SPASS2P3GH ivo://nasa.heasarc/spass2p3gh NASA/GSFC HEASARC Meyers et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The S-band Polarization All-Sky Survey (S-PASS) has observed the entire southern sky using the 64-meter Parkes radio telescope at 2.3 GHz with an effective bandwidth of 184 MHz. The surveyed sky area covers all Declinations < 0 degrees. To analyze compact sources the survey data have been re-processed to produce a set of 107 Stokes I maps with 10.75-arcminute resolution and the large scale emission contribution filtered out. In this paper, the authors use these Stokes I images to create a total intensity southern-sky extragalactic source catalog at 2.3 GHz. The source catalog contains 23,389 sources and covers a sky area of 16,600 deg<sup>2</sup>, excluding the Galactic plane for latitudes |b| < 10 degrees. Approximately 8% of the catalogued sources are resolved. S-PASS source positions are typically accurate to within 35 arcseconds. At a flux density of 225 mJy, the S-PASS source catalog is more than 95% complete, and ~94% of S-PASS sources brighter than 500 mJy/beam have a counterpart at lower frequencies. The observations were carried out over the period from October 2007 to January 2010 using the Parkes S-band receiver. The S-band receiver is a package with: a system temperature T<sub>sys</sub> = 20K, a beam Full Width at Half Maximum (FWHM) of 8.9 arcminutes, and a circular polarization front-end that is ideal for linear polarization observations with single-dish telescopes. This table was ingested by the HEASARC in August 2017 based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/other/PASA/34.13">CDS catalog J/other/PASA/34.13</a> file s-pass.dat. This is a service provided by NASA HEASARC . 2017PASA...34...13M https://heasarc.gsfc.nasa.gov/W3Browse/all/spass2p3gh.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=spass2p3gh& GET text/xml 180 99999 true 103.59058333 -89.09573333 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=spass2p3gh GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_spass2p3gh&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.0833333333333333 Radio public spass2p3gh S-PASS (S-Band Polarization All-Sky Survey) 2.3-GHz Source Catal name Source Designation (SPASS JHHMMSS+DDMMSS) meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable ra_error RMS Uncertainty in Right Ascension arcsec stat.error;pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable dec_error RMS Uncertainty in Declination arcsec stat.error;pos.eq.dec;meta.main double nullable flux_2p3_ghz Peak Flux Density at 2307 MHz mJy/beam phot.flux.density;em.radio.1500-3000MHz double nullable flux_2p3_ghz_error RMS Uncertainty in Peak Flux Density at 2307 MHz mJy/beam stat.error;phot.flux.density;em.radio.1500-3000MHz double nullable int_flux_2p3_ghz Integrated Flux Density at 2307 MHz mJy phot.flux.density;em.radio.1500-3000MHz double nullable int_flux_2p3_ghz_error RMS Uncertainty in Integrated Flux Density at 2307 MHz mJy stat.error;phot.flux.density;em.radio.1500-3000MHz double 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 rms_2p3_ghz Local RMS Noise mJy/beam stat.error;phot.flux.density;em.radio.1500-3000MHz double nullable position_angle_error RMS Uncertainty in Fitted Position Angle degree stat.error;pos.posAng double nullable semiminor_axis_error RMS Uncertainty in Fitted Semi-Minor Axis arcsec stat.error;phys.angSize.sminAxis double nullable lii Galactic Longitude degree pos.galactic.lon double nullable semiminor_axis Fitted Semi-Minor Axis arcsec phys.angSize.sminAxis double nullable position_angle Fitted Position Angle, Measured N to E degree pos.posAng double nullable semimajor_axis Fitted Semi-Major Axis arcsec phys.angSize.smajAxis double nullable bii Galactic Latitude degree pos.galactic.lat double nullable bck_2p3_ghz Local Background Level mJy/beam stat.error;phot.flux.density;em.radio.1500-3000MHz double nullable residual_std_dev Standard Deviation of Data Subtract Model mJy/beam stat.fit.residual double nullable residual_mean Mean Value of Data Subtract Model mJy/beam stat.fit.residual double nullable semimajor_axis_error RMS Uncertainty in Fitted Semi-Major Axis arcsec stat.error;phys.angSize.smajAxis double nullable