Introduction to Euclid Q1 MER catalog#
Learning Goals#
By the end of this tutorial, you will:
Understand the basic characteristics of Euclid Q1 MER catalogs.
What columns are available in the MER catalog.
How to query with ADQL in the MER catalog.
How to make a simple color-magnitude diagram with the data.
Introduction#
Euclid is a European Space Agency (ESA) space mission with NASA participation, to study the geometry and nature of the dark Universe. The Quick Data Release 1 (Q1) are the first data release from the Euclid mission after the Early Release Observations (ERO). On March 19, 2025 the data will be available on the ESA archive and on the IRSA archive.
These Q1 notebooks focus on how to access, download, and process Euclid Q1 data from the IRSA archive. If you have any issues accessing data from the archives, please contact the helpdesk directly: IRSA helpdesk and ESA Euclid Helpdesk.
Each entry in the MER catalog is a single source containing all its photometry from the MER Mosaics (VIS, Y, J, H and any accompanying external ground observations) along with other basic measurements, like size and shape.
This notebook provides an introduction to the MER catalog released as part of Euclid Q1. Other Euclid notebooks show how to use other data products released as part of Euclid Q1.
Imports#
# Uncomment the next line to install dependencies if needed
# !pip install numpy matplotlib pyvo
import numpy as np
import matplotlib.pyplot as plt
import pyvo as vo
1. Download MER catalog from IRSA directly to this notebook#
service = vo.dal.TAPService("https://irsa.ipac.caltech.edu/TAP")
tables = service.tables
for tablename in tables.keys():
if "tap_schema" not in tablename and "euclid_q1" in tablename:
tables[tablename].describe()
euclid.artifact_euclid_q1
Euclid Q1 CAOM Artifact Table
euclid.observation_euclid_q1
Euclid Q1 CAOM Observation Table
euclid.plane_euclid_q1
Euclid Q1 CAOM Plane Table
euclid_q1_mer_catalogue
Euclid Q1 MER Catalog
euclid_q1_mer_morphology
Euclid Q1 MER Morphology
euclid_q1_phz_photo_z
Euclid Q1 PHZ Photo-z Catalog
euclid_q1_spe_lines_atomic_indices
Euclid Q1 SPE Lines Catalog - Atomic Indices
euclid_q1_spe_lines_continuum_features
Euclid Q1 SPE Lines Catalog - Continuum Features
euclid_q1_spe_lines_line_features
Euclid Q1 SPE Lines Catalog - Spectral Lines
euclid_q1_spe_lines_molecular_indices
Euclid Q1 SPE Lines Catalog - Molecular Indices
euclid_q1_spectro_zcatalog_spe_classification
Euclid Q1 SPE Redshift Catalog - Classification
euclid_q1_spectro_zcatalog_spe_galaxy_candidates
Euclid Q1 SPE Redshift Catalog - Galaxy Candidates
euclid_q1_spectro_zcatalog_spe_qso_candidates
Euclid Q1 SPE Redshift Catalog - QSO Candidates
euclid_q1_spectro_zcatalog_spe_quality
Euclid Q1 SPE Redshift Catalog - Quality
euclid_q1_spectro_zcatalog_spe_star_candidates
Euclid Q1 SPE Redshift Catalog - Star Candidates
Choose the Euclid MER table#
table_mer = 'euclid_q1_mer_catalogue'
Learn some information about the table:#
How many columns are there?
List the column names
columns = tables[table_mer].columns
print(len(columns))
476
for col in columns:
print(f'{f"{col.name}":30s} {col.unit} {col.description}')
object_id NA Euclid unique source identifier
ra deg Source barycenter RA coordinate (SExtractor ALPHA_J2000) decimal degrees
dec deg Source barycenter DEC coordinate (SExtractor DELTA_J2000) decimal degrees
right_ascension_psf_fitting deg Source RA coordinate derived by the PSF-fitting photometry method
declination_psf_fitting deg Source DEC coordinate derived by the PSF-fitting photometry method
segmentation_map_id NA Source ID in the associated segmentation map
vis_det NA Flag to indicate if the source is detected in the VIS mosaic (1) or is only detected in the NIR mosaic (0)
flux_vis_1fwhm_aper uJy VIS band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_vis_2fwhm_aper uJy VIS band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_vis_3fwhm_aper uJy VIS band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_vis_4fwhm_aper uJy VIS band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_y_1fwhm_aper uJy NIR Y band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_y_2fwhm_aper uJy NIR Y band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_y_3fwhm_aper uJy NIR Y band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_y_4fwhm_aper uJy NIR Y band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_j_1fwhm_aper uJy NIR J band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_j_2fwhm_aper uJy NIR J band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_j_3fwhm_aper uJy NIR J band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_j_4fwhm_aper uJy NIR J band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_h_1fwhm_aper uJy NIR H band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_h_2fwhm_aper uJy NIR H band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_h_3fwhm_aper uJy NIR H band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_h_4fwhm_aper uJy NIR H band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_nir_stack_1fwhm_aper uJy NIR stack band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_nir_stack_2fwhm_aper uJy NIR stack band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_nir_stack_3fwhm_aper uJy NIR stack band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_nir_stack_4fwhm_aper uJy NIR stack band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_u_ext_decam_1fwhm_aper uJy Uext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_u_ext_decam_2fwhm_aper uJy Uext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_u_ext_decam_3fwhm_aper uJy Uext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_u_ext_decam_4fwhm_aper uJy Uext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_g_ext_decam_1fwhm_aper uJy Gext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_g_ext_decam_2fwhm_aper uJy Gext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_g_ext_decam_3fwhm_aper uJy Gext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_g_ext_decam_4fwhm_aper uJy Gext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_r_ext_decam_1fwhm_aper uJy Rext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_r_ext_decam_2fwhm_aper