Description:
Increment to be applied to
Coordinated Universal Time UTC to give Terrestrial Time TT (formerly Ephemeris Time ET)
Invocation
dtt = palDtt( double utc );
Arguments
utc = double (Given)
UTC date as a
modified JD (JD-2400000.5)
Returned Value
dtt = double
TT-UTC in seconds
Notes:
-
Consider a comprehensive upgrade to use the time transformations in SOFA’ s time cookbook:
http://www.iausofa.org/sofa_ts_c.pdf.
-
See eraDat for a description of error conditions when calling this function with a time outside of the
UTC range. This behaviour differs from slaDtt.
Copyright © 2012 Science and Technology Facilities Council.
Copyright © 2014 Cornell University.
Copyright © 2015 Tim Jenness