Variance-covariance matrix for a network adjustment
by Chris Crook 
, Tuesday, June 18, 2024, 07:15 (156 days ago) @ Micha
The LINZ pyaxis software does include estimation and covariance of the antenna invariant point. It is a python software and much cruder than JAG3D, but it does provide this feature. It was written specifically for local tie surveys. Details at:
https://github.com/linz/python-linz-pyaxis
Regards
Chris Crook
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