Crowded Field Source (gaiafpr.crowded_field_source)

The table has 529242 rows, 79 columns.

Description

Sources based on Service Interface Function (SIF) images of very dense regions in the sky. These sources build an add-on catalogue to the nominal Gaia catalogue. Nominal and SIF detections were not mixed to create these sources. These Sources are thus obtained from SIF image detections only. Sources already present in the nominal catalogue were removed from the SIF add-on catalogue.

Attribution

If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

More information can be found on the credit and citation instructions page.

Columns

Name Type UCD Unit Description
solution_id long meta.version

Solution Identifier
designation char meta.id
meta.main

Unique source designation (unique across all Data Releases)
region_name char meta.id

Name of the designated CrowdedField region in the sky
source_id long meta.id

Unique source identifier (unique within a particular Data Release) providing the CrowdedField-nature of the source via location bit
ref_epoch double meta.ref
time.epoch 		yr

Reference epoch
ra double pos.eq.ra
meta.main 		deg

Right ascension
ra_error float stat.error
pos.eq.ra 		mas

Standard error of right ascension
dec double pos.eq.dec
meta.main 		deg

Declination
dec_error float stat.error
pos.eq.dec 		mas

Standard error of declination
parallax double pos.parallax.trig mas

Parallax
parallax_error float stat.error
pos.parallax.trig 		mas

Standard error of parallax
parallax_over_error float stat.snr
pos.parallax.trig

Parallax divided by its standard error
pm float pos.pm
pos.eq 		mas.yr**-1

Total proper motion
pmra double pos.pm
pos.eq.ra 		mas.yr**-1

Proper motion in right ascension direction
pmra_error float stat.error
pos.pm
pos.eq.ra 		mas.yr**-1

Standard error of proper motion in right ascension direction
pmdec double pos.pm
pos.eq.dec 		mas.yr**-1

Proper motion in declination direction
pmdec_error float stat.error
pos.pm
pos.eq.dec 		mas.yr**-1

Standard error of proper motion in declination direction
ra_dec_corr float stat.correlation

Correlation between right ascension and declination
ra_parallax_corr float stat.correlation

Correlation between right ascension and parallax
ra_pmra_corr float stat.correlation

Correlation between right ascension and proper motion in right ascension
ra_pmdec_corr float stat.correlation

Correlation between right ascension and proper motion in declination
dec_parallax_corr float stat.correlation

Correlation between declination and parallax
dec_pmra_corr float stat.correlation

Correlation between declination and proper motion in right ascension
dec_pmdec_corr float stat.correlation

Correlation between declination and proper motion in declination
parallax_pmra_corr float stat.correlation

Correlation between parallax and proper motion in right ascension
parallax_pmdec_corr float stat.correlation

Correlation between parallax and proper motion in declination
pmra_pmdec_corr float stat.correlation

Correlation between proper motion in right ascension and proper motion in declination
n_scans short meta.number

Number of CrowdedField scans of the source location
astrometric_n_obs_al short meta.number

Total number of observations in the along-scan (AL) direction
astrometric_n_obs_ac short meta.number

Total number of observations in the across-scan (AC) direction
astrometric_n_good_obs_al short meta.number

Number of good observations in the along-scan (AL) direction
astrometric_n_bad_obs_al short meta.number

Number of bad observations in the along-scan (AL) direction
astrometric_gof_al float stat.fit.goodness

Goodness of fit statistic of model wrt along-scan observations
astrometric_chi2_al float stat.fit.chi2

AL chi-square value
astrometric_excess_noise float stat.value mas

Excess noise of the source
astrometric_excess_noise_sig float stat.value

Significance of excess noise
astrometric_params_solved short meta.number

Which parameters have been solved for?
pseudocolour float em.wavenumber um**-1

Astrometrically estimated pseudocolour of the source
pseudocolour_error float stat.error
em.wavenumber 		um**-1

