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<ri:Resource created="2025-06-24T09:45:29Z" status="active" updated="2026-05-14T11:47:37Z" version="1.2" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:ssap0="http://www.ivoa.net/xml/SSA/v1.1" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/SSA/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/SSA.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>HERMES Data Archive Portal</title><shortName>hermes SSAP</shortName><identifier>ivo://mercator/hermes/q/ssa</identifier><curation><publisher>Mercator Observatory, KU Leuven</publisher><creator><name>Prins, S.</name></creator><creator><name>Dirickx, M.</name></creator><creator><name>Van Winckel, H.</name></creator><creator><name>Raskin, G.</name></creator><date role="updated">2026-05-14T11:47:37Z</date><contact><name>Mercator Archive support team</name><address>Roque de los Muchachos Observatory, La Palma</address><email>archive@mercator.iac.es</email></contact></curation><content><subject>spectroscopy</subject><subject>stars</subject><subject>high-resolution-spectroscopy</subject><description>High resolution spectra from the HERMES spectrograph at the Flemish
Mercator Telescope, operated by KU Leuven at the Roque de Los
Muchachos Observatory on the island of La Palma. HERMES (High
Efficiency and Resolution Mercator Echelle Spectrograph) covers the
377-900 nm wavelength range in one fixed setting.</description><source format="bibcode">2011A&amp;A...526A..69R</source><referenceURL>https://mercatorvo.ster.kuleuven.be/hermes/q/ssa/info</referenceURL><type>Archive</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://mercator/tap">Mercator Observatory Data Archive TAP service</relatedResource></relationship></content><capability standardID="ivo://ivoa.net/std/SSA" xsi:type="ssap0:SimpleSpectralAccess"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="base">https://mercatorvo.ster.kuleuven.be/hermes/q/ssa/ssap.xml?</accessURL><queryType>GET</queryType><resultType>application/x-votable+xml</resultType><param std="true"><name>POS</name><description>ICRS position of target object</description><unit>deg</unit><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>SIZE</name><description>Size of the region of interest around POS</description><unit>deg</unit><dataType xsi:type="vs:SimpleDataType">real</dataType></param><param std="true"><name>BAND</name><description>Wavelength (range) of interest (or symbolic bandpass names)</description><unit>m</unit><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>TIME</name><description>Midpoint of exposure (MJD)</description><ucd>time.epoch</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>FORMAT</name><description>MIME type of the file served</description><ucd>meta.code.mime</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>APERTURE</name><description>Angular diameter of aperture</description><unit>deg</unit><ucd>phys.angSize;instr.fov</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>SNR</name><description>Signal-to-noise ratio estimated for this dataset</description><ucd>stat.snr</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>REDSHIFT</name><description>Redshift of target object</description><ucd>src.redshift</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>TARGETNAME</name><description>Common name of object observed.</description><ucd>meta.id;src</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>TARGETCLASS</name><description>Object class (star, QSO,...; 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Pass 0 to retrieve service parameters.</description><dataType xsi:type="vs:SimpleDataType">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 xsi:type="vs:SimpleDataType">integer</dataType></param></interface></capability><facility>Mercator Observatory</facility><instrument>HERMES ()</instrument><coverage><waveband>Optical</waveband></coverage><tableset><schema><name>hermes</name><title>HERMES Data Archive Portal</title><description>High resolution spectra from the HERMES spectrograph at the Flemish
Mercator Telescope, operated by KU Leuven at the Roque de Los
Muchachos Observatory on the island of La Palma. HERMES (High
Efficiency and Resolution Mercator Echelle Spectrograph) covers the
377-900 nm wavelength range in one fixed setting.</description><table><name>hermes.data</name><description>High resolution spectra from the HERMES spectrograph at the Flemish
Mercator Telescope, operated by KU Leuven at the Roque de Los
Muchachos Observatory on the island of La Palma. HERMES (High
Efficiency and Resolution Mercator Echelle Spectrograph) covers the
377-900 nm wavelength range in one fixed setting.</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>indexed</flag><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><ucd>meta.code.mime</ucd><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 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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="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_redshift</name><description>Redshift of target object</description><ucd>src.redshift</ucd><utype>ssa:Target.Redshift</utype><dataType 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="2" extendedType="point" xsi:type="vs:VOTableType">double</dataType><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 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>ssa:Char.SpatialAxis.Coverage.Location.Value</utype><dataType arraysize="2" extendedType="point" xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>ssa_aperture</name><description>Angular diameter of 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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>instr.bandwidth</ucd><utype>ssa:Char.SpectralAxis.Coverage.Bounds.Extent</utype><dataType 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 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 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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xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_spectralucd</name><description>UCD of the spectral column in the spectra served; when you have wavelengths, use em.wl for vacuum wavelengths, em.wl;obs.atmos for air wavelengths.