The analytical planetary solution VSOP2000 determines the planetary perturb
ations with the help of an iterative method from a solution developed till
the third order of the disturbing masses. This solution is from 10 to 100 t
imes more precise than the previous analytical solutions VSOP82 and VSOP87,
at the level of some 0.1 mas for Mercury, Venus and the Earth and some mas
for the other planets over the timespan 1900-2000.
With this solution, the relation between the Barycentric Coordinate Time (T
CB) and the Geocentric Coordinate Time (TCG) is computed with an accuracy b
etter than 0.1 nanosecond over the interval 1965-2015. We also determined t
he contribution to the Eulerian angles of the geodetic precession-nutation.