Standard error of the pseudocolour of the source
ra_pseudocolour_corr float stat.correlation
em.wavenumber
pos.eq.ra

Correlation between right ascension and pseudocolour
dec_pseudocolour_corr float stat.correlation
em.wavenumber
pos.eq.dec

Correlation between declination and pseudocolour
parallax_pseudocolour_corr float stat.correlation
em.wavenumber
pos.parallax

Correlation between parallax and pseudocolour
pmra_pseudocolour_corr float stat.correlation
em.wavenumber
pos.pm
pos.eq.ra

Correlation between proper motion in right asension and pseudocolour
pmdec_pseudocolour_corr float stat.correlation
em.wavenumber
pos.pm
pos.eq.dec

Correlation between proper motion in declination and pseudocolour
astrometric_matched_transits short meta.number

Matched FOV transits used in the AGIS solution
visibility_periods_used short meta.number

Number of visibility periods used in Astrometric solution
astrometric_sigma5d_max float stat
pos.errorEllipse 		mas

The longest semi-major axis of the 5-d error ellipsoid
matched_transits short meta.number

The number of transits matched to this source
ipd_gof_harmonic_amplitude float stat.value

Amplitude of the IPD GoF versus position angle of scan
ipd_gof_harmonic_phase float pos.posAng
stat.value 		deg

Phase of the IPD GoF versus position angle of scan
scan_direction_strength_k1 float stat.value

Degree of concentration of scan directions across the source
scan_direction_strength_k2 float stat.value

Degree of concentration of scan directions across the source
scan_direction_strength_k3 float stat.value

Degree of concentration of scan directions across the source
scan_direction_strength_k4 float stat.value

Degree of concentration of scan directions across the source
scan_direction_mean_k1 float pos.posAng
stat.mean 		deg

Mean position angle of scan directions across the source
scan_direction_mean_k2 float pos.posAng
stat.mean 		deg

Mean position angle of scan directions across the source
scan_direction_mean_k3 float pos.posAng
stat.mean 		deg

Mean position angle of scan directions across the source
scan_direction_mean_k4 float pos.posAng
stat.mean 		deg

Mean position angle of scan directions across the source
astrometric_primary_flag boolean meta.code

Primary or secondary
phot_g_n_obs short meta.number

Number of observations contributing to G photometry
phot_g_mean_flux double phot.flux
em.opt 		"electron".s**-1

G-band mean flux
phot_g_mean_flux_error float stat.error
phot.flux
em.opt 		"electron".s**-1

Error on G-band mean flux
phot_g_mean_flux_over_error float stat.snr
phot.flux
em.opt

G-band mean flux divided by its error
phot_g_mean_mag float phot.mag
em.opt 		mag

G-band mean magnitude
phot_g_flux_uwv double stat.weight

Unit weight variance of fluxes
phot_g_flux_median float phot.flux
stat.median 		"electron".s**-1

Median flux
phot_g_flux_skewness float phot.flux
stat.value

Measure of the skewness of the flux distribution
phot_g_flux_kurtosis float phot.flux
stat.value

Measure of the kurtosis of the flux distribution
phot_g_flux_mad float phot.flux
stat.value 		"electron".s**-1

MAD of the flux distribution
phot_g_flux_first_quartile float phot.flux
stat.value 		"electron".s**-1

First quartile of the flux distribution
phot_g_flux_third_quartile float phot.flux
stat.value 		"electron".s**-1

Third quartile of the flux distribution
phot_g_flux_min float phot.flux
stat.min 		"electron".s**-1

Minimum flux value
phot_g_flux_max float phot.flux
stat.max 		"electron".s**-1

Maximum flux value
phot_proc_mode short meta.code

Photometry processing mode
l double pos.galactic.lon deg

Galactic longitude
b double pos.galactic.lat deg

Galactic latitude
ecl_lon double pos.ecliptic.lon deg

Ecliptic longitude
ecl_lat double pos.ecliptic.lat deg

Ecliptic latitude
pos char