Print a summary of a predicted position.

        The argument *ptup* is a tuple returned by :meth:`predict`. It is
        printed to :data:`sys.stdout` in a reasonable format that uses Unicode
        characters.

def print_prediction (self, ptup, precision=2):
        """Print a summary of a predicted position.

        The argument *ptup* is a tuple returned by :meth:`predict`. It is
        printed to :data:`sys.stdout` in a reasonable format that uses Unicode
        characters.

        """
        from . import ellipses
        bestra, bestdec, maj, min, pa = ptup

        f = ellipses.sigmascale (1)
        maj *= R2A
        min *= R2A
        pa *= R2D

        print_ ('position =', fmtradec (bestra, bestdec, precision=precision))
        print_ ('err(1σ)  = %.*f" × %.*f" @ %.0f°' % (precision, maj * f, precision,
                                                      min * f, pa))