Diagnostics of Systematic Errors in Angle Measurements

Geodetic observations are influenced by a total error, which comprises of the systematic and random components. While, random errors are avoidable, the systematic ones should be eliminated or minimalized by the technology of measurement or by the observation corrections. Hence, the systematic errors are necessary to diagnose by the instrument calibration. This paper describes the process of diagnostics of the systematic errors, which influence angle measurements realized by total station. The diagnostic consists on the finding and specification of the particular components of instrument errors to eliminate them from the angle measurements.