flying 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
irection 
= 
Fig. 
2 
  
  
  
  
  
  
  
  
equivalent 
  
Basic idea of the PSF measurment 
Ea 
Ge fp 
-— Lr 
= L 6 
  
  
  
  
  
  
  
  
  
  
  
  
  
Relative loca 
  
  
Line 
  
Line | 
  
  
  
  
  
  
Fiz. 
  
tions of pixels to the edge 
    
ed 
= AN 
= CC curve of 
o line | 
— T on 
£2 
Le 
] vor 
+] 
—— / (CC curve of 
line 141 
  
WV 
  
Column number 
3. CC curve of line l] and. itl 
TO