uJy Rext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_r_ext_decam_3fwhm_aper uJy Rext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_r_ext_decam_4fwhm_aper uJy Rext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_i_ext_decam_1fwhm_aper uJy Iext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_i_ext_decam_2fwhm_aper uJy Iext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_i_ext_decam_3fwhm_aper uJy Iext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_i_ext_decam_4fwhm_aper uJy Iext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_z_ext_decam_1fwhm_aper uJy Zext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_z_ext_decam_2fwhm_aper uJy Zext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_z_ext_decam_3fwhm_aper uJy Zext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_z_ext_decam_4fwhm_aper uJy Zext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_u_ext_lsst_1fwhm_aper uJy Uext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_u_ext_lsst_2fwhm_aper uJy Uext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_u_ext_lsst_3fwhm_aper uJy Uext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_u_ext_lsst_4fwhm_aper uJy Uext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_g_ext_lsst_1fwhm_aper uJy Gext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_g_ext_lsst_2fwhm_aper uJy Gext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_g_ext_lsst_3fwhm_aper uJy Gext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_g_ext_lsst_4fwhm_aper uJy Gext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_r_ext_lsst_1fwhm_aper uJy Rext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_r_ext_lsst_2fwhm_aper uJy Rext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_r_ext_lsst_3fwhm_aper uJy Rext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_r_ext_lsst_4fwhm_aper uJy Rext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_i_ext_lsst_1fwhm_aper uJy Iext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_i_ext_lsst_2fwhm_aper uJy Iext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_i_ext_lsst_3fwhm_aper uJy Iext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_i_ext_lsst_4fwhm_aper uJy Iext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_z_ext_lsst_1fwhm_aper uJy Zext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_z_ext_lsst_2fwhm_aper uJy Zext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_z_ext_lsst_3fwhm_aper uJy Zext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_z_ext_lsst_4fwhm_aper uJy Zext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_u_ext_megacam_1fwhm_aper uJy Uext Megacam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_u_ext_megacam_2fwhm_aper uJy Uext Megacam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_u_ext_megacam_3fwhm_aper uJy Uext Megacam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_u_ext_megacam_4fwhm_aper uJy Uext Megacam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_r_ext_megacam_1fwhm_aper uJy Rext Megacam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_r_ext_megacam_2fwhm_aper uJy Rext Megacam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_r_ext_megacam_3fwhm_aper uJy Rext Megacam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_r_ext_megacam_4fwhm_aper uJy Rext Megacam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_g_ext_jpcam_1fwhm_aper uJy Gext JPCAM band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_g_ext_jpcam_2fwhm_aper uJy Gext JPCAM band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_g_ext_jpcam_3fwhm_aper uJy Gext JPCAM band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_g_ext_jpcam_4fwhm_aper uJy Gext JPCAM band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_i_ext_panstarrs_1fwhm_aper uJy Iext PS band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_i_ext_panstarrs_2fwhm_aper uJy Iext PS band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_i_ext_panstarrs_3fwhm_aper uJy Iext PS band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_i_ext_panstarrs_4fwhm_aper uJy Iext PS band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_z_ext_panstarrs_1fwhm_aper uJy Zext PS band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_z_ext_panstarrs_2fwhm_aper uJy Zext PS band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_z_ext_panstarrs_3fwhm_aper uJy Zext PS band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_z_ext_panstarrs_4fwhm_aper uJy Zext PS band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_g_ext_hsc_1fwhm_aper uJy Gext HSC band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_g_ext_hsc_2fwhm_aper uJy Gext HSC band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_g_ext_hsc_3fwhm_aper uJy Gext HSC band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_g_ext_hsc_4fwhm_aper uJy Gext HSC band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
flux_z_ext_hsc_1fwhm_aper uJy Zext HSC band source aperture photometry flux (1 FWHM diameter) on PSF-matched images
flux_z_ext_hsc_2fwhm_aper uJy Zext HSC band source aperture photometry flux (2 FWHM diameter) on PSF-matched images
flux_z_ext_hsc_3fwhm_aper uJy Zext HSC band source aperture photometry flux (3 FWHM diameter) on PSF-matched images
flux_z_ext_hsc_4fwhm_aper uJy Zext HSC band source aperture photometry flux (4 FWHM diameter) on PSF-matched images
