228 
Fig.3 Functional relationship between observation space, 
image space and object space 
The following formulations are valid for the WILD A8 instrument, 
a) Relationship between image space and pseudo-model space: 
X J ' - x j 
x^ - x 1 
1 0 
P 
Y i ' Y i 
= Ej (<Pj «j Kj) 
y j - 
Z i " Z o 
- c J 
_ _ 
where: R^ = R 2 (<Pj)'Ei ( w j)'—3 ( K j) 
j = 1,2 and i = 1,2,...n