EUROPE-62 (EUROPEAN Geodetic VLBI Network session No. 62) Schedule and Notes prepared by Axel Nothnagel, University of Bonn Geodetic Institute Date of experiment: 2001 December 10 Nominal start time: 12h00 UT Nominal end time: 12h00 UT on December 12, 2001 Duration: 24 hrs Correlator: Bonn Participating stations: Station Code Crimea Sm Effelsberg Eb Matera Ma Medicina Mc NyAlesund Ny Onsala60 On Wettzell Wz Yebes Yb Tape usage and scans to be observed: See summary of schedule below Purpose ======= The purpose of this experiment is to determine station coordinates and their evolution in the southern part of the European geodetic VLBI network with the highest precision possible. Schedule ======== The schedule was produced by Axel Nothnagel using the automatic mode of sked. The schedule was optimized for local sky coverage. The sky coverage for all stations were optimzed. Simeiz and Yebes are tagged along. The minimum SNR on all baselines is 40 at X band and 25 at S band. SNR between Onsala and NyAlesund as well as Onsala and Wettzell are reduced to 25/20 to avoid extraordinary scan lengths. The schedule was made with the early tape start feature. Wettzell was spared for IRIS-Intensive between 344-1803 and 344-1938. Procedures ========== The frequency sequence, EUR2-SX, used for the last EUROPE experiment will also be used for this experiment. Channel Sky Frequency ======= ============= X-band 1 8210.99 2 8220.99 3 8250.99 4 8310.99 5 8420.99 6 8500.99 7 8550.99 8 8580.99 S-band 1 2212.99 2 2227.99 3 2237.99 4 2267.99 5 2287.99 6 2292.99 Correlation =========== This experiment will be correlated at the Bonn Correlator. SKED Summary from file /diskB5/sked97/sched/euro62.skd for experiment EURO62 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 10.5 Min = .0 Max = 315.0 (Baseline Ny-On on CTA26 ) RMS = 18.6 Total time: 1444 minutes ( 24.1 hours). Key: Sm=CRIMEA Eb=EFLSBERG Ma=MATERA Mc=MEDICINA Ny=NYALES20 On=ONSALA60 Wz=WETTZELL Yb=YEBES Sm Eb Ma Mc Ny On Wz Yb Avg % obs. time: 29 10 44 30 58 57 54 32 39 % cal. time: 1 1 3 3 2 2 3 1 2 % slew time: 24 46 20 34 14 17 9 19 23 % idle time: 43 42 31 32 23 21 33 46 34 # of tapes : 1.8 .5 .7 .5 .9 .9 .8 1.8 total # scans: 139 143 282 282 258 255 261 162 222 # scans/hour : 5 5 11 11 10 10 10 6 9.3 Avg scan (sec): 185 61 138 92 196 196 180 174 152 # OF OBSERVATIONS BY BASELINE | Sm Eb Ma Mc Ny On Wz Yb StnTotal ---------------------------------------------- Sm|139 66 136 133 106 108 120 78 747 Eb| 143 130 131 120 120 120 80 767 Ma| 282 273 217 217 243 155 1371 Mc| 282 214 215 245 159 1370 Ny| 258 232 207 130 1226 On| 255 204 133 1229 Wz| 261 138 1277 Yb| 162 873 Number of 2-station scans: 34 Number of 3-station scans: 29 Number of 4-station scans: 34 Number of 5-station scans: 46 Number of 6-station scans: 82 Number of 7-station scans: 79 Number of 8-station scans: 27 Total # of scans, observations: 331 4430 Average baseline components for all observations Average XY = 1684. Average XZ = 1549. Average YZ = 1298. Average length = 1912.