EUROPE-64 (EUROPEAN Geodetic VLBI Network session No. 64) Schedule and Notes prepared by Axel Nothnagel, University of Bonn Geodetic Institute Date of experiment: 2002 June 18 Nominal start time: 17h30 UT Nominal end time: 17h30 UT on June 19, 2002 Duration: 24 hrs Correlator: Bonn Participating stations: Station Code Crimea Sm Matera Ma Medicina Mc Noto Nt 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. Scans are scheduled to have scan length purely according to SNR limits. No 10-second modulo is applied. The sky coverage for all stations were optimized. 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 25/18 to avoid extraordinary scan lengths. The schedule was made with the early tape start feature. Wettzell was not scheduled between 18.13 and 19.50 for the Kokee - Wettzell Intensive. 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/euro64.skd for experiment EURO64 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 3.6 Min = .0 Max = 46.5 (Baseline Ny-Wz on 0458-020) RMS = 5.1 Total time: 1438 minutes ( 24.0 hours). Key: Sm=CRIMEA Ma=MATERA Mc=MEDICINA Nt=NOTO Ny=NYALES20 On=ONSALA60 Wz=WETTZELL Yb=YEBES Sm Ma Mc Nt Ny On Wz Yb Avg % obs. time: 28 40 34 47 33 37 37 36 36 % cal. time: 1 2 2 2 2 2 2 2 2 % slew time: 21 16 31 32 12 15 7 18 19 % idle time: 48 40 30 17 51 44 52 43 41 # of tapes : 1.6 .6 .5 .7 .5 .5 .5 .5 total # scans: 132 217 251 232 183 201 198 174 198 # scans/hour : 5 9 10 9 7 8 8 7 8.3 Avg scan (sec): 188 160 119 175 158 161 163 179 162 tape change times (hhmm): 0837 0000 0000 0000 0000 0000 0000 0000 # OF OBSERVATIONS BY BASELINE | Sm Ma Mc Nt Ny On Wz Yb StnTotal ---------------------------------------------- Sm|132 109 124 122 83 90 98 78 704 Ma| 217 199 194 140 163 168 144 1117 Mc| 251 220 148 167 191 171 1220 Nt| 232 123 146 168 164 1137 Ny| 183 165 140 107 906 On| 201 157 127 1015 Wz| 198 142 1064 Yb| 174 933 Number of 2-station scans: 39 Number of 3-station scans: 44 Number of 4-station scans: 33 Number of 5-station scans: 20 Number of 6-station scans: 49 Number of 7-station scans: 68 Number of 8-station scans: 47 Total # of scans, observations: 300 4048 --------------------end