Thank you.

Assume that, in a monitoring network for concrete dam, accuracy requirement for the structure target points (95%RMS) is 5mm->standard deviation of all target points at each epoch must equal or smaller than 2.2mm.

Therefore, when designing the network in JAG3D, "A" is equal or smaller than 2.2mm, is that right?

One question, assume using Leica TC-2003 with angle standard deviation of this instrument is 0.5'', distance standard deviation is 1+1ppm. With angle is observed 24, distance is observed 24. What are uncertainty of angle and distance input to JAG3D? 0.5/sqrt/(24), (1+1ppm)/sqrt(24).