11 citations · 28 across the 9 of their papers we have counts for
9 papers
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…
Filling the gap in the IERS C01 polar motion series in 1858.9-1860.9
Zinovy Malkin, Nina Golyandina, Roman Olenev
The C01 Earth orientation parameters (EOP) series provided by the International Earth Rotation and Reference Systems Service (IERS) is the longest reliable record of the Earth's ro…
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,…
Should We Expect Further Acceleration of the Earth's Rotation in the Coming Years?
Zinovy Malkin
Recently, it has been suggested in the literature that the difference between universal and coordinated time UT1-UTC could reach a large positive value in the coming years (Agnew 2…
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…
The influence of Galactic aberration on precession parameters determined from VLBI observations
Z. M. Malkin
The influence of proper motions of sources due to Galactic aberration on precession models based on VLBI data is determined. Comparisons of the linear trends in the coordinates of…
Parameters of the Free Core Nutation from VLBI Data
Z. Malkin, D. Terentev
Several VLBI EOP series were investigated with goal of determination of parameters of the Free Core Nutation (FCN). Both the amplitude and period of the FCN were studied using spec…