translators.py
Translators to map the table column names in the input files into the required column names in our db. The flux/ang scale needs to be the multiplicative factor that converts the input flux into mJy and a/b into arcsec.
tr_aegean = {'prefix': 'IM', 'ra': 'ra', 'err_ra': 'er_ra', 'dec': 'dec', 'err_dec': 'err_dec', 'pos_err_ang_scale': 1, 'peak_flux': 'peak_flux', 'err_peak_flux': 'err_peak_flux', 'total_flux': 'int_flux', 'err_total_flux': 'err_int_flux', 'flux_scale': 1000.0, 'bmaj': 'a', 'bmin': 'b', 'ang_scale': 3600, 'pa': 'pa', 'freq': 999} module-attribute ¶
The translator dictionary for a Agean catalogue input. Not complete.
tr_gleam = {'prefix': 'MWA', 'ra': 'RAJ2000', 'err_ra': 'err_RAJ2000', 'dec': 'DEJ2000', 'err_dec': 'err_DEJ2000', 'pos_err_ang_scale': 1, 'peak_flux': 'peak_flux_wide', 'err_peak_flux': 'err_peak_flux_wide', 'total_flux': 'int_flux_wide', 'err_total_flux': 'err_int_flux_wide', 'flux_scale': 1000.0, 'bmaj': 'a_wide', 'bmin': 'b_wide', 'ang_scale': 1.0 / 3600, 'pa': 'pa_wide', 'freq': 200} module-attribute ¶
The translator dictionary for a GLEAM catalogue input. Not complete.
tr_mwacs = {'prefix': 'MWACS', 'ra': 'RAJ2000', 'err_ra': 'e_RAJ2000', 'dec': 'DEJ2000', 'err_dec': 'e_DEJ2000', 'pos_err_ang_scale': 1, 'peak_flux': 'S180', 'err_peak_flux': 'e_S180', 'total_flux': 'S180', 'err_total_flux': 'e_S180', 'flux_scale': 1000.0, 'bmaj': 'MajAxis', 'bmin': 'MinAxis', 'ang_scale': 60, 'pa': 'PABeam', 'freq': 180} module-attribute ¶
The translator dictionary for a MWACS catalogue input. Not complete.
tr_nvss = {'prefix': 'NVSS', 'ra': '_RAJ2000', 'err_ra': 'e_RAJ2000', 'dec': '_DEJ2000', 'err_dec': 'e_DEJ2000', 'pos_err_ang_scale': 1.0 / 3600, 'peak_flux': 'S1.4', 'err_peak_flux': 'e_S1.4', 'total_flux': 'S1.4', 'err_total_flux': 'e_S1.4', 'flux_scale': 1, 'bmaj': 'MajAxis', 'bmin': 'MinAxis', 'ang_scale': 1.0 / 3600, 'pa': 'PA', 'freq': 1400} module-attribute ¶
The translator dictionary for a NVSS catalogue input. Not complete.
tr_selavy = {'island_id': {'name': 'island_id', 'dtype': np.dtype(str)}, 'component_id': {'name': 'component_id', 'dtype': np.dtype(str)}, 'rms_image': {'name': 'local_rms', 'dtype': np.dtype(float)}, 'ra_deg_cont': {'name': 'ra', 'dtype': np.dtype(float)}, 'ra_err': {'name': 'ra_err', 'dtype': np.dtype(float)}, 'dec_deg_cont': {'name': 'dec', 'dtype': np.dtype(float)}, 'dec_err': {'name': 'dec_err', 'dtype': np.dtype(float)}, 'flux_peak': {'name': 'flux_peak', 'dtype': np.dtype(float)}, 'flux_peak_err': {'name': 'flux_peak_err', 'dtype': np.dtype(float)}, 'flux_int': {'name': 'flux_int', 'dtype': np.dtype(float)}, 'flux_int_err': {'name': 'flux_int_err', 'dtype': np.dtype(float)}, 'maj_axis': {'name': 'bmaj', 'dtype': np.dtype(float)}, 'maj_axis_err': {'name': 'err_bmaj', 'dtype': np.dtype(float)}, 'min_axis': {'name': 'bmin', 'dtype': np.dtype(float)}, 'min_axis_err': {'name': 'err_bmin', 'dtype': np.dtype(float)}, 'pos_ang': {'name': 'pa', 'dtype': np.dtype(float)}, 'pos_ang_err': {'name': 'err_pa', 'dtype': np.dtype(float)}, 'maj_axis_deconv': {'name': 'psf_bmaj', 'dtype': np.dtype(float)}, 'min_axis_deconv': {'name': 'psf_bmin', 'dtype': np.dtype(float)}, 'pos_ang_deconv': {'name': 'psf_pa', 'dtype': np.dtype(float)}, 'flag_c4': {'name': 'flag_c4', 'dtype': np.dtype(bool)}, 'chi_squared_fit': {'name': 'chi_squared_fit', 'dtype': np.dtype(float)}, 'spectral_index': {'name': 'spectral_index', 'dtype': np.dtype(float)}, 'spectral_index_from_TT': {'name': 'spectral_index_from_TT', 'dtype': np.dtype(bool)}, 'has_siblings': {'name': 'has_siblings', 'dtype': np.dtype(bool)}, 'rms_image': {'name': 'local_rms', 'dtype': np.dtype(float)}} module-attribute ¶
The translator dictionary for a Selavy catalogue input.
tr_sumss = {'prefix': 'SUMSS', 'ra': '_RAJ2000', 'err_ra': 'e_RAJ2000', 'dec': '_DEJ2000', 'err_dec': 'e_DEJ2000', 'pos_err_ang_scale': 1.0 / 3600, 'peak_flux': 'Sp', 'err_peak_flux': 'e_Sp', 'total_flux': 'St', 'err_total_flux': 'e_St', 'flux_scale': 1, 'bmaj': 'MajAxis', 'bmin': 'MinAxis', 'ang_scale': 1.0 / 3600, 'pa': 'PA', 'freq': 843} module-attribute ¶
The translator dictionary for a SUMSS catalogue input. Not complete.
translators = {'MWACS': tr_mwacs, 'AEGEAN': tr_aegean, 'GLEAM': tr_gleam, 'SUMSS': tr_sumss, 'NVSS': tr_nvss, 'SELAVY': tr_selavy, 'DEFAULT': tr_aegean} module-attribute ¶
Dictionary containing all the translators defined in this module.