Author

• Alireza Owsati (Translation)

Abstract

In this regard, NASA's projects are currently conducted using Itek cameras with a large 26 × 23 cm frame and enjoying a lens with a 30-cm focal length (F=30) (1979 Doyle). These cameras are directly installed on the outer part of the pallet, which is set at the place of shuttle’s load. In this regard, refer to Figures 16-19. See the specifications of these two cameras in Table 3.
The ground scale and resolution of photography by these two cameras are very easy to capture; the main features of these cameras can be seen in their perspective dimensions. The Itek LFC cameras are, in fact, an idea within ​​the programs of developing American military surveying and identifying cameras with a 46x23cm frame. These cameras are capable of acting in both cross-tracking and along-tracking manners, and the case enjoying lens with higher geometric quality is utilized. In the case of a lens with a focal length of F = 30 centimeter in these cameras, an open angular cover of 74^o with a ratio of height to wide image of 0.6 (60% coverage) in the direction of the path is obtained.