function [Jul1,Jul2]=GPS2TCG(Jul1,Jul2)
%GPS2TT  Convert from the timescale used by the Global Positioning System
%           (GPS)  given as a two-part Julian date to geocentric coordinate
%           time (TCG), represented as a two-part Julian date.
%
%INPUTS:    Jul1, Jul2  Two parts of a Julian date given in GPS time. The
%                       units of the date are days. The full date is the
%                       sum of both terms. The date is broken into two
%                       parts to provide more bits of precision. It does
%                       not matter how the date is split.
%
%OUTPUTS:   Jul1, Jul2  The time as a Julian date in TCG.
%
%This function just calls GPS2TAU and TAI2TCG.
%
%Many temporal coordinate systems standards are compared in [1].
%
%REFERENCES:
%[1] D. F. Crouse, "An Overview of Major Terrestrial, Celestial, and
%    Temporal Coordinate Systems for Target Tracking," Formal Report, Naval
%    Research Laboratory, no. NRL/FR/5344--16-10,279, 10 Aug. 2016, 173
%    pages.
%
%October 2013 David F. Crouse, Naval Research Laboratory, Washington D.C.
%(UNCLASSIFIED) DISTRIBUTION STATEMENT A. Approved for public release.

[Jul1,Jul2]=GPS2TAI(Jul1,Jul2);
[Jul1,Jul2]=TAI2TCG(Jul1,Jul2);
end

%LICENSE:
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