EUROPE-58 (EUROPEAN Geodetic VLBI Network session No. 58) Schedule and Notes prepared by Axel Nothnagel, University of Bonn Geodetic Institute Date of experiment: 2000 September 4 Nominal start time: 12h00 UT Nominal end time: 12h00 UT on September 5, 2000 Duration: 24 hrs Correlator: Bonn Participating stations: Station Code Crimea Sm Matera Ma Noto Nt NyAlesund Ny Onsala On Wettzell Wz Yebes Yb (not yet determined) 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 is tagged along. Due to correlator transition to Mark IV only 6 stations will be correlated. For Yebes a schedule in tagalong mode is generated in case it will participate on a hot swap basis. The minimum SNR on all baselines is 35 at X band and 25 at S band. SNR between Onsala and Matera are reduced to 25/20 to avoid extraordinary scan lengths. The schedule was made without the early tape start feature. Wettzell was not spared for IRIS-Intensive because there is a public holiday in the US and no Intensive scheduled for that day. 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/euro58.skd for experiment EURO58 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 10.2 Min = .0 Max = 54.5 (Baseline Ny-On on CTA26 ) RMS = 9.7 Total time: 1440 minutes ( 24.0 hours). Key: Sm=CRIMEA Ma=MATERA Nt=NOTO Ny=NYALES20 On=ONSALA60 Wz=WETTZELL Yb=YEBES Sm Ma Nt Ny On Wz Yb Avg % obs. time: 34 45 45 54 51 48 35 45 % cal. time: 1 2 2 2 2 2 2 2 % slew time: 24 17 34 13 16 8 19 19 % idle time: 39 34 16 29 29 40 42 33 # of tapes : 2.0 .7 2.4 .8 2.8 .7 1.9 total # scans: 158 245 237 233 229 242 173 216 # scans/hour : 6 10 9 9 9 10 7 9.0 Avg scan (sec): 188 160 166 201 195 172 178 180 # OF OBSERVATIONS BY BASELINE | Sm Ma Nt Ny On Wz Yb StnTotal ------------------------------------------ Sm|158 152 147 126 123 145 109 802 Ma| 245 233 186 189 219 165 1144 Nt| 237 180 185 214 165 1124 Ny| 233 209 205 141 1047 On| 229 195 142 1043 Wz| 242 162 1140 Yb| 173 884 Number of 2-station scans: 37 Number of 3-station scans: 33 Number of 4-station scans: 24 Number of 5-station scans: 45 Number of 6-station scans: 69 Number of 7-station scans: 87 Total # of scans, observations: 295 3592 Average baseline components for all observations Average XY = 1904. Average XZ = 1768. Average YZ = 1524. Average length = 2188.