def helioY(self,*args,**kwargs):
        """
        NAME:
           helioY
        PURPOSE:
           return Heliocentric Galactic rectangular y-coordinate (aka "Y")
        INPUT:
           t - (optional) time at which to get Y
           obs=[X,Y,Z] - (optional) position and velocity of observer 
                         (in kpc and km/s) (default=Object-wide default)
                         OR Orbit object that corresponds to the orbit
                         of the observer
                         Y is ignored and always assumed to be zero
           ro= distance in kpc corresponding to R=1. (default=Object-wide default)         
        OUTPUT:
           helioY(t) in kpc
        HISTORY:
           2011-02-24 - Written - Bovy (NYU)
        """
        _check_roSet(self,kwargs,'helioY')
        X, Y, Z= self._helioXYZ(*args,**kwargs)
        return Y
def helioY ( self , * args , ** kwargs ) : _check_roSet ( self , kwargs , 'helioY' ) X , Y , Z = self . _helioXYZ ( * args , ** kwargs ) return Y
NAME:
           helioY
        PURPOSE:
           return Heliocentric Galactic rectangular y-coordinate (aka "Y")
        INPUT:
           t - (optional) time at which to get Y
           obs=[X,Y,Z] - (optional) position and velocity of observer 
                         (in kpc and km/s) (default=Object-wide default)
                         OR Orbit object that corresponds to the orbit
                         of the observer
                         Y is ignored and always assumed to be zero
           ro= distance in kpc corresponding to R=1. (default=Object-wide default)         
        OUTPUT:
           helioY(t) in kpc
        HISTORY:
           2011-02-24 - Written - Bovy (NYU)