IRASPSC ivo://nasa.heasarc/iraspsc NASA/GSFC HEASARC IPAC 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The IRAS Point Source Catalog, Version 2.0, is a catalog of some 250,000 well-confirmed infrared point sources observed by the Infrared Astronomical Satellite (IRAS), i.e., sources with angular extents less than approximately 0.5, 0.5, 1.0, and 2.0 arcminutes in the in-scan direction at 12, 25, 60, and 100 microns (µm), respectively. Positions, flux densities, uncertainties, associations with known astronomical objects and various cautionary flags are given for each objectin the catalog. Away from confused regions of the sky, the survey is complete to about 0.4, 0.5, 0.6, and 1.0 Janskies (Jy) at 12, 25, 60, and 100 microns, respectively. Typical position uncertainties are about 2 to 6 arcseconds in the in-scan direction and about 8 to 16 arcseconds in the cross-scan direction. This online version of the IRASPSC was created by the HEASARC in April 2002 based on ADC/<a href="https://cdsarc.cds.unistra.fr/ftp/cats/II/125">CDS Catalog II/125</a> (the main file). This is a service provided by NASA HEASARC . 1988IRASP.C......0J https://heasarc.gsfc.nasa.gov/W3Browse/all/iraspsc.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=iraspsc& GET text/xml 180 99999 true 352.50086738 -89.82824202 0.25 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=iraspsc GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_iraspsc&Action=More+Options&Action=Parameter+Search&ConeAdd=1 IRAS 0.25 Infrared public iraspsc IRAS Point Source Catalog, Version 2.0 name IRAS Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable flux_12um Average Non-Color-Corrected Flux Density, 12um (Jy) Jy phot.flux.density;em.IR.8-15um double nullable flux_25um Average Non-Color Corrected Flux Density, 25um (Jy) Jy phot.flux.density;em.IR.15-30um double nullable flux_60um Average Non-Color Corrected Flux Density, 60um (Jy) Jy phot.flux.density;em.IR.60-100um double nullable flux_100um Average Non-Color Corrected Flux Density, 100um (Jy) Jy phot.flux.density;em.IR.60-100um double nullable number_lrs Number of Significant LRS Spectra short nullable pa_error_ellipse Uncertainty Ellipse Position Angle (degree) degree stat.error;pos.posAng short nullable corr_factor_100um Flux Correction Factor Applied, 100um arith.factor;phot.flux.density double nullable rel_error_flux_12um Percent Relative Flux Density Uncertainty, 12um percent stat.error;phot.flux.density;em.IR.8-15um short nullable num_near_weeks Number of Nearby Weeks-Confirmed Point Sources short nullable times_observed Number of Times Observed meta.number;obs short nullable corr_factor_60um Flux Correction Factor Applied, 60um arith.factor;phot.flux.density double nullable quality_flag_12um Flux Density Quality, 12um meta.code.qual;phot.flux.density;em.IR.8-15um short nullable min_snr_25um Minimum Signal-to-Noise Ratio, 25um stat.snr;em.IR.15-30um;stat.min double nullable number_id Number of Positional Associations short nullable min_snr_60um Minimum Signal-to-Noise Ratio, 60um stat.snr;em.IR.60-100um;stat.min double nullable num_near_hours Number of Nearby Hours-Confirmed Point Sources short nullable sky_brightness_100um Total 100-micron Sky Surface Brightness (MJy/sr) MJy/sr phot.flux.density.sb;em.IR.60-100um short nullable id_type Type of Object src.class short nullable rel_error_flux_60um Percent Relative Flux Density Uncertainty, 60um percent stat.error;phot.flux.density;em.IR.60-100um short nullable corr_factor_25um Flux Correction Factor Applied, 25um arith.factor;phot.flux.density double nullable rel_error_flux_100um Percent Relative Flux Density Uncertainty, 100um percent stat.error;phot.flux.density;em.IR.60-100um short nullable error_semi_maj_axis Uncertainty Ellipse Semi-Major Axis (arcsec) arcsec stat.error;phys.size.smajAxis short nullable corr_coeff Point Source Correlation Coefficients stat.correlation char nullable lii Galactic Longitude degree pos.galactic.lon double nullable error_semi_min_axis Uncertainty Ellipse Semi-Minor Axis (arcsec) arcsec stat.error;phys.size.sminAxis short nullable quality_flag_100um Flux Density Quality, 100um meta.code.qual;phot.flux.density;em.IR.60-100um short nullable rel_error_flux_25um Percent Relative Flux Density Uncertainty, 25um percent stat.error;phot.flux.density;em.IR.15-30um short nullable min_snr_100um Minimum Signal-to-Noise Ratio, 100um stat.snr;em.IR.60-100um;stat.min double nullable quality_flag_25um Flux Density Quality, 25um meta.code.qual;phot.flux.density;em.IR.15-30um short nullable num_ext_src_weeks Nearby Weeks-Confirmed Small Extant Source Flags char nullable ratio_100um 100-micron Sky Brightness Ratio to Flux Density phot.flux;arith.ratio short nullable min_snr_12um Minimum Signal-to-Noise Ratio, 12um stat.snr;em.IR.8-15um;stat.min double nullable bii Galactic Latitude degree double nullable num_ext_src_secs Nearby Seconds-Confirmed Small Extant Source Flags char nullable corr_factor_12um Flux Correction Factor Applied, 12um arith.factor;phot.flux.density double nullable num_100um_src Number of Nearby 100-micron Only WSDB Sources short nullable var_likelihood Percent Likelihood of Variability stat.likelihood;src.var short nullable quality_flag_60um Flux Density Quality, 60um meta.code.qual;phot.flux.density;em.IR.60-100um short nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable