EUROPE-56
              (EUROPEAN Geodetic VLBI Network session No. 56)
  
                        Schedule and Notes prepared by
       Axel Nothnagel, University of Bonn Geodetic Institute
  
Date of experiment:   2000 May 15  
Nominal start time:   12h00 UT
Nominal end   time:   12h00 UT on May 16, 2000

Duration:             24 hrs 


Correlator:    Bonn

Participating stations:

Station     Code  
DSS65        65
Matera       Ma
Medicina     Mc
Noto         Nt
Onsala       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.
Due to correlator transition to Mark IV only 7 stations will be correlated.
The minimum SNR on all baselines is 35 at X band and 25 at S band.
SNR between YEBES and Onsala and Yebes and Matera are 
reduced to 25/20 to avoid extraordinary scan lengths.

The schedule was made without the early tape start feature. 

Wettzell was spared for IRIS-Intensive
between 136-1647 and 136-1833



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              8570.99
  
               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/euro56.skd for experiment EURO56  

      (all scans with at least one subnet station)


 Average number of obs. per baseline per source (normalized by up-time) =  10.9
 Min =    .0   Max =   32.5 (Baseline On-Wz on 0454-234)   RMS =   7.7

 Total time:       1441 minutes ( 24.0 hours).

 Key:     65=DSS65      Ma=MATERA     Mc=MEDICINA   Nt=NOTO       On=ONSALA60
          Wz=WETTZELL   Yb=YEBES   

                  65  Ma  Mc  Nt  On  Wz  Yb  Avg
 % obs. time:     18  41  30  43  46  37  37  36 
 % cal. time:      2   2   2   2   2   2   2   2 
 % slew time:     39  15  32  36  17   8  23  24 
 % idle time:     39  40  33  17  33  50  37  36 
 # of tapes :     .3  .6  .5 2.3 2.6  .5 2.0
 total # scans:  173 241 240 237 235 221 197 220 
 # scans/hour :    7  10   9   9   9   9   8  9.2
 Avg scan (sec):  92 147 110 158 171 147 163 141 

      # OF OBSERVATIONS BY BASELINE

   | 65  Ma  Mc  Nt  On  Wz  Yb   StnTotal 
 ------------------------------------------
 65|173 161 166 162 158 143 151      941 
 Ma|    241 228 231 211 202 187     1220 
 Mc|        240 225 215 205 192     1231 
 Nt|            237 210 201 187     1216 
 On|                235 211 181     1186 
 Wz|                    221 174     1136 
 Yb|                        197     1072 


 Number of  2-station scans:   27
 Number of  3-station scans:   12
 Number of  4-station scans:   12
 Number of  5-station scans:   29
 Number of  6-station scans:   69
 Number of  7-station scans:  121

 Total # of scans, observations:   270    4001


 Average baseline components for all observations
  Average XY     = 1126.
  Average XZ     =  896.
  Average YZ     = 1106.
  Average length = 1329.