<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><oai:OAI-PMH xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:stc="http://www.ivoa.net/xml/STC/stc-v1.30.xsd" 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.openarchives.org/OAI/2.0/ http://vo.ari.uni-heidelberg.de/docs/schemata/OAI-PMH.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/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource-v1.0.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"><oai:responseDate>2026-05-25T14:40:08.138403</oai:responseDate><oai:metadata><ri:Resource created="2017-05-05T10:10:10Z" status="active" updated="2017-10-16T18:30:34" xsi:type="vs:CatalogService"><title>VERITAS Spectra SSAP Interface</title><shortName>Veritas SSAP</shortName><identifier>ivo://bsdc.icranet.org/veritas/q/ssa</identifier><curation><publisher>BSDC</publisher><creator><name>Carlos Brandt</name></creator><date role="updated">2017-10-16T18:30:34</date><contact><name>Carlos H. Brandt</name><address>Piazza della Repubblica 10, 65122, Pescara, Italia</address><email>carlos.henrique.brandt@gmail.com</email><telephone>+393248404669</telephone></contact></curation><content><subject>spectra</subject><subject>high energy astrophysics</subject><subject>gamma rays</subject><description> The VERITAS spectra database. --- VERITAS-SVO.alpha version</description><referenceURL>http://vo.bsdc.icranet.org/veritas/q/ssa/info</referenceURL><type>Archive</type><contentLevel>Research</contentLevel></content><facility>VERITAS</facility><coverage><stc:STCResourceProfile><stc:AstroCoordSystem id="aspidupstodn"><stc:SpaceFrame id="asoidupstodn"><stc:ICRS/><stc:UNKNOWNRefPos/><stc:SPHERICAL coord_naxes="2"/></stc:SpaceFrame></stc:AstroCoordSystem><stc:AstroCoordArea coord_system_id="aspidupstodn"><stc:AllSky frame_id="asoidupstodn" unit="deg"/></stc:AstroCoordArea></stc:STCResourceProfile><waveband>Gamma-ray</waveband></coverage><tableset><schema><name>veritas</name><title>VERITAS</title><description> The VERITAS spectra database. --- VERITAS-SVO.alpha version</description><table type="output"><name>output</name><column><name>ssa_score</name><description>A measure of how closely the record matches your query. Higher numbers mean better matches.</description><utype>ssa:Query.Score</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>location_ra</name><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><utype>ssa:Char.SpatialAxis.Coverage.Location.Value.C1</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>location_dec</name><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd><utype>ssa:Char.SpatialAxis.Coverage.Location.Value.C2</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>location_arr</name><description>Observed position RA and Dec as a 2-real array as required by SSAP.</description><ucd>pos.eq</ucd><utype>ssa:Char.SpatialAxis.Coverage.Location.Value</utype><dataType arraysize="2" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>target_arr</name><description>Target RA and Dec as a 2-real array as required by SSAP.</description><ucd>pos.eq;src</ucd><utype>ssa:Target.Pos</utype><dataType arraysize="2" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>preview</name><description>URL of a preview for the dataset, where available.</description><ucd>meta.ref.url;datalink.preview</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>accref</name><description>Access key for the data</description><ucd>meta.ref.url;meta.dataset</ucd><utype>ssa:Access.Reference</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>owner</name><description>Owner of the data</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>embargo</name><description>Date the data will become/became public</description><unit>a</unit><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>mime</name><description>MIME type of the file served</description><utype>ssa:Access.Format</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>accsize</name><description>Size of the data in bytes</description><unit>byte</unit><ucd>VOX:Image_FileSize</ucd><utype>ssa:Access.Size</utype><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>ssa_dstitle</name><description>Title or the dataset (usually, spectrum)</description><ucd>meta.title;meta.dataset</ucd><utype>ssa:DataID.Title</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType></column><column><name>ssa_creatordid</name><description>Dataset identifier assigned by the creator</description><ucd>meta.id</ucd><utype>ssa:DataID.CreatorDID</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_pubdid</name><description>Dataset identifier assigned by the publisher</description><utype>ssa:Curation.PublisherDID</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_cdate</name><description>Processing/Creation date</description><ucd>time;meta.dataset</ucd><utype>ssa:DataID.Date</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_pdate</name><description>Date last published.</description><utype>ssa:Curation.Date</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_bandpass</name><description>Bandpass (i.e., rough spectral location) of this dataset; use something generic like 'Optical' here.