Astrogeo Center

Astronomy

• Results:
  • Radio Fundamental Catalogue of compact radio sources. Provides positions, maps, and estimates of the correlated flux density for over 7000 extragalactic sources.
  • VLBI Calibrator search engine allows to find compact radio sources useful as a calibrator for VLBI experiments within the specified search radius of the target objects.
  • The VLBI image database of compact radio sources. Provides over 28,000 images of active galaxy nuclei in radio waves.

• On-going and completed astronomy projects.

Space geodesy

• Geodetic solutions using all VLBI observations. Provide station positions, the parameters of their motion, source coordinates, Earth orientation parameters, etc.
• The atmospheric pressure loading service for computing displacements for ∼ 700 sites.
• Harmonic station position variations determined by VLBI.
• Empirical Earth Rotation model derived from analysis of VLBI observations from 1984 through 2009.

Software

• The VTD library of routines for computing VLBI path delay and Doppler shift with the highest accuracy.
• Software package solid for computing displacements caused by solid Earth tides.
• Library petools — a toolkit for astronomy and space geodesy software.

This web page was prepared by Leonid Petrov ()
Last update: 2012.04.14_22:38:25