test

        df3.index = range(len(df3))

        # np.save('umag.npy', df3['umag'] )

        self.star=df3

        del df0,df2,df3

        del da,df2,df3

        self.information['ra_obj']  = self.star['ra_gaia'].mean() 

        self.information['dec_obj'] = self.star['dec_gaia'].mean()