The celestial pole coordinates

Details The celestial pole coordinates The celestial pole coordinates

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990cemda..48..127c&link_type=abstract

Celestial Mechanics and Dynamical Astronomy (ISSN 0923-2958), vol. 48, no. 2, 1990, p. 127-143.

Astronomy and Astrophysics

Astronomy

17

Astrometry, Celestial Reference Systems, Earth Rotation, Geocentric Coordinates, Nutation, Very Long Base Interferometry, Laser Ranger/Tracker, Planet Ephemerides, Spaceborne Lasers

Scientific paper

The matrix transformation of vector components from the celestial reference system (CRS) to the terrestrial reference system is considered analytically, with an emphasis on factors relevant to high-accuracy applications such as the reduction of VLBI or SLR observations. It is shown that the use of the CRS coordinates of the celestial ephemeris pole instead of the classical precession and nutation parameters offers greater conceptual and computational simplicity, since only the celestial direction cosines of the pole need to be known. The development of the celestial coordinates as a function of time is explored, and numerical results are presented in a table.

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