hr 10 km 
Standard Errors of Radial Distortion 
Effects upon Rays of Refraction and 
Curvature. 
Max. Differences of Ground 
Elevations 100 m. 
microns 
Standard Errors of Radiol Distortion 
Effects in the Image of Refraction and Curvature. 
c=152mm / h=10km 
Max. Differences of Ground Elevations 100 m.//hr 4 km 
'hr 1km 
Fig. 1.1:3 
Fig. 1.1:5 
microns 
4 
Standard Errors of Radial Distortion 
Effects in the Image of Refraction and Curvature, 
c = 88 mm 
5F 
Max. Elevation Differences of Ground Elevations 10m. 
Fig. 1.1:6 
hriO km