def standardize_table(cls, table):
        '''
        Extract objects from a Gaia DR2 table.
        '''

        print(cls)
        identifiers = {n+'-id':table[n] for n in cls.identifier_keys}

        # create skycoord objects
        N = len(table)
        coordinates = dict(  ra=table['_RAJ2000'].data.data*u.deg,
                             dec=table['_DEJ2000'].data.data*u.deg,
                             pm_ra_cosdec=table['pmRA'].data.data*u.arcsec/u.year,
                             pm_dec=table['pmDE'].data.data*u.arcsec/u.year,
                             radial_velocity=np.nan*np.ones(N)*u.km/u.s,
                             distance=np.nan*np.ones(N)*u.pc,#distance=1000*u.pc/table['parallax'].data, # weirdly, messed with RA + Dec signs if parallax is zero
                             obstime=cls.epoch*np.ones(N)*u.year)#Time(, format='decimalyear'))
        for k in coordinates:
            print(k, coordinates[k])
        magnitudes = {f+'-mag':table[f+'mag'].data for f in cls.filters}

        standardized = hstack([Table(identifiers),
                               Table(coordinates),
                               Table(magnitudes)])
        standardized.meta['catalog'] = 'Gaia'

        return standardized
def standardize_table ( cls , table ) : print ( cls ) identifiers = { n + '-id' : table [ n ] for n in cls . identifier_keys } N = len ( table ) coordinates = dict ( ra = table [ '_RAJ2000' ] . data . data * u . deg , dec = table [ '_DEJ2000' ] . data . data * u . deg , pm_ra_cosdec = table [ 'pmRA' ] . data . data * u . arcsec / u . year , pm_dec = table [ 'pmDE' ] . data . data * u . arcsec / u . year , radial_velocity = np . nan * np . ones ( N ) * u . km / u . s , distance = np . nan * np . ones ( N ) * u . pc , obstime = cls . epoch * np . ones ( N ) * u . year ) for k in coordinates : print ( k , coordinates [ k ] ) magnitudes = { f + '-mag' : table [ f + 'mag' ] . data for f in cls . filters } standardized = hstack ( [ Table ( identifiers ) , Table ( coordinates ) , Table ( magnitudes ) ] ) standardized . meta [ 'catalog' ] = 'Gaia' return standardized
Extract objects from a Gaia DR2 table.