RAEGE Santa Maria: Station overview The RAEGE station of Santa Maria is part of the RAEGE network (Atlantic Network of Geodynamic and Space Stations), a cooperation project established between the National Geographic Institute of Spain (IGN) and the Regional Government of the Azores. It is a unique project at a geodetic and geodynamic level, in […]
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Analysis of VGOS sessions: Evaluation of performance with different software VGOS (VLBI Global Observation System) is a new generation VLBI system. It has been developed since 2005 and it is based on the so-called broadband delay that uses four or more frequency bands. High data rate observations are taken by fast-slewing antennas, smaller than those
Analysis of VGOS sessions: Evaluation of performance with different software Leer más »
New Cable Delay Measurement System for VGOS Stations This paper presents the new cable delay measurement system (CDMS) designed at Yebes Observatory (IGN, Spain), which is required for the VLBI Global Observing System (VGOS) stations. This system measures the phase difference between the 5 MHz reference signal from the hydrogen maser and the 5 MHz
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Advancing Solar System Dynamics Investigations with Calibrated Precision Doppler Tracking Planetary gravitation and solar system dynamics investigations rely on precision Doppler tracking of spacecraft. In the most sensitive Doppler measurements carried out by the NASA/JPL Deep Space Network (Allan deviations ~3×10-15 at 1000 s integration time), the unmodeled time-dependent motion of the large (34 m)
Advancing Solar System Dynamics Investigations with Calibrated Precision Doppler Tracking Leer más »
Geodetic data analysis of VGOS experiments Very Long Baseline Interferometry (VLBI) serves as one of the common geodetic methods to define the global reference frames and monitor Earth’s orientation variations. The technical upgrade of the VLBI method known as the VLBI Global Observing System (VGOS) includes a critical re-design of the observed frequencies from the
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Satellite Laser Ranging Satellite Laser Ranging (SLR) is a space geodetic technique that consists in the measurement of the time-of-flight of laser photons emitted from ground stations to retroreflectors onboard satellites in orbit. Accurate and precise observations, at the level of a few millimetres, of the instantaneous ranges to the targets tracked are thus acquired,
Satellite Laser Ranging Leer más »
The Atlantic Network of Geodynamic and Space Stations (RAEGE) This paper shows the current status of the Red Atlántica de Estaciones Geodinámicas y Espaciales (RAEGE), a joint Spanish-Portuguese infrastructure of geodetic stations. When complete, it will be composed of four VGOS (VLBI Global Observing System) radio-telescopes, two in Spain (Yebes and Gran Canaria) and two
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A Tri-Band Cooled Receiver for Geodetic VLBI This paper shows a simultaneous tri-band (S: 2.2–2.7 GHz, X: 7.5–9 GHz and Ka: 28–33 GHz) low-noise cryogenic receiver for geodetic Very Long Baseline Interferometry (geo-VLBI) which has been developed at Yebes Observatory laboratories in Spain. A special feature is that the whole receiver front-end is fully coolable
A Tri-Band Cooled Receiver for Geodetic VLBI Leer más »
A geodetic VLBI experiment with the dissemination of a common clock via coherent optical fibre link Ricci, R.[1]; Negusini, M.[1]; Perini, F.[1]; Calonico, D.[1]; Clivati, C.[1]; Mura, A.[1]; Levi, F.[1]; Siciliani-de-Cumis, M.[1]; Santamaria-AmatoRoma, M.[1]; Bortolotti, C.[1]; Maccaferri, G.[1]; Stagni, M.[1]; Haas, R.[1]; Tercero, B.[1] Type Presentation Event 25th EVGA Working Meeting, 2021 [1] Yebes Observatory,
Preamplifier module for VGOS and legacy S/X observations compatibility in the presence of RFI signals Lopez-Perez, J. A.[1]; Patino-Esteban, M.[1]; Garcia-Carreno, P.[1]; Serna-Puente, J. M.[1]; Bautista-Duran, M.[1]; Rivera-Lavado[1] Type Presentation Event 25th EVGA Working Meeting, 2021 [1] Yebes Observatory, Instituto Geográfico Nacional, Guadalajara, España Volver a la página de Publicaciones