5. Ground Control Points. 
    
  
    
    
    
   
   
   
    
   
    
   
  
     
   
     
   
    
     
     
    
5.2; 
2.1 Number of ground control points per stereopair. 
Horizontal: Vertical: 
0,25 point 1 0,25 point T 
1 point 2 1 point 2 
€ points 3 4 points 22 
3 points 7 5 points 22 
4 points 23 6 points 4 
5 points 13 8 points 1 
6 points 2 i 
8 points 
differs (-9) 
not answered 2 
0 
differs 9 
not answered 2 
5.2le. Are coordinates of g.c.p. determined by ground control? 
yes 48 40 X 1 not answered 2 
no 5 70 % 2 
partly 3 90 X 1 
95 % 1 
5.21b Are coordinates of g.c.p. determined by radial triangulation? 
yes 8 50 % 1 not answered 2 
no 5) 
partly T 
2.210 Are coordinates of goCepe determined by aerotriangulation? 
yes 42 2 x 1 not answered 2 
no 11 20% 1 
partly 3 30 % 2 
60 X l 
5.22 Are there fixed tolerances for the accuracy of g.c 
epe determination? 
yes 58 no 5