slaDtt -

SYNOPSYS

double slaDtt(utc)

PARAMETERS

double utc

DESCRIPTION


  Increment to be applied to Coordinated Universal Time UTC to give
  Terrestrial Time TT (formerly Ephemeris Time ET).

  (double precision)

Given

     utc    double    UTC date as a modified JD (JD-2400000.5)

  Result:  TT-UTC in seconds

  Pre 1972 January 1 a fixed value of 10 + ET-TAI is returned.

Called

 slaDat

  P.T.Wallace   Starlink   31 October 1993

SEE ALSO