Leica TPS1200 series Technical Reference Manual page 1053

Diagram
Sets of Angles
P1
P2
P3
P0
TPS12_136
Known:
P1 Pre-defined target point - E,N,Height (optional)
P2 Pre-defined target point - E,N,Height (optional)
P3 Pre-defined target point - E,N,Height (optional)
P4 Pre-defined target point - E,N,Height (optional)
P5 Pre-defined target point - E,N,Height (optional)
Unknown:
a) Mean direction and mean distance (optional) to each target point, within a set
b) Residual for each direction and distance (optional ), within a set
c) Reduced average direction and average distance (optional) to each target point, for all active sets
Measure at least:
a) Two target points
b) Two sets
P5
P4
TPS1200 1053