standard errors smaller than + 1 mm from original measurements 
in a free net adjustment. A resurvey after 8 years did not show 
significant alterations of coordinates. 
N 
  
  
  
  
Full Control 
Elevation Control 
Point Targeted for Ray Intersection 
Taking Positions Considered in Different Computations 
oeoeb 
Scale is appr. 1:6,700 
Fig.1. Test Range Brecherspitze. Net and Flight Configuration 
30