fluxerr_vis_1fwhm_aper uJy VIS band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_vis_2fwhm_aper uJy VIS band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_vis_3fwhm_aper uJy VIS band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_vis_4fwhm_aper uJy VIS band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_y_1fwhm_aper uJy NIR Y band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_y_2fwhm_aper uJy NIR Y band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_y_3fwhm_aper uJy NIR Y band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_y_4fwhm_aper uJy NIR Y band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_j_1fwhm_aper uJy NIR J band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_j_2fwhm_aper uJy NIR J band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_j_3fwhm_aper uJy NIR J band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_j_4fwhm_aper uJy NIR J band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_h_1fwhm_aper uJy NIR H band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_h_2fwhm_aper uJy NIR H band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_h_3fwhm_aper uJy NIR H band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_h_4fwhm_aper uJy NIR H band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_nir_stack_1fwhm_aper uJy NIR stack band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_nir_stack_2fwhm_aper uJy NIR stack band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_nir_stack_3fwhm_aper uJy NIR stack band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_nir_stack_4fwhm_aper uJy NIR stack band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_decam_1fwhm_aper uJy Uext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_decam_2fwhm_aper uJy Uext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_decam_3fwhm_aper uJy Uext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_decam_4fwhm_aper uJy Uext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_decam_1fwhm_aper uJy Gext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_decam_2fwhm_aper uJy Gext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_decam_3fwhm_aper uJy Gext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_decam_4fwhm_aper uJy Gext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_decam_1fwhm_aper uJy Rext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_decam_2fwhm_aper uJy Rext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_decam_3fwhm_aper uJy Rext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_decam_4fwhm_aper uJy Rext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_decam_1fwhm_aper uJy Iext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_decam_2fwhm_aper uJy Iext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_decam_3fwhm_aper uJy Iext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_decam_4fwhm_aper uJy Iext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_decam_1fwhm_aper uJy Zext DECam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_decam_2fwhm_aper uJy Zext DECam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_decam_3fwhm_aper uJy Zext DECam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_decam_4fwhm_aper uJy Zext DECam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_lsst_1fwhm_aper uJy Uext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_lsst_2fwhm_aper uJy Uext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_lsst_3fwhm_aper uJy Uext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_lsst_4fwhm_aper uJy Uext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_lsst_1fwhm_aper uJy Gext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_lsst_2fwhm_aper uJy Gext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_lsst_3fwhm_aper uJy Gext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_lsst_4fwhm_aper uJy Gext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_lsst_1fwhm_aper uJy Rext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_lsst_2fwhm_aper uJy Rext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_lsst_3fwhm_aper uJy Rext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_lsst_4fwhm_aper uJy Rext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_lsst_1fwhm_aper uJy Iext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_lsst_2fwhm_aper uJy Iext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_lsst_3fwhm_aper uJy Iext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_lsst_4fwhm_aper uJy Iext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_lsst_1fwhm_aper uJy Zext LSST band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_lsst_2fwhm_aper uJy Zext LSST band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_lsst_3fwhm_aper uJy Zext LSST band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_lsst_4fwhm_aper uJy Zext LSST band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_megacam_1fwhm_aper uJy Uext Megacam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_megacam_2fwhm_aper uJy Uext Megacam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_megacam_3fwhm_aper uJy Uext Megacam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_u_ext_megacam_4fwhm_aper uJy Uext Megacam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_megacam_1fwhm_aper uJy Rext Megacam band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_megacam_2fwhm_aper uJy Rext Megacam band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_megacam_3fwhm_aper uJy Rext Megacam band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_r_ext_megacam_4fwhm_aper uJy Rext Megacam band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_jpcam_1fwhm_aper uJy Gext JPCAM band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_jpcam_2fwhm_aper uJy Gext JPCAM band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_jpcam_3fwhm_aper uJy Gext JPCAM band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_jpcam_4fwhm_aper uJy Gext JPCAM band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_panstarrs_1fwhm_aper uJy Iext PS band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_panstarrs_2fwhm_aper uJy Iext PS band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_panstarrs_3fwhm_aper uJy Iext PS band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_i_ext_panstarrs_4fwhm_aper uJy Iext PS band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_panstarrs_1fwhm_aper uJy Zext PS band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_panstarrs_2fwhm_aper uJy Zext PS band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_panstarrs_3fwhm_aper uJy Zext PS band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_panstarrs_4fwhm_aper uJy Zext PS band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_hsc_1fwhm_aper uJy Gext HSC band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_hsc_2fwhm_aper uJy Gext HSC band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_hsc_3fwhm_aper uJy Gext HSC band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_g_ext_hsc_4fwhm_aper uJy Gext HSC band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_hsc_1fwhm_aper uJy Zext HSC band source aperture photometry flux (1 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_hsc_2fwhm_aper uJy Zext HSC band source aperture photometry flux (2 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_hsc_3fwhm_aper uJy Zext HSC band source aperture photometry flux (3 FWHM diameter) on PSF-matched images error
