Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003astl...29..667f&link_type=abstract
Astronomy Letters, vol. 29, p. 667-673 (2003)
Astronomy and Astrophysics
Astronomy
5
Scientific paper
We present the results of our processing of the first observations of extragalactic radio sources obtained with the eight-element International VLBI Network, which includes the Svetloe Russian Radio Astronomy Observatory equipped with a Mark 3A recording terminal. Our observations and their processing yielded highly accurate coordinates (in meters) of the Svetloe Observatory in the ITRF 2000 system: X = 2730173.854 +/- 0.002, Y = 1562442.668 +/- 0.004, Z = 5529969.069 +/- 0.007. We also show that including the Svetloe Observatory in the International Network led to an appreciable improvement in the accuracy of determining the Earth's rotation parameters (microarcseconds for the coordinates of the pole and nutation angles, microseconds for Universal Time): X_p = -154683 +/- 77, Y_p = 361809 +/- 59, UT1-UTC = -325162.9 +/- 2.5, Delta_psi = -53147 +/- 114, Delta_epsilon= -2286 +/- 47.
Finkelstein A. M.
Grachev V. G.
Ipatov A. V.
Malkin Z. M.
Rakhimov I. A.
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