ABSTRACT 
The description, operation, and accuracy, of the 
three basic optical instrumentation systems in 
use at the Air Force Missile Test Center for ob- 
taining missile trajectory information are discussed. 
These are the Ballistic Camera, the CZR-1 Fixed 
Camera, and the Askania Cine-Theodolite. The 
present philosophy for using optical systems to 
obtain missile positlon data is that of Intersection 
Photogrammetry. A discussion of this concept, 
together with the associated error propagation, 
both random and systematic, is also presented.