Global geodetic observatories (GGO) play an increasingly important role both for scientific
and societal applications, in particular for the maintenance and evolution of the reference …

[EN] VLBI telescope reference point, the closest point in the telescope primary axis from the
secondary axis, is typically determined indirectly by observation of points co-rotating with the …

Tie vectors (TVs) between co-located space geodetic instruments are essential for
combining terrestrial reference frames (TRFs) realised using different techniques. They …

The determination of reference points for telescopes is crucial for obtaining the local‐tie
vector for a multi‐technology co‐located station. Traditional methods suffer from labor …

In order to function, modern society requires reliable and up-to-date spatial information.
Current positioning methods work in a global reference frame, which is the result of a …

Towards daily-based local ties at Fundamental Geodetic Sites Page 1 Towards daily-based
local ties at Fundamental Geodetic Sites Development of local tie processes as a part of the …

Large VLBI telescopes undergo gravitational deformations which affect both geodetic and
astronomic observations as well as the real reference point (RP) position (ie the reference …

This report summarizes the activity of the Italian INAF VLBI Analysis Center. Our Analysis
Center is located in Bologna, Italy and belongs to the Institute of Radioastronomy, which is …