</description><ucd>meta.ucd</ucd><utype>ssa:Char.SpectralAxis.Ucd</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType></column><column><name>ssa_spectralunit</name><description>Unit of the spectral column</description><ucd>meta.unit</ucd><utype>ssa:Char.SpectralAxis.Unit</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType></column><column><name>ssa_fluxsi</name><description>Flux/magnitude conversion factor in Osuna-Salgado convention</description><utype>ssa:Dataset.FluxSI</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_fluxucd</name><description>UCD of the flux 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xsi:type="vs:VOTableType">unicodeChar</dataType><flag>nullable</flag></column><column><name>ssa_collection</name><description>A short handle naming the collection this spectrum belongs to.</description><utype>ssa:DataID.Collection</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_instrument</name><description>Instrument or code used to produce these datasets</description><ucd>meta.id;instr</ucd><utype>ssa:DataID.Instrument</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_datasource</name><description>Method of generation for the data (one of survey, pointed, theory, custom, artificial).</description><utype>ssa:DataID.DataSource</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_creationtype</name><description>Process used to produce the data (archival, cutout, filtered, mosaic, projection, spectralExtraction, or catalogExtraction)</description><utype>ssa:DataID.CreationType</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_reference</name><description>URL or bibcode of a publication describing this data.</description><ucd>meta.bib.bibcode</ucd><utype>ssa:Curation.Reference</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_fluxstaterror</name><description>Statistical error in flux</description><ucd>stat.error;phot.flux.density;em</ucd><utype>ssa:Char.FluxAxis.Accuracy.StatError</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_fluxsyserror</name><description>Systematic error in flux</description><ucd>stat.error.sys;phot.flux.density;em</ucd><utype>ssa:Char.FluxAxis.Accuracy.SysError</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_fluxcalib</name><description>Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED).</description><utype>ssa:Char.FluxAxis.Calibration</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_binsize</name><description>Bin size in wavelength</description><unit>m</unit><ucd>em.wl;spect.binSize</ucd><utype>ssa:Char.SpectralAxis.Accuracy.BinSize</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_spectstaterror</name><description>Statistical error in wavelength</description><unit>m</unit><ucd>stat.error;em</ucd><utype>ssa:Char.SpectralAxis.Accuracy.StatError</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_spectsyserror</name><description>Systematic error in wavelength</description><unit>m</unit><ucd>stat.error.sys;em</ucd><utype>ssa:Char.SpectralAxis.Accuracy.SysError</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_speccalib</name><description>Type of wavelength calibration</description><ucd>meta.code.qual</ucd><utype>ssa:Char.SpectralAxis.Calibration</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_specres</name><description>Resolution (in meters of wavelength) on the spectral axis</description><unit>m</unit><ucd>spect.resolution;em.wl</ucd><utype>ssa:Char.SpectralAxis.Resolution</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_spaceerror</name><description>Statistical error in position</description><unit>deg</unit><ucd>stat.error;pos.eq</ucd><utype>ssa:Char.SpatialAxis.Accuracy.StatError</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>ssa_spacecalib</name><description>Type of calibration in spatial coordinates</description><ucd>meta.code.qual</ucd><utype>ssa:Char.SpatialAxis.Calibration</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>ssa_spaceres</name><description>Spatial resolution of data</description><unit>deg</unit><ucd>pos.angResolution</ucd><utype>ssa:Char.SpatialAxis.Resolution</utype><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>unique_seqno</name><description>The unique sequence number for this observation, counting every exposure made with this instrument; this number remains constant over multiple reduction steps for the same file.</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>ssa_region</name><description>Rough coverage based on location and aperture.</description><ucd>pos.outline;obs.field</ucd><dataType arraysize="*" extendedType="polygon" xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>datalink</name><description>URL of datalink document for this spectrum (cutouts, different formats)</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>