Second Planck Catalog of Compact Sources (PCCS2)

About PCCS2

The second Planck Catalogue of Compact Sources (PCCS2) is a set of single-frequency source catalogues extracted from the Planck full-mission maps in intensity and polarization. The 100, 143, 217, and 353 GHz catalogs include polarization measurements. The 857 GHz source list has six additional columns which give the flux densities and flux density uncertainties at the three adjacent lower frequencies: 217, 353, and 545 GHz.

Planck PCCS2 Data Column Descriptions

Name Intype Units Description
NAME char None Source Name
GLON double degrees Galactic longitude based on extraction algorithm
GLAT double degrees Galactic latitude based on extraction algorithm
RA double degrees Right ascension (J2000) transformed from (GLON,GLAT)
DEC double degrees Declination(J2000) transformed from (GLON,GLAT)
DETFLUX double mJy Flux density of source as determined by detection method
DETFLUX_ERR double mJy Uncertainty (1 sigma) in derived flux density from detection method
APERFLUX double mJy Flux density of source as determined from the aperture photometry
APERFLUX_ERR double mJy Uncertainty (1 sigma) in derived flux density from the aperture photometry
PSFFLUX double mJy Flux density of source as determined from PSF fitting
PSFFLUX_ERR double mJy Uncertainty (1 sigma) in derived flux density from PSF fitting
GAUFLUX double mJy Flux density of source as determined from 2-D Gaussian fitting
GAUFLUX_ERR double mJy Uncertainty (1 sigma) in derived flux density from 2-D Gaussian fitting
GAU_SEMI1 double arcmin Gaussian fit along axis 1
GAU_SEMI1_ERR double arcmin Uncertainty (1 sigma) in Gaussian fit along axis 1
GAU_SEMI2 double arcmin Gaussian fit along axis 2
GAU_SEMI2_ERR double arcmin Uncertainty (1 sigma) in Gaussian fit along axis 2
GAU_THETA double degrees Gaussian fit orientation angle counting anti-clockwise from the x-axis
GAU_THETA_ERR double degrees Uncertainty (1 sigma) in derived Gaussian fit orientation angle
GAU_FWHM_EFF double arcmin Gaussian fit effective FWHM
P double mJy Polarization flux density as determined by matched filter
P_ERR double mJy Uncertainty in polarization flux density as determined by matched filter
ANGLE_P double degrees Orientation of polarization with respect to NGP
ANGLE_P_ERR double degrees Uncertainty in orientation of polarization with respect to NGP
APER_P double mJy Polarization flux density as determined by aperture photometry
APER_P_ERR double mJy Uncertainty in polarization flux density as determined by aperture photometry
APER_ANGLE_P double degrees Orientation of polarization with respect to NGP
APER_ANGLE_P_ERR double degrees Uncertainty in orientation of polarization with respect to NGP
P_STAT integer Polarization detection status
PX double mJy Polarization flux density as determined by a matched filter using Bayesian polarization estimator
PX_ERR_LOWER double mJy PX uncertainty; lower 95% error bar
PX_ERR_UPPER double mJy PX uncertainty; upper 95% error bar
ANGLE_PX double degrees Orientation of polarization with respect to NGP using Bayesian polarization estimator
ANGLE_PX_ERR_LOWER double degrees ANGLE_PX uncertainty; lower 95% error bar
ANGLE_PX_ERR_UPPER double degrees ANGLE_PX uncertainty; upper 95% error bar
EXTENDED int 0/1 Flag indicating that source is extended
EXT_VAL int 0/1/2 Flag indicating external validation
ERCSC char None Name of ERCSC counterpart if any
PCCS1 char None Name of PCCS1 counterpart if any
HIGHEST_RELIABILITY_CAT int None Highest reliability catalogue to which the source belongs; 80% is the lowest possible value
CIRRUS_N int None Number of sources detected down to SNR of 5 at 857 GHz within 1 degree
APERFLUX_217 double mJy Source flux density at 217 GHz (best estimation) of the object detected at 857
APERFLUX_ERR_217 double mJy Uncertainty (1 sigma) in source flux density at 217 GHz
APERFLUX_353 double mJy Source flux density at 217 GHz (best estimation) of the object detected at 857
APERFLUX_ERR_353 double mJy Uncertainty (1 sigma) in source flux density at 353 GHz
APERFLUX_545 double mJy Source flux density at 217 GHz (best estimation) of the object detected at 857
APERFLUX_ERR_545 double mJy Uncertainty (1 sigma) in source flux density at 545 GHz