fluxerr_z_ext_hsc_4fwhm_aper uJy Zext HSC band source aperture photometry flux (4 FWHM diameter) on PSF-matched images error
flux_y_templfit uJy NIR Y band source template fitting flux (TPHOT measurement)
flux_j_templfit uJy NIR J band source template fitting flux (TPHOT measurement)
flux_h_templfit uJy NIR H band source template fitting flux (TPHOT measurement)
flux_u_ext_decam_templfit uJy Uext DECam band source template fitting flux (TPHOT measurement)
flux_g_ext_decam_templfit uJy Gext DECam band source template fitting flux (TPHOT measurement)
flux_r_ext_decam_templfit uJy Rext DECam band source template fitting flux (TPHOT measurement)
flux_i_ext_decam_templfit uJy Iext DECam band source template fitting flux (TPHOT measurement)
flux_z_ext_decam_templfit uJy Zext DECam band source template fitting flux (TPHOT measurement)
flux_u_ext_lsst_templfit uJy Uext LSST band source template fitting flux (TPHOT measurement)
flux_g_ext_lsst_templfit uJy Gext LSST band source template fitting flux (TPHOT measurement)
flux_r_ext_lsst_templfit uJy Rext LSST band source template fitting flux (TPHOT measurement)
flux_i_ext_lsst_templfit uJy Iext LSST band source template fitting flux (TPHOT measurement)
flux_z_ext_lsst_templfit uJy Zext LSST band source template fitting flux (TPHOT measurement)
flux_u_ext_megacam_templfit uJy Uext Megacam band source template fitting flux (TPHOT measurement)
flux_r_ext_megacam_templfit uJy Rext Megacam band source template fitting flux (TPHOT measurement)
flux_g_ext_jpcam_templfit uJy Gext JPCAM band source template fitting flux (TPHOT measurement)
flux_i_ext_panstarrs_templfit uJy Iext PS band source template fitting flux (TPHOT measurement)
flux_z_ext_panstarrs_templfit uJy Zext PS band source template fitting flux (TPHOT measurement)
flux_g_ext_hsc_templfit uJy Gext HSC band source template fitting flux (TPHOT measurement)
flux_z_ext_hsc_templfit uJy Zext HSC band source template fitting flux (TPHOT measurement)
fluxerr_y_templfit uJy NIR Y band source template fitting flux error (TPHOT measurement)
fluxerr_j_templfit uJy NIR J band source template fitting flux error (TPHOT measurement)
fluxerr_h_templfit uJy NIR H band source template fitting flux error (TPHOT measurement)
fluxerr_u_ext_decam_templfit uJy Uext DECam band source template fitting flux error (TPHOT measurement)
fluxerr_g_ext_decam_templfit uJy Gext DECam band source template fitting flux error (TPHOT measurement)
fluxerr_r_ext_decam_templfit uJy Rext DECam band source template fitting flux error (TPHOT measurement)
fluxerr_i_ext_decam_templfit uJy Iext DECam band source template fitting flux error (TPHOT measurement)
fluxerr_z_ext_decam_templfit uJy Zext DECam band source template fitting flux error (TPHOT measurement)
fluxerr_u_ext_lsst_templfit uJy Uext LSST band source template fitting flux error (TPHOT measurement)
fluxerr_g_ext_lsst_templfit uJy Gext LSST band source template fitting flux error (TPHOT measurement)
fluxerr_r_ext_lsst_templfit uJy Rext LSST band source template fitting flux error (TPHOT measurement)
fluxerr_i_ext_lsst_templfit uJy Iext LSST band source template fitting flux error (TPHOT measurement)
fluxerr_z_ext_lsst_templfit uJy Zext LSST band source template fitting flux error (TPHOT measurement)
fluxerr_u_ext_megacam_templfit uJy Uext Megacam band source template fitting flux error (TPHOT measurement)
fluxerr_r_ext_megacam_templfit uJy Rext Megacam band source template fitting flux error (TPHOT measurement)
fluxerr_g_ext_jpcam_templfit uJy Gext JPCAM band source template fitting flux error (TPHOT measurement)
fluxerr_i_ext_panstarrs_templfit uJy Iext PS band source template fitting flux error (TPHOT measurement)
fluxerr_z_ext_panstarrs_templfit uJy Zext PS band source template fitting flux error (TPHOT measurement)
fluxerr_g_ext_hsc_templfit uJy Gext HSC band source template fitting flux error (TPHOT measurement)
fluxerr_z_ext_hsc_templfit uJy Zext HSC band source template fitting flux error (TPHOT measurement)
flux_vis_to_y_templfit uJy VIS band source flux on a VIS image PSF-matched to NIR Y band (TPHOT measurement)
flux_vis_to_j_templfit uJy VIS band source flux on a VIS image PSF-matched to NIR J band (TPHOT measurement)
flux_vis_to_h_templfit uJy VIS band source flux on a VIS image PSF-matched to NIR H band (TPHOT measurement)
flux_vis_to_u_ext_decam_templfit uJy VIS band source flux on a VIS image PSF-matched to Uext DECam band (TPHOT measurement)
flux_vis_to_g_ext_decam_templfit uJy VIS band source flux on a VIS image PSF-matched to Gext DECam band (TPHOT measurement)
flux_vis_to_r_ext_decam_templfit uJy VIS band source flux on a VIS image PSF-matched to Rext DECam band (TPHOT measurement)
flux_vis_to_i_ext_decam_templfit uJy VIS band source flux on a VIS image PSF-matched to Iext DECam band (TPHOT measurement)
flux_vis_to_z_ext_decam_templfit uJy VIS band source flux on a VIS image PSF-matched to Zext DECam band (TPHOT measurement)
flux_vis_to_u_ext_lsst_templfit uJy VIS band source flux on a VIS image PSF-matched to Uext LSST band (TPHOT measurement)
flux_vis_to_g_ext_lsst_templfit uJy VIS band source flux on a VIS image PSF-matched to Gext LSST band (TPHOT measurement)
flux_vis_to_r_ext_lsst_templfit uJy VIS band source flux on a VIS image PSF-matched to Rext LSST band (TPHOT measurement)
flux_vis_to_i_ext_lsst_templfit uJy VIS band source flux on a VIS image PSF-matched to Iext LSST band (TPHOT measurement)
flux_vis_to_z_ext_lsst_templfit uJy VIS band source flux on a VIS image PSF-matched to Zext LSST band (TPHOT measurement)
flux_vis_to_u_ext_megacam_templfit uJy VIS band source flux on a VIS image PSF-matched to Uext Megacam band (TPHOT measurement)
flux_vis_to_r_ext_megacam_templfit uJy VIS band source flux on a VIS image PSF-matched to Rext Megacam band (TPHOT measurement)
