Smesta

Direction on the horizontal plane of the optical axis of the camera at the time of exposure. This direction is defined by its azimuth expressed in degrees in relation to true/magnetic north.

The process of communicating air surveillance and tactical data information between command and control systems or between facilities within the systems. Telling may be classified into the following types: a. Back tell - The transfer of information from a higher to a lower echelon of command. b. Cross tell - The transfer of information between facilities at the same operational level. c. Forward tell - The transfer of information to a higher level of command. d. Overlap tell - The transfer of information to an adjacent facility concerning tracks detected in the adjacent facility's area of responsibility. e. Relateral tell - The relay of information between facilities through the use of a third facility. This type of telling is appropriate between automated facilities in a degraded communication environment.

The horizontal direction expressed as an angular distance measured clockwise from compass north.