</description><ucd>instr.bandpass</ucd><utype>ssa:DataID.Bandpass</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_cversion</name><description>Creator assigned version for this dataset (will be incremented when this particular item is changed).</description><ucd>meta.version;meta.dataset</ucd><utype>ssa:DataID.Version</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_targname</name><description>Common name of object observed.</description><ucd>meta.id;src</ucd><utype>ssa:Target.Name</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType></column><column><name>ssa_targclass</name><description>Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible)</description><ucd>src.class</ucd><utype>ssa:Target.Class</utype><dataType arraysize="*" 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arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_length</name><description>Number of points in the spectrum</description><utype>ssa:Dataset.Length</utype><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>bibcode</name><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>article</name><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ra</name><description>Right Ascension</description><unit>deg</unit><ucd>pos.eq.ra</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">double</dataType></column><column><name>dec</name><description>Declination</description><unit>deg</unit><ucd>pos.eq.dec</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">double</dataType></column><column><name>activitytag</name><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table><table><name>veritas.main</name><description> The VERITAS spectra database. --- VERITAS-SVO.alpha version</description><column><name>accref</name><description>Access key for the data</description><ucd>meta.ref.url;meta.dataset</ucd><utype>ssa:Access.Reference</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>owner</name><description>Owner of the data</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>embargo</name><description>Date the data will become/became public</description><unit>a</unit><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>mime</name><description>MIME type of the file served</description><utype>ssa:Access.Format</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>accsize</name><description>Size of the data in bytes</description><unit>byte</unit><ucd>VOX:Image_FileSize</ucd><utype>ssa:Access.Size</utype><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>ssa_dstitle</name><description>Title or the dataset (usually, spectrum)</description><ucd>meta.title;meta.dataset</ucd><utype>ssa:DataID.Title</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType></column><column><name>ssa_creatordid</name><description>Dataset identifier assigned by the creator</description><ucd>meta.id</ucd><utype>ssa:DataID.CreatorDID</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>ssa_pubdid</name><description>Dataset identifier assigned by the publisher</description><utype>ssa:Curation.PublisherDID</utype><dataType arraysize="*" 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xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_targetpos</name><description>Equatorial (ICRS) position of the target object.</description><ucd>pos.eq;src</ucd><utype>ssa:Target.pos.spoint</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>ssa_snr</name><description>Signal-to-noise ratio estimated for this dataset</description><ucd>stat.snr</ucd><utype>ssa:Derived.SNR</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_location</name><description>ICRS location of aperture center</description><unit>deg</unit><ucd>pos.eq</ucd><utype>stc:AstroCoords.Position2D.Value2</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_aperture</name><description>Angular diameter of aperture</description><unit>deg</unit><ucd>instr.fov</ucd><utype>ssa:Char.SpatialAxis.Coverage.Bounds.Extent</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_dateobs</name><description>Midpoint of exposure</description><unit>d</unit><ucd>time.epoch</ucd><utype>ssa:Char.TimeAxis.Coverage.Location.Value</utype><dataType arraysize="1" xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ssa_timeext</name><description>Exposure duration</description><unit>s</unit><ucd>time.duration</ucd><utype>ssa:Char.TimeAxis.Coverage.Bounds.Extent</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_specmid</name><description>Midpoint of region covered in this dataset</description><unit>m</unit><ucd>em.wl;instr.bandpass</ucd><utype>ssa:Char.SpectralAxis.Coverage.Location.Value</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_specext</name><description>Width of the spectrum</description><unit>m</unit><ucd>em.wl;instr.bandwidth</ucd><utype>ssa:Char.SpectralAxis.Coverage.Bounds.Extent</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_specstart</name><description>Lower value of spectral coordinate</description><unit>m</unit><ucd>em.wl;stat.min</ucd><utype>ssa:Char.SpectralAxis.Coverage.Bounds.Start</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_specend</name><description>Upper value of spectral coordinate</description><unit>m</unit><ucd>em.wl;stat.max</ucd><utype>ssa:Char.SpectralAxis.Coverage.Bounds.Stop</utype><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_length</name><description>Number of points in the 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