flux_vis_to_g_ext_jpcam_templfit uJy VIS band source flux on a VIS image PSF-matched to Gext JPCAM band (TPHOT measurement)
flux_vis_to_i_ext_panstarrs_templfit uJy VIS band source flux on a VIS image PSF-matched to Iext PS band (TPHOT measurement)
flux_vis_to_z_ext_panstarrs_templfit uJy VIS band source flux on a VIS image PSF-matched to Zext PS band (TPHOT measurement)
flux_vis_to_g_ext_hsc_templfit uJy VIS band source flux on a VIS image PSF-matched to Gext HSC band (TPHOT measurement)
flux_vis_to_z_ext_hsc_templfit uJy VIS band source flux on a VIS image PSF-matched to Zext HSC band (TPHOT measurement)
fluxerr_vis_to_y_templfit uJy VIS band source flux error on a VIS image PSF-matched to NIR Y band (TPHOT measurement)
fluxerr_vis_to_j_templfit uJy VIS band source flux error on a VIS image PSF-matched to NIR J bandr (TPHOT measurement)
fluxerr_vis_to_h_templfit uJy VIS band source flux error on a VIS image PSF-matched to NIR H band (TPHOT measurement)
fluxerr_vis_to_u_ext_decam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Uext DECam band (TPHOT measurement)
fluxerr_vis_to_g_ext_decam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Gext DECam band (TPHOT measurement)
fluxerr_vis_to_r_ext_decam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Rext DECam band (TPHOT measurement)
fluxerr_vis_to_i_ext_decam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Iext DECam band (TPHOT measurement)
fluxerr_vis_to_z_ext_decam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Zext DECam band (TPHOT measurement)
fluxerr_vis_to_u_ext_lsst_templfit uJy VIS band source flux error on a VIS image PSF-matched to Uext LSST band (TPHOT measurement)
fluxerr_vis_to_g_ext_lsst_templfit uJy VIS band source flux error on a VIS image PSF-matched to Gext LSST band (TPHOT measurement)
fluxerr_vis_to_r_ext_lsst_templfit uJy VIS band source flux error on a VIS image PSF-matched to Rext LSST band (TPHOT measurement)
fluxerr_vis_to_i_ext_lsst_templfit uJy VIS band source flux error on a VIS image PSF-matched to Iext LSST band (TPHOT measurement)
fluxerr_vis_to_z_ext_lsst_templfit uJy VIS band source flux error on a VIS image PSF-matched to Zext LSST band (TPHOT measurement)
fluxerr_vis_to_u_ext_megacam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Uext Megacam band (TPHOT measurement)
fluxerr_vis_to_r_ext_megacam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Rext Megacam band (TPHOT measurement)
fluxerr_vis_to_g_ext_jpcam_templfit uJy VIS band source flux error on a VIS image PSF-matched to Gext JPCAM band (TPHOT measurement)
fluxerr_vis_to_i_ext_panstarrs_templfit uJy VIS band source flux error on a VIS image PSF-matched to Iext PS band (TPHOT measurement)
fluxerr_vis_to_z_ext_panstarrs_templfit uJy VIS band source flux error on a VIS image PSF-matched to Zext PS band (TPHOT measurement)
fluxerr_vis_to_g_ext_hsc_templfit uJy VIS band source flux error on a VIS image PSF-matched to Gext HSC band (TPHOT measurement)
fluxerr_vis_to_z_ext_hsc_templfit uJy VIS band source flux error on a VIS image PSF-matched to Zext HSC band (TPHOT measurement)
flux_vis_psf uJy VIS band source PSF-fitting photometry flux (TPHOT measurement)
fluxerr_vis_psf uJy VIS band source PSF-fitting photometry flux error (TPHOT measurement)
flux_segmentation uJy VIS or NIR stack band source segmented area flux
fluxerr_segmentation uJy VIS or NIR stack band source total flux (Kron aperture)
flux_detection_total uJy VIS or NIR stack band source total flux error (Kron aperture)
fluxerr_detection_total uJy VIS or NIR stack band source segmented area flux
flux_vis_sersic uJy VIS band source flux from the Sersic fit
flux_y_sersic uJy NIR Y band source flux from the Sersic fit
flux_j_sersic uJy NIR J band source flux from the Sersic fit
flux_h_sersic uJy NIR H band source flux from the Sersic fit
flux_u_ext_decam_sersic uJy Uext DECam band source flux from the Sersic fit
flux_g_ext_decam_sersic uJy Gext DECam band source flux from the Sersic fit
flux_r_ext_decam_sersic uJy Rext DECam band source flux from the Sersic fit
flux_i_ext_decam_sersic uJy Iext DECam band source flux from the Sersic fit
flux_z_ext_decam_sersic uJy Zext DECam band source flux from the Sersic fit
flux_u_ext_lsst_sersic uJy Uext LSST band source flux from the Sersic fit
flux_g_ext_lsst_sersic uJy Gext LSST band source flux from the Sersic fit
flux_r_ext_lsst_sersic uJy Rext LSST band source flux from the Sersic fit
flux_i_ext_lsst_sersic uJy Iext LSST band source flux from the Sersic fit
flux_z_ext_lsst_sersic uJy Zext LSST band source flux from the Sersic fit
flux_u_ext_megacam_sersic uJy Uext Megacam band source flux from the Sersic fit
flux_r_ext_megacam_sersic uJy Rext Megacam band source flux from the Sersic fit
flux_g_ext_jpcam_sersic uJy Gext JPCAM band source flux from the Sersic fit
flux_i_ext_panstarrs_sersic uJy Iext PS band source flux from the Sersic fit
flux_z_ext_panstarrs_sersic uJy Zext PS band source flux from the Sersic fit
flux_g_ext_hsc_sersic uJy Gext HSC band source flux from the Sersic fit
flux_z_ext_hsc_sersic uJy Zext HSC band source flux from the Sersic fit
fluxerr_vis_sersic uJy VIS band source flux error from the Sersic fit
fluxerr_y_sersic uJy NIR Y band source flux error from the Sersic fit
fluxerr_j_sersic uJy NIR J band source flux error from the Sersic fit
fluxerr_h_sersic uJy NIR H band source flux error from the Sersic fit
fluxerr_u_ext_decam_sersic uJy Uext DECam band source flux error from the Sersic fit
fluxerr_g_ext_decam_sersic uJy Gext DECam band source flux error from the Sersic fit
fluxerr_r_ext_decam_sersic uJy Rext DECam band source flux error from the Sersic fit
fluxerr_i_ext_decam_sersic uJy Iext DECam band source flux error from the Sersic fit
fluxerr_z_ext_decam_sersic uJy Zext DECam band source flux error from the Sersic fit
fluxerr_u_ext_lsst_sersic uJy Uext LSST band source flux error from the Sersic fit
fluxerr_g_ext_lsst_sersic uJy Gext LSST band source flux error from the Sersic fit
fluxerr_r_ext_lsst_sersic uJy Rext LSST band source flux error from the Sersic fit
fluxerr_i_ext_lsst_sersic uJy Iext LSST band source flux error from the Sersic fit
