The information making up an observation depends on the current configuration:
· If the program is configured in total station mode, the components also depend on its configuration: horizontal angle, reduced or geometric distance, vertical angle or height difference, and stake or prism height.
· If it is in tachometer mode, each observation consists of: horizontal angle, vertical angle, thread 1 and thread 2.
Station observations are identified by their station of origin, instrument height (in other words, instrument set-up) and name of their target station. On the other hand, point observations are identified by their point number.
TcpMDT