149 
(1) and 
(2) 
= A 
^ H * 
where 
H — the altitude of survey over horizontal 
plane used as a starting level for calculation of 
elevations of the control points; 
r — radius-vector of the point on the image 
which coordinates are to be corrected: 
total sum is not more than 0.3 mm. In that total 
allowance also a correction for the image inclination 
in the moment of survey determined by the formula, 
may he included: 
In this formula <£' is an angle of image 
inc1 inat ion. 
Summing the ratio (1), (2), (3) and equating 
them to 0.3 you will have the function: 
in this function n is the magnification of the 
scale of colour composite photomosaic in relation to 
the scale of spectral images. 
Using from (4) h as a function of r and , we 
can pass to the formula 
R— The Earth's radius; 
f — focal distance of the survey camera 
h — elevation of the control over the 
rectification plane 
( 3 ) 
/ 
Hr 1 
u. 
o S 
/ 
(4) 
+ 
~L f- 
~~ <f 
/