tcgtt¶

erfa.tcgtt(tcg1, tcg2)[source]¶

Time scale transformation: Geocentric Coordinate Time, TCG, to Terrestrial Time, TT.

Parameters:

tcg1double array
tcg2double array

Returns:

tt1double array
tt2double array

Notes

Wraps ERFA function eraTcgtt. The ERFA documentation is:

- - - - - - - - -
 e r a T c g t t
- - - - - - - - -

Time scale transformation:  Geocentric Coordinate Time, TCG, to
Terrestrial Time, TT.

Given:
   tcg1,tcg2  double    TCG as a 2-part Julian Date

Returned:
   tt1,tt2    double    TT as a 2-part Julian Date

Returned (function value):
              int       status:  0 = OK

Note:

   tcg1+tcg2 is Julian Date, apportioned in any convenient way
   between the two arguments, for example where tcg1 is the Julian
   Day Number and tcg22 is the fraction of a day.  The returned
   tt1,tt2 follow suit.

References:

   McCarthy, D. D., Petit, G. (eds.), IERS Conventions (2003),
   IERS Technical Note No. 32, BKG (2004)

   IAU 2000 Resolution B1.9

This revision:  2021 May 11

Copyright (C) 2013-2023, NumFOCUS Foundation.
Derived, with permission, from the SOFA library.  See notes at end of file.

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tcgtt¶