<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2016-01-01T00:00:00" status="active" updated="2026-05-22T11:00:15" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:stc="http://www.ivoa.net/xml/STC/stc-v1.30.xsd" xmlns:vg="http://www.ivoa.net/xml/VORegistry/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/ConeSearch/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/ConeSearch-v1.1.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface-v1.0.xsd http://www.ivoa.net/xml/STC/stc-v1.30.xsd http://vo.ari.uni-heidelberg.de/docs/schemata/stc-v1.30.xsd http://www.ivoa.net/xml/VORegistry/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VORegistry-v1.0.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource-v1.1.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService-v1.1.xsd http://www.w3.org/1999/xlink http://vo.ari.uni-heidelberg.de/docs/schemata/xlink.xsd" xsi:type="vs:CatalogService"><title>TGSSADR Source Catalogue</title><shortName>TGSSADR CS</shortName><identifier>ivo://astron.nl/tgssadr/q/cone</identifier><curation><publisher>ASTRON</publisher><creator><name>Intema, H.; Mooley, K.</name></creator><date role="updated">2026-05-22T11:00:15</date><contact><name>Michael Sipior</name><address>Oude Hoogeveensedijk 4, 7991PD Dwingeloo, the Netherlands</address><email>vo@astron.nl</email></contact></curation><content><subject>Catalogs</subject><description> This service queries the catalogue of radio sources from the images
of the TIFR GMRT Sky Survey (TGSS) Alternative Data Release (up to 1
deg square). This data release contains previously unpublished data
from the TIFR GMRT Sky Survey (TGSS), which has been independently
reprocessed. It includes continuum stokes I images of 99.5 percent of
the radio sky north of -53° DEC (3.6π sr, or 90 percent of the full
sky) at a resolution of 25“ x 25” north of 19° DEC and 25“ x 25” /
cos(DEC-19°) south of 19°, and a median noise of 3.5 mJy/beam. The
extracted radio source catalog contains positions, flux densities,
sizes and more for 0.62 Million sources down to a 7-sigma
peak-to-noise threshold.</description><referenceURL>https://vo.astron.nl/tgssadr/q/cone/info</referenceURL><relationship><relationshipType>served-by</relationshipType><relatedResource ivo-id="ivo://astron.nl/tap">The VO @ ASTRON TAP service</relatedResource></relationship></content><capability standardID="ivo://ivoa.net/std/ConeSearch" xsi:type="cs:ConeSearch"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="base">https://vo.astron.nl/tgssadr/q/cone/scs.xml?</accessURL><queryType>GET</queryType><resultType>application/x-votable+xml</resultType><param std="true"><name>RA</name><description>Right Ascension (ICRS decimal)</description><unit>deg</unit><ucd>pos.eq.ra</ucd><dataType>real</dataType></param><param std="true"><name>DEC</name><description>Declination (ICRS decimal)</description><unit>deg</unit><ucd>pos.eq.dec</ucd><dataType>real</dataType></param><param std="true"><name>SR</name><description>Search radius</description><unit>deg</unit><dataType>real</dataType></param><param std="true"><name>RESPONSEFORMAT</name><description>File format requested for output.</description><ucd>meta.code.mime</ucd><dataType arraysize="*">char</dataType></param><param std="true"><name>MAXREC</name><description>Maximum number of records returned. Pass 0 to retrieve service parameters.</description><dataType>integer</dataType></param><param std="true"><name>VERB</name><description>Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns.</description><dataType>integer</dataType></param></interface><maxSR>180</maxSR><maxRecords>100000</maxRecords><verbosity>true</verbosity><testQuery><ra>150.0</ra><dec>45.0</dec><sr>0.001</sr></testQuery></capability><capability standardID="ivo://ivoa.net/std/VOSI#availability"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">https://vo.astron.nl/tgssadr/q/cone/availability</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#capabilities"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">https://vo.astron.nl/tgssadr/q/cone/capabilities</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#tables"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">https://vo.astron.nl/tgssadr/q/cone/tableMetadata</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface role="std" version="1.1" xsi:type="vs:ParamHTTP"><accessURL use="base">https://vo.astron.nl/tap</accessURL></interface></capability><coverage><stc:STCResourceProfile><stc:AstroCoordSystem id="nddugbepdosa"><stc:SpaceFrame id="nddubgmliwsa"><stc:ICRS/><stc:UNKNOWNRefPos/><stc:SPHERICAL coord_naxes="2"/></stc:SpaceFrame></stc:AstroCoordSystem><stc:AstroCoordArea coord_system_id="nddugbepdosa"><stc:AllSky frame_id="nddubgmliwsa" unit="deg"/></stc:AstroCoordArea></stc:STCResourceProfile><waveband>Radio</waveband></coverage><tableset><schema><name>tgssadr</name><title>TGSSADR Source Catalogue</title><description> This service queries the catalogue of radio sources from the images