fluxerr_z_ext_lsst_sersic uJy Zext LSST band source flux error from the Sersic fit
fluxerr_u_ext_megacam_sersic uJy Uext Megacam band source flux error from the Sersic fit
fluxerr_r_ext_megacam_sersic uJy Rext Megacam band source flux error from the Sersic fit
fluxerr_g_ext_jpcam_sersic uJy Gext JPCAM band source flux error from the Sersic fit
fluxerr_i_ext_panstarrs_sersic uJy Iext PS band source flux error from the Sersic fit
fluxerr_z_ext_panstarrs_sersic uJy Zext PS band source flux error from the Sersic fit
fluxerr_g_ext_hsc_sersic uJy Gext HSC band source flux error from the Sersic fit
fluxerr_z_ext_hsc_sersic uJy Zext HSC band source flux error from the Sersic fit
flux_vis_disk_sersic uJy VIS band source flux from the Disk+Sersic fit
flux_y_disk_sersic uJy NIR Y band source flux from the Disk+Sersic fit
flux_j_disk_sersic uJy NIR J band source flux from the Disk+Sersic fit
flux_h_disk_sersic uJy NIR H band source flux from the Disk+Sersic fit
flux_u_ext_decam_disk_sersic uJy Uext DECam band source flux from the Disk+Sersic fit
flux_g_ext_decam_disk_sersic uJy Gext DECam band source flux from the Disk+Sersic fit
flux_r_ext_decam_disk_sersic uJy Rext DECam band source flux from the Disk+Sersic fit
flux_i_ext_decam_disk_sersic uJy Iext DECam band source flux from the Disk+Sersic fit
flux_z_ext_decam_disk_sersic uJy Zext DECam band source flux from the Disk+Sersic fit
flux_u_ext_lsst_disk_sersic uJy Uext LSST band source flux from the Disk+Sersic fit
flux_g_ext_lsst_disk_sersic uJy Gext LSST band source flux from the Disk+Sersic fit
flux_r_ext_lsst_disk_sersic uJy Rext LSST band source flux from the Disk+Sersic fit
flux_i_ext_lsst_disk_sersic uJy Iext LSST band source flux from the Disk+Sersic fit
flux_z_ext_lsst_disk_sersic uJy Zext LSST band source flux from the Disk+Sersic fit
flux_u_ext_megacam_disk_sersic uJy Uext Megacam band source flux from the Disk+Sersic fit
flux_r_ext_megacam_disk_sersic uJy Rext Megacam band source flux from the Disk+Sersic fit
flux_g_ext_jpcam_disk_sersic uJy Gext JPCAM band source flux from the Disk+Sersic fit
flux_i_ext_panstarrs_disk_sersic uJy Iext PS band source flux from the Disk+Sersic fit
flux_z_ext_panstarrs_disk_sersic uJy Zext PS band source flux from the Disk+Sersic fit
flux_g_ext_hsc_disk_sersic uJy Gext HSC band source flux from the Disk+Sersic fit
flux_z_ext_hsc_disk_sersic uJy Zext HSC band source flux from the Disk+Sersic fit
fluxerr_vis_disk_sersic uJy VIS band source flux error from the Disk+Sersic fit
fluxerr_y_disk_sersic uJy NIR Y band source flux error from the Disk+Sersic fit
fluxerr_j_disk_sersic uJy NIR J band source flux error from the Disk+Sersic fit
fluxerr_h_disk_sersic uJy NIR H band source flux error from the Disk+Sersic fit
fluxerr_u_ext_decam_disk_sersic uJy Uext DECam band source flux error from the Disk+Sersic fit
fluxerr_g_ext_decam_disk_sersic uJy Gext DECam band source flux error from the Disk+Sersic fit
fluxerr_r_ext_decam_disk_sersic uJy Rext DECam band source flux error from the Disk+Sersic fit
fluxerr_i_ext_decam_disk_sersic uJy Iext DECam band source flux error from the Disk+Sersic fit
fluxerr_z_ext_decam_disk_sersic uJy Zext DECam band source flux error from the Disk+Sersic fit
fluxerr_u_ext_lsst_disk_sersic uJy Uext LSST band source flux error from the Disk+Sersic fit
fluxerr_g_ext_lsst_disk_sersic uJy Gext LSST band source flux error from the Disk+Sersic fit
fluxerr_r_ext_lsst_disk_sersic uJy Rext LSST band source flux error from the Disk+Sersic fit
fluxerr_i_ext_lsst_disk_sersic uJy Iext LSST band source flux error from the Disk+Sersic fit
fluxerr_z_ext_lsst_disk_sersic uJy Zext LSST band source flux error from the Disk+Sersic fit
fluxerr_u_ext_megacam_disk_sersic uJy Uext Megacam band source flux error from the Disk+Sersic fit
fluxerr_r_ext_megacam_disk_sersic uJy Rext Megacam band source flux error from the Disk+Sersic fit
fluxerr_g_ext_jpcam_disk_sersic uJy Gext JPCAM band source flux error from the Disk+Sersic fit
fluxerr_i_ext_panstarrs_disk_sersic uJy Iext PS band source flux error from the Disk+Sersic fit
fluxerr_z_ext_panstarrs_disk_sersic uJy Zext PS band source flux error from the Disk+Sersic fit
fluxerr_g_ext_hsc_disk_sersic uJy Gext HSC band source flux error from the Disk+Sersic fit
fluxerr_z_ext_hsc_disk_sersic uJy Zext HSC band source flux error from the Disk+Sersic fit
sersic_fract_vis_disk_sersic NA VIS band Sersic fraction
sersic_fract_y_disk_sersic NA NIR Y band Sersic fraction
sersic_fract_j_disk_sersic NA NIR J band Sersic fraction
sersic_fract_h_disk_sersic NA NIR H band Sersic fraction
sersic_fract_u_ext_decam_disk_sersic NA Uext DECam band Sersic fraction
sersic_fract_g_ext_decam_disk_sersic NA Gext DECam band Sersic fraction
sersic_fract_r_ext_decam_disk_sersic NA Rext DECam band Sersic fraction
sersic_fract_i_ext_decam_disk_sersic NA Iext DECam band Sersic fraction
sersic_fract_z_ext_decam_disk_sersic NA Zext DECam band Sersic fraction
sersic_fract_u_ext_lsst_disk_sersic NA Uext LSST band Sersic fraction
sersic_fract_g_ext_lsst_disk_sersic NA Gext LSST band Sersic fraction
sersic_fract_r_ext_lsst_disk_sersic NA Rext LSST band Sersic fraction
sersic_fract_i_ext_lsst_disk_sersic NA Iext LSST band Sersic fraction
sersic_fract_z_ext_lsst_disk_sersic NA Zext LSST band Sersic fraction
sersic_fract_u_ext_megacam_disk_sersic NA Uext Megacam band Sersic fraction
sersic_fract_r_ext_megacam_disk_sersic NA Rext Megacam band Sersic fraction
sersic_fract_g_ext_jpcam_disk_sersic NA Gext JPCAM band Sersic fraction
sersic_fract_i_ext_panstarrs_disk_sersic NA Iext PS band Sersic fraction
sersic_fract_z_ext_panstarrs_disk_sersic NA Zext PS band Sersic fraction
sersic_fract_g_ext_hsc_disk_sersic NA Gext HSC band Sersic fraction
sersic_fract_z_ext_hsc_disk_sersic NA Zext HSC band Sersic fraction
sersic_fract_vis_disk_sersic_err NA VIS band Sersic fraction error
sersic_fract_y_disk_sersic_err NA NIR Y band Sersic fraction error
sersic_fract_j_disk_sersic_err NA NIR J band Sersic fraction error
sersic_fract_h_disk_sersic_err NA NIR H band Sersic fraction error
sersic_fract_u_ext_decam_disk_sersic_err NA Uext DECam band Sersic fraction error
sersic_fract_g_ext_decam_disk_sersic_err NA Gext DECam band Sersic fraction error
