JADE-1010 (Japanese Dynamic Earth observation by VLBI) 2010 October 19-20 Notes prepared by r-kawabata@gsi.go.jp Geographical Survey Institute, Japan Session JD1010 Start 2010-292 18:00:00 October 19 End 2010-293 17:58:07 October 20 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 2010 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 r-kawabata@gsi.go.jp 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 3) S-band (margin 0) Ts Ts S3 20 S3 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 4 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 seconds Median SNR 25 at X-band 20 at S-band Number of observations 225 observations Average scans per station 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/jd1010.skd for experiment JD1010 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 4.6 Min = 0.0 Max = 27.5 (Baseline Ts-S3 on 1741-038) RMS = 7.0 Total time: 1440 minutes ( 24.0 hours). Key: Ts=TSUKUB32 S3=SINTOTU3 Ts S3 Avg % obs. time: 81 81 81 % cal. time: 1 1 1 % slew time: 11 16 14 % idle time: 5 1 4 total # scans: 225 225 225 # scans/hour : 9 9 9 Avg scan (sec): 312 312 311 # data tracks: 16 16 # Mk5 tracks: 16 16 Total GBytes: 1262 1262 1262 Total GB(M5): 1122 1122 1122 # of tapes : 1.0 1.0 tape change times (hhmm): Total number of tapes: 2.0 Total GBytes (M5) recorded: 2244.2 # OF OBSERVATIONS BY BASELINE | Ts S3 StnTotal -------------------- Ts| 225 225 S3| 225 Number of 2-station scans: 225 Total # of scans, observations: 225 225