of the TIFR GMRT Sky Survey (TGSS) Alternative Data Release (up to 1
deg square). This data release contains previously unpublished data
from the TIFR GMRT Sky Survey (TGSS), which has been independently
reprocessed. It includes continuum stokes I images of 99.5 percent of
the radio sky north of -53° DEC (3.6π sr, or 90 percent of the full
sky) at a resolution of 25“ x 25” north of 19° DEC and 25“ x 25” /
cos(DEC-19°) south of 19°, and a median noise of 3.5 mJy/beam. The
extracted radio source catalog contains positions, flux densities,
sizes and more for 0.62 Million sources down to a 7-sigma
peak-to-noise threshold.</description><table><name>tgssadr.main</name><description> This service queries the catalogue of radio sources from the images
of the TIFR GMRT Sky Survey (TGSS) Alternative Data Release (up to 1
deg square). This data release contains previously unpublished data
from the TIFR GMRT Sky Survey (TGSS), which has been independently
reprocessed. It includes continuum stokes I images of 99.5 percent of
the radio sky north of -53° DEC (3.6π sr, or 90 percent of the full
sky) at a resolution of 25“ x 25” north of 19° DEC and 25“ x 25” /
cos(DEC-19°) south of 19°, and a median noise of 3.5 mJy/beam. The
extracted radio source catalog contains positions, flux densities,
sizes and more for 0.62 Million sources down to a 7-sigma
peak-to-noise threshold.</description><column><name>id</name><description>Source ID</description><ucd>meta.id;meta.main</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>primary</flag></column><column><name>ra</name><description>Source J2000 Right Ascension, in decimal degrees.</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag></column><column><name>e_ra</name><description>Error on source J2000 Right Ascension, in arcseconds</description><unit>arcsec</unit><ucd>stat.error;pos.eq.ra</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>dec</name><description>Source J2000 Declination, in decimal degrees.</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag></column><column><name>e_dec</name><description>Error on source J2000 Declination, in arcseconds</description><unit>arcsec</unit><ucd>stat.error;pos.eq.dec</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>sint</name><description>Source integrated flux, in mJy</description><unit>mJy</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>e_sint</name><description>Error on source integrated flux, in mJy</description><unit>mJy</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>spk</name><description>Source peak flux, in mJy/beam</description><unit>mJy/beam</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>e_spk</name><description>Error on source peak flux, in mJy/beam</description><unit>mJy/beam</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>majax</name><description>Major axis of fitted ellipse</description><unit>arcsec</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>e_majax</name><description>Error on major axis</description><unit>arcsec</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>minax</name><description>Minor axis of fitted ellipse</description><unit>arcsec</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>e_minax</name><description>Error on minor axis</description><unit>arcsec</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>pa</name><description>Position angle of fitted ellipse, in degrees</description><unit>deg</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>e_pa</name><description>Error on position angle</description><unit>deg</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>island_rms</name><description>The local RMS noise computed in a 40 pixel square around centered on the source, in mJy/beam.</description><unit>mJy/beam</unit><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>s_code</name><description>A code that defines the multiplicity of the source structure in terms of Gaussian (Gaus) components:'S' refers to a single-Gaussian source, 'C' refers to a single-Gaussian source nearby other sources, and 'M' is a source fit by multiple Gaussians.</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>mosaic_name</name><description>The name of the image mosaic from which the the source entry was extracted.</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>