sersic_fract_r_ext_decam_disk_sersic_err NA Rext DECam band Sersic fraction error
sersic_fract_i_ext_decam_disk_sersic_err NA Iext DECam band Sersic fraction error
sersic_fract_z_ext_decam_disk_sersic_err NA Zext DECam band Sersic fraction error
sersic_fract_u_ext_lsst_disk_sersic_err NA Uext LSST band Sersic fraction error
sersic_fract_g_ext_lsst_disk_sersic_err NA Gext LSST band Sersic fraction error
sersic_fract_r_ext_lsst_disk_sersic_err NA Rext LSST band Sersic fraction error
sersic_fract_i_ext_lsst_disk_sersic_err NA Iext LSST band Sersic fraction error
sersic_fract_z_ext_lsst_disk_sersic_err NA Zext LSST band Sersic fraction error
sersic_fract_u_ext_megacam_disk_sersic_err NA Uext Megacam band Sersic fraction error
sersic_fract_r_ext_megacam_disk_sersic_err NA Rext Megacam band Sersic fraction error
sersic_fract_g_ext_jpcam_disk_sersic_err NA Gext JPCAM band Sersic fraction error
sersic_fract_i_ext_panstarrs_disk_sersic_err NA Iext PS band Sersic fraction error
sersic_fract_z_ext_panstarrs_disk_sersic_err NA Zext PS band Sersic fraction error
sersic_fract_g_ext_hsc_disk_sersic_err NA Gext HSC band Sersic fraction error
sersic_fract_z_ext_hsc_disk_sersic_err NA Zext HSC band Sersic fraction error
flag_vis NA Objects flag keeping track of the flagged pixels in the VIS flag image
flag_y NA Objects flag keeping track of the flagged pixels in the NIR Y flag image
flag_j NA Objects flag keeping track of the flagged pixels in the NIR J flag image
flag_h NA Objects flag keeping track of the flagged pixels in the NIR H flag image
flag_nir_stack NA Objects flag keeping track of the flagged pixels in the NIR stack flag image
flag_u_ext_decam NA Objects flag keeping track of the flagged pixels in the UextDECam flag image
flag_g_ext_decam NA Objects flag keeping track of the flagged pixels in the GextDECam flag image
flag_r_ext_decam NA Objects flag keeping track of the flagged pixels in the RextDECam flag image
flag_i_ext_decam NA Objects flag keeping track of the flagged pixels in the IextDECam flag image
flag_z_ext_decam NA Objects flag keeping track of the flagged pixels in the ZextDECam flag image
flag_u_ext_lsst NA Objects flag keeping track of the flagged pixels in the Uext LSST flag image
flag_g_ext_lsst NA Objects flag keeping track of the flagged pixels in the Gext LSST flag image
flag_r_ext_lsst NA Objects flag keeping track of the flagged pixels in the Rext LSST flag image
flag_i_ext_lsst NA Objects flag keeping track of the flagged pixels in the Iext LSST flag image
flag_z_ext_lsst NA Objects flag keeping track of the flagged pixels in the Zext LSST flag image
flag_u_ext_megacam NA Objects flag keeping track of the flagged pixels in the Uext Megacam flag image
flag_r_ext_megacam NA Objects flag keeping track of the flagged pixels in the Rext Megacam flag image
flag_g_ext_jpcam NA Objects flag keeping track of the flagged pixels in the Gext JPCAM flag image
flag_i_ext_panstarrs NA Objects flag keeping track of the flagged pixels in the Iext PS flag image
flag_z_ext_panstarrs NA Objects flag keeping track of the flagged pixels in the Zext PS flag image
flag_g_ext_hsc NA Objects flag keeping track of the flagged pixels in the Gext HSC flag image
flag_z_ext_hsc NA Objects flag keeping track of the flagged pixels in the Zext HSC flag image
avg_trans_wave_vis Angstrom Average filter transmission curve wavelength for the VIS band
avg_trans_wave_y Angstrom Average filter transmission curve wavelength for the NIR Y band
avg_trans_wave_j Angstrom Average filter transmission curve wavelength for the NIR J band
avg_trans_wave_h Angstrom Average filter transmission curve wavelength for the NIR H band
avg_trans_wave_u_ext_decam Angstrom Average filter transmission curve wavelength for the DECam U band
avg_trans_wave_g_ext_decam Angstrom Average filter transmission curve wavelength for the DECam G band
avg_trans_wave_r_ext_decam Angstrom Average filter transmission curve wavelength for the DECam R band
avg_trans_wave_i_ext_decam Angstrom Average filter transmission curve wavelength for the DECam I band
avg_trans_wave_z_ext_decam Angstrom Average filter transmission curve wavelength for the DECam Z band
avg_trans_wave_u_ext_lsst Angstrom Average filter transmission curve wavelength for the LSST U band
avg_trans_wave_g_ext_lsst Angstrom Average filter transmission curve wavelength for the LSST G band
avg_trans_wave_r_ext_lsst Angstrom Average filter transmission curve wavelength for the LSST R band
avg_trans_wave_i_ext_lsst Angstrom Average filter transmission curve wavelength for the LSST I band
avg_trans_wave_z_ext_lsst Angstrom Average filter transmission curve wavelength for the LSST Z band
avg_trans_wave_u_ext_megacam Angstrom Average filter transmission curve wavelength for the Megacam U band
avg_trans_wave_r_ext_megacam Angstrom Average filter transmission curve wavelength for the Megacam R band
avg_trans_wave_g_ext_jpcam Angstrom Average filter transmission curve wavelength for the JPCAM G band
avg_trans_wave_i_ext_panstarrs Angstrom Average filter transmission curve wavelength for the PS I band
avg_trans_wave_z_ext_panstarrs Angstrom Average filter transmission curve wavelength for the PS Z band
avg_trans_wave_g_ext_hsc Angstrom Average filter transmission curve wavelength for the HSC G band
avg_trans_wave_z_ext_hsc Angstrom Average filter transmission curve wavelength for the HSC Z band
deblended_flag NA Flag marking if the object was originally blended with another one
parent_id NA ID of the parent sources of a deblended object
parent_visnir NA ID of the parent sources of a deblended object
blended_prob NA Probability that the source is blended with another source
she_flag NA Flags for objects SHE might want to remove (eg. bright stars)
variable_flag NA Object variability flag
binary_flag NA Flag for potentially binary stars
point_like_flag NA "Point-like flag : flag set to 1 for VIS detections with (DET_QUALITY_FLAG==0) AND (POINT_LIKE_PROBA>threshold), otherwise set to NaN"
point_like_prob NA Probability between 0 and 1 that the source is point-like (the estimation uses a 'star probability cub' defined in the MDB). Value is set to NaN for ...
