Report

Radio astronomy with multiband receivers and frequency phase transfer: Scientific perspectives The technique of frequency phase transfer (FPT), enabled by multiband receivers with shared optical path (SOP), is set to become a true backbone of VLBI operations at frequencies above 22 GHz. The FPT has been successfully implemented at the Korean VLBI Network (KVN), while […]

IGN Yebes Observatory Technology Development Center 2021–2022 Report The main technical developments of the Yebes Observatory (IGN, Spain) in 2021 and 2022 related to geodetic VLBI are introduced. J. A. Lopez-Pérez[1], C. Albo-Castaño[1], R. Amils-Samalot[1], L. Barbas-Calvo[1], M. Bautista-Durán[1], F. J. Beltrán-Martínez[1], M. Díez-González[1], J. D. Gallego-Puyol[1], P.García-Carreño[1], A. García-Castellano[1], A. García-Marín[1], O. García-Pérez[1], G.

RAEGE Station of Santa Maria 2021–2022 Biennial Report The RAEGE Station of Santa Maria, located in the Azores archipelago (Portugal), is one of the four stations of the RAEGE Network. As an highlight for this period one shall mention the installation of the new VGOS broadband receiver, the determination of the local tie pillars position

Observatory of Yebes Technological Development Center 2017-2018 Biennial Report We present the main technical developments of the Observatory of Yebes (IGN) from years 2017 and 2018 related to geodetic VLBI. P. de Vicente[1], J. A. Lopez-Pérez[1], F. Tercero-Martínez[1], J.M. Serna-Puente[1], B. Vaquero-Jiménez[1], M. Patino-Esteban[1], P. García-Carreño[1], J.D. Gallego-Puyol[1], I. Malo-Gómez[1], I. López-Fernández[1], M. Díez-González[1], J.

Assessment of DTRF2014 and ITRF2014 by Satellite Laser Ranging Satellite laser ranging orbital solutions, using observations of satellites LAGEOS and LAGEOS-2 collected from 2000 to 2017, were used to test the performance of two reference frame realisations, ITRF2014 and DTRF2014.We compare the post-fit residuals from solutions where only initial conditions and orbit parameters were solved