Results 61 to 70 of about 160 (88)

Statistical Analysis of Five Years of VGOS Observations with Geophysical Loading Corrections

The VLBI Global Observing System (VGOS) represents a comprehensive overhaul of the VLBI system, under development since 2005. This system incorporates a broadband spectrum (2-14 GHz) and rapid, compact antennas. The redesign aims to enhance observational
Singh, Shivangi, Böhm, Johannes; orcid:, Balasubramanian, Nagarajan, Krasna, Hana; orcid:, Dikshit, Onkar   +4 more
core  

Results from the regional AUSTRAL VLBI sessions for Southern Hemisphere reference frames

, 2015
The AUSTRAL observing program is an initiative led by the Australian AuScope VLBI antennas in collaboration with radio telescopes in Warkworth, New Zealand, and Hartebeesthoek, South Africa. In 2014 the number of AUSTRAL sessions increased tremendously.
Jamie McCallum (14743666), Bohm, J (15604463), Gulyaev, S (15533489), Quick, J (15479525), Mayer, D (15510194), James Lovell (14742772), Stanislav Shabala (14749114), Lucia McCallum (14743669), Natusch, T (15518969), Weston, S (15612650), Sun, J (15590051), Rastorgueva-Foi, E (15604649), Titov, O (15571736)   +12 more
core  

Mitigating the effect of source structure in geodetic VLBI by re-weighting observations using closure delays and baseline-to-jet orientation

Publisher Copyright: © The Author(s) 2024.An ideal target for geodetic very long baseline interferometry (VLBI) is a strong and point-like radio source. In reality, most celestial sources used in geodetic VLBI have spatial structure.
Kareinen, Niko, Savolainen, Tuomas, Zubko, Nataliya, Poutanen, Markku, Xu, Ming Hui   +4 more
core   +1 more source

The AUSTRAL VLBI observing program. [PDF]

J Geod, 2017
Plank L, Lovell JEJ, McCallum JN, Mayer D, Reynolds C, Quick J, Weston S, Titov O, Shabala SS, Böhm J, Natusch T, Nickola M, Gulyaev S.   +12 more
europepmc   +1 more source

Impact of the terrestrial reference frame on the determination of the celestial reference frame. [PDF]

Geod Geodyn, 2019
Karbon M, Belda S, Nilsson T.
europepmc   +1 more source

Observing APOD with the AuScope VLBI Array. [PDF]

Sensors (Basel), 2018
Hellerschmied A, McCallum L, McCallum J, Sun J, Böhm J, Cao J.   +5 more
europepmc   +1 more source

Simulation studies of new observing concepts for geodetic Very Long Baseline Interferometry [Elektronisk resurs]

, 2017
Very Long Baseline Interferometry (VLBI) is a space-geodetic technique in which observations are carried out simultaneously by radio telescopes separated by hundreds or thousands of kilometers.
Klopotek, Grzegorz,
core  

New VLBI2010 scheduling strategies and implications on the terrestrial reference frames. [PDF]

J Geod, 2014
Sun J, Böhm J, Nilsson T, Krásná H, Böhm S, Schuh H.   +5 more
europepmc   +1 more source

Probing the solar corona with very long baseline interferometry. [PDF]

Nat Commun, 2014
Soja B, Heinkelmann R, Schuh H.
europepmc   +1 more source

Mitigating Source Structure in Geodetic VLBI on the Visibility Level

Geodetic and astrometric VLBI has entered a new era with the implementation of the VLBI Global Observing System (VGOS). These broadband and dual linear polarization observations aim at an accuracy of station coordinates of 1 mm and a reference frame ...
Collioud, Arnaud, Böhm, Johannes; orcid:, Krasna, Hana; orcid:, Marti-Vidal, Ivan, Nothnagel, Axel Gerhard, Pérez‐Díez, Victor, Gruber, Jakob; orcid:, Baldreich, Leo, Charlot, Patrick, Jaron, Frederic Felix Daniel; orcid:   +9 more
core   +1 more source