extended_flag NA Extended source flag
extended_prob NA Probability between 0 and 1 that the source is extended
spurious_flag NA Spurious source flag
spurious_prob NA Probability between 0 and 1 that the source is spurious
mag_stargal_sep mag Magnitude used to compute POINT_LIKE_PROB
det_quality_flag NA Detection step flags that could indicate the possible corruption of the MAG_STARGAL_SEP values
mu_max mag/arcsec2 Peak surface brightness above the background in the detection band (directly from SExtractor)
mumax_minus_mag mag/arcsec2 "The difference between MU_MAX and MAG_STARGAL_SEP, valid even for NIR-only sources"
segmentation_area pix Isophotal area of the source above the analysis threshold (SExtractor ISOAREA_IMAGE)
semimajor_axis pix Semi-major axis of the source (from Asterism)
semimajor_axis_err pix Semi-major axis error
position_angle deg Position angle (CCW/x) of the source (SExtractor THETA_IMAGE) range: -90 up to +90 decimal degrees
position_angle_err deg Position angle error
ellipticity NA "A parametrization of how stretched an object is in the detection band, computed from the minor and major axes of the object itself (directly from SExt..."
ellipticity_err NA Ellipticity error
kron_radius pix Major semi-axis (in pixels) of the elliptical aperture used for total (Kron) aperture photometry on the detection image
kron_radius_err pix Error on the major semi-axis (in pixels) of the elliptical aperture used for total (Kron) aperture photometry on the detection image
fwhm arcsec "FWHM (in arcsec) used in a-phot to compute colors. A-phot fluxes are computed within apertures that are multiples (1, 2, 3, 4 times) of this FWHM"
gal_ebv mag Estimated galactic E(B-V) at the source centroid according to the reference Planck map
gal_ebv_err mag Error on galactic E(B-V) according to the reference Planck map
gaia_id NA The associated GAIA source id
gaia_match_quality NA The quality of the GAIA match
tileid NA Euclid Tile ID
x None None
y None None
z None None
spt_ind None None
htm20 None None
cntr None None
Tip
The MER catalog contains 476 columns, below are a few highlights:
object_id
flux_vis_psf, mer.flux_y_templfit,flux_j_templfit, mer.flux_h_templfit
fwhm
Define the following ADQL query to find the first 10k stars in the MER catalog#
Since we are just using the MER catalog alone, it does not have a column for classification. We can use the point_like_flag = 1 or point_like_prob>0.99 for stars.
Set all the fluxes to be greater than 0 so the object is detected in all four Euclid MER mosaic images
adql_stars = ("SELECT TOP 10000 mer.object_id, mer.ra, mer.dec, mer.flux_vis_psf, mer.fluxerr_vis_psf, mer.flux_y_templfit,mer.fluxerr_y_templfit, "
"mer.flux_j_templfit, mer.fluxerr_j_templfit, mer.flux_h_templfit, mer.fluxerr_h_templfit, mer.point_like_prob, mer.extended_prob "
f"FROM {table_mer} AS mer "
"WHERE mer.flux_vis_psf > 0 "
"AND mer.flux_y_templfit > 0 "
"AND mer.flux_j_templfit > 0 "
"AND mer.flux_h_templfit > 0 "
"AND mer.point_like_flag = 1 ")
# Run the query
result_stars = service.search(adql_stars)
df_s_irsa = result_stars.to_table().to_pandas() # Convert to Pandas DataFrame
# Display first few rows
df_s_irsa.head()
| object_id | ra | dec | flux_vis_psf | fluxerr_vis_psf | flux_y_templfit | fluxerr_y_templfit | flux_j_templfit | fluxerr_j_templfit | flux_h_templfit | fluxerr_h_templfit | point_like_prob | extended_prob | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | -590786812514737214 | 59.078681 | -51.473721 | 22.240271 | 0.110778 | 88.048264 | 0.968541 | 100.079498 | 0.976982 | 102.687408 | 0.882893 | 0.962297 | NaN |
| 1 | -589579380514737675 | 58.957938 | -51.473768 | 22.773048 | 0.108161 | 35.686611 | 0.569915 | 45.867817 | 0.624888 | 45.841610 | 0.634713 | 0.978700 | NaN |
| 2 | -589734969514776458 | 58.973497 | -51.477646 | 8.983518 | 0.072970 | 24.201298 | 0.487317 | 28.257515 | 0.484978 | 30.431122 | 0.524141 | 0.981156 | NaN |
| 3 | -590771690514661391 | 59.077169 | -51.466139 | 131.335403 | 0.271436 | 165.179672 | 1.304662 | 190.656906 | 1.278318 | 163.389511 | 1.261251 | 0.999248 | NaN |
| 4 | -585180135514680938 | 58.518014 | -51.468094 | 38.494297 | 0.137431 | 0.138735 | 0.102561 | 0.041126 | 0.100962 | 0.118098 | 0.286662 | 0.988542 | NaN |
2. Make a color-magnitude diagram using the catalogs pulled from IRSA#
Convert from flux in uJy to magnitudes using the zero point correction
Convert the error bars to magnitudes as well
Plot the color-magnitude diagram
mag_y_s_irsa=-2.5*np.log10(df_s_irsa["flux_y_templfit"]) + 23.9 # Y
mag_h_s_irsa=-2.5*np.log10(df_s_irsa["flux_h_templfit"]) + 23.9 # H
x_s_irsa = mag_y_s_irsa - mag_h_s_irsa # Y - H
y_s_irsa = mag_y_s_irsa
xerr_s_irsa= 2.5 / np.log(10) * np.sqrt((df_s_irsa["fluxerr_y_templfit"] / df_s_irsa["flux_y_templfit"])**2
+ (df_s_irsa["fluxerr_h_templfit"] / df_s_irsa["flux_h_templfit"])**2)
yerr_s_irsa= 2.5 / np.log(10) * (df_s_irsa["fluxerr_y_templfit"] / df_s_irsa["flux_y_templfit"])
plt.errorbar(x_s_irsa, y_s_irsa, xerr=xerr_s_irsa, yerr=yerr_s_irsa, fmt='o', markersize=1.5, ecolor='lightgrey', elinewidth=0.5, capsize=2)
plt.xlabel('Y-H')
plt.ylabel('Y')
plt.xlim(-10,10)
plt.ylim(10,35)
plt.title('10k Stars in MER catalog -- IRSA')
Text(0.5, 1.0, '10k Stars in MER catalog -- IRSA')
About this Notebook#
Author: Tiffany Meshkat (IPAC Scientist)
Updated: 2025-03-19
Contact: the IRSA Helpdesk with questions or reporting problems.