%N fuvgett0 %F $MIR/src/subs/fitsio.for
%D Get time offset for a UV FITS file.
%P rjs
%: fits
%B
      double precision function fuvGetT0(lu)

      integer lu
  ---------------------------------------------------------------------
  This returns the offset that needs to be added to the time to get
  correct Julian time.

  Input:
    lu         The handle of the input uv file.
  Output:
    fuvToff    Time offset.
