40 citations · 65 across the 5 of their papers we have counts for
6 papers
Consistency and precision of very long baseline interferometry source coordinate time series
X. -X. Zhang, N. Liu, S. B. Lambert +18
Coordinate time series of extragalactic radio sources from very long baseline interferometry observations are widely used to evaluate source positional stability, select stable sou…
The Astro2Geo Project I. Radio astrometric offsets correlated with Gamma-ray brightness
Jeffrey A. Hodgson, Hana Krasna, Aletha de Witt +2
Precision geodesy relies on the stability of the International Celestial Reference Frame (ICRF), yet its reference sources, Active Galactic Nuclei (AGN), exhibit changes in source…
Optimizing VGOS observations using an SNR-based scheduling approach
Matthias Schartner, Bill Petrachenko, Mike Titus +6
The geodetic and astrometric VLBI community is in the process of upgrading its existing infrastructure with VGOS. The primary objective of VGOS is to substantially boost the number…
The use of astronomy VLBA campaign MOJAVE for geodesy
Hana Krásná, Leonid Petrov
We investigated the suitability of the astronomical 15 GHz VLBA observing program MOJAVE-5 for estimation of geodetic parameters, such as station coordinates and Earth orientation…
Measurement of the solar system acceleration using the Earth scale factor
O. Titov, H. Krásná
We propose an alternative method to detect the secular aberration drift induced by the solar system acceleration due to the attraction to the Galaxy centre. This method is free of…
Free Core Nutation observed by VLBI
Hana Krásná, Johannes Böhm, Harald Schuh
The signature of free core nutation (FCN) is found in the motion of the celestial intermediate pole in the celestial reference frame and in the resonance behaviour of the frequency…