Library VTD for computation of VLBI time delay
Library VTD computes
a priori VLBI time delay and delay rate with precision needed for geodetic
applications. Terms which contributes to delay at the level 10-13
sec for delay and 10-15 for delay rate are kept. The accuracy of
VTD is determined by the accuracy of a priori values. If the apriori site
positions, source coordinates, EOP, tropospheric path in zenith direction
were perfect, the theoretical time delay and delay rate would be accurate
to that level. Library VTD
also computes the Doppler frequency shift for the Solar system objects.
License: GNU Public License.
The latest version vtd-20180630.tar.bz2
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This web page was prepared by Leonid Petrov
Last update: 2018.06.30_10:14:08