def bb(self,*args,**kwargs):
        """
        NAME:
           bb
        PURPOSE:
           return Galactic latitude
        INPUT:
           t - (optional) time at which to get bb
           obs=[X,Y,Z] - (optional) position of observer (in kpc) 
                         (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:
           b(t)
        HISTORY:
           2011-02-23 - Written - Bovy (NYU)
        """
        _check_roSet(self,kwargs,'bb')
        lbd= self._lbd(*args,**kwargs)
        return lbd[:,1]
def bb ( self , * args , ** kwargs ) : _check_roSet ( self , kwargs , 'bb' ) lbd = self . _lbd ( * args , ** kwargs ) return lbd [ : , 1 ]
NAME:
           bb
        PURPOSE:
           return Galactic latitude
        INPUT:
           t - (optional) time at which to get bb
           obs=[X,Y,Z] - (optional) position of observer (in kpc) 
                         (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:
           b(t)
        HISTORY:
           2011-02-23 - Written - Bovy (NYU)