 183 183 549 Kb| 184 551 S3| 551 Number of 2-station scans: 0 Number of 3-station scans: 1 Number of 4-station scans: 183 Total # of scans, observations: 184 1101