From the Solution Interface you can right-click on any individual instrument or “context” to access its properties and covariance information.
This dialog provides access to the active degrees of Freedom for the instrument. These are the degrees of freedom controlled by the network solution.
The Scaling Transform and Uncertainty Covariance Matrix reflect the position of the instrument and its base uncertainty.
This dialog also offers a means to directly access the points measured by the instrument and included in the solution. Right-click on a point to access its covariance matrix. This will match the covariance of the input point also available through the composite point properties.
Like USMN there are two options to consider when restricting degrees of freedom:
Instrument frame. This option allows each instrument to rotate about their own standing axis, and should be considered if instruments are constrained to level and have level compensators.
Network Reference Frame. This option provides a means to align instruments relative to each other in any orientation and hold that orientation independent of their own standing axis.