11 citations · 28 across the 9 of their papers we have counts for
5 papers · 1 filter
Evolution of the radio source position uncertainties in radio astrometric catalogs over the past three decades
Zinovy Malkin
In this paper, progress in improving the coordinates uncertainty of extragalactic radio sources derived from astrometric and geodetic VLBI observations is investigated. For this pu…
Improving source positions in the OCARS catalog: A first approach
Zinovy Malkin
OCARS (Optical Characteristics of Astrometric Radio Sources) is a compiled catalog of various additional data associated with astrometric radio sources whose coordinates have been…
On the Use of Vector Spherical Harmonics
Zinovy Malkin
In many astronomical works, the structure of vector fields is analyzed, such as the differences in the celestial object coordinates in catalogs or the celestial object velocities,…
Statistical analysis of the results of 20 years of activity of the International VLBI Service for Geodesy and Astrometry
Zinovy Malkin
2019 marked the 20th anniversary of the International VLBI Service for Geodesy and Astrometry (IVS). This service is the largest and most authoritative organization that coordinate…
Connecting terrestrial to celestial reference frames
Zinovy Malkin
In this paper we outline several problems related to the realization of the international celestial and terrestrial reference frames --- the ICRF and ITRF --- at the millimeter lev…