JUMPING JIVE aimed to enable geodetic capabilities for the JIVE correlator. The analysis of the data from an experiment specifically designed and run on the EVN to derive coordinates of the non-geodetic EVN telescopes demonstrated the validity of the preceding accomplishments within the JUMPING JIVE project to develop the geodetic path at JIVE. The improved empirical station velocities for non-geodetic EVN telescopes will replace model-based ones that are currently used in scheduling/correlation catalogs, and thus will bring benefits to phase-referencing observations throughout the EVN.

• JIVE and CNRS/Bordeaux built a data interface that allowed JUMPING JIVE to compare the outputs obtained with the software's of the EVN Correlator and the Bonn DiFX correlator to test the feasibility for geodetic analysis. A 24-hour International VLBI Service for Geodesy and Astrometry session was conducted in December 2018 involving 8 EVN stations. The results of the comparison indicated agreement of the multi-band delays at the level of consistency expected, confirming that the implementation was successful, and, thus, meaning that any geodetic-style session using EVN software correlator at JIVE can now be post-processed, exported in the standard format and analysed with the most common geodetic tools. Another technical geodetic capability added by JUMPING JIVE was adapting the EVN software correlator at JIVE (SFXC) to observe as many targets as possible well spread throughout the sky as quickly as possible, which is a common feature for geodetic VLBI. 
• To test the new geodetic capabilities,  an experiment was carried out involving EVN stations. The results were quite satisfactory, with the weighted RMS of delay residuals at the cm level for both geodetic and non-geodetic stations. The results were also in agreement with a previous test carried out by EVN in 200, finding similar agreement. The comparison with the experiment done 20 years ago also permitted measuring the components of the velocities of the stations involved. The magnitude of the velocities calculated were in agreement with the motions derived from plate tectonic models for Europe.

The analysis of the data from the geodetic-type experiment specifically designed and run on the EVN to derive coordinates of the non-geodetic EVN telescopes demonstrated the validity of the preceding accomplishments within JUMPING JIVE to develop the geodetic path at JIVE. The improved empirical station velocities for non-geodetic EVN telescopes will replace model-based ones that are currently used in scheduling/correlation catalogs, and thus will bring benefits to phase-referencing observations throughout the EVN.

Deliverables

• D6.1: New correlator products
• D6.2: Software to deal with geodetic observing schedules
• D6.3: Analysis of EVN station positions