<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2018-09-08T06:47:55Z" status="active" updated="2025-07-16T13:21:56Z" version="1.2" xmlns:g-colstat="http://dc.g-vo.org/ColStats-1" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:sia="http://www.ivoa.net/xml/SIA/v1.1" 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:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://dc.g-vo.org/ColStats-1 http://vo.ari.uni-heidelberg.de/docs/schemata/Colstats.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface.xsd http://www.ivoa.net/xml/SIA/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/SIA.xsd http://www.ivoa.net/xml/VORegistry/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VORegistry.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>Digitized First Byurakan Survey (DFBS) Plate Scans</title><shortName>DFBS plates</shortName><identifier>ivo://padc.obspm.astro-m/dfbs/q/i</identifier><curation><publisher>Paris Astronomical Data Centre</publisher><creator><name>Markarian, B.E.</name></creator><creator><name>Lipovetski, V.A.</name></creator><creator><name>Stepanian, J.A.</name></creator><date role="Updated">2025-07-16T13:19:47Z</date><contact><name>PADC support team</name><address>77 av. Denfert Rochereau, 75014 Paris, FRANCE</address><email>vo.paris@obspm.fr</email><telephone>0033140512082</telephone></contact></curation><content><subject>surveys</subject><subject>active-galactic-nuclei</subject><subject>spectroscopy</subject><description>First Byurakan survey plate scan service</description><source format="bibcode">2007A&amp;A...464.1177M</source><referenceURL>http://voparis-tap-astro-m.obspm.fr/dfbs/q/i/info</referenceURL><type>Archive</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://padc.obspm.astro-m/__system__/obscore/obscore">PADC TAP Server on voparis-tap-astro-m.obspm.fr Obscore</relatedResource><relatedResource ivo-id="ivo://padc.obspm.astro-m/tap">PADC TAP Server on voparis-tap-astro-m.obspm.fr TAP service</relatedResource></relationship></content><capability standardID="ivo://ivoa.net/std/sia" xsi:type="sia:SimpleImageAccess"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="base">http://voparis-tap-astro-m.obspm.fr/dfbs/q/i/siap.xml?</accessURL><queryType>GET</queryType><resultType>application/x-votable+xml</resultType><param std="true"><name>POS</name><description>ICRS Position, RA,DEC decimal degrees (e.g., 234.234,-32.46)</description><ucd>pos.eq</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>SIZE</name><description>Size in decimal degrees (e.g., 0.2 or 1,0.1)</description><unit>deg</unit><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>INTERSECT</name><description>Relation of image and specified Region of Interest.</description><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>FORMAT</name><description>Requested format of the image data</description><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="false"><name>plate</name><description>Identifier (plate number) for the DFBS plate.</description><ucd>meta.id</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>responseformat</name><description>File format requested for output.</description><ucd>meta.code.mime</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>maxrec</name><description>Maximum number of records returned. 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><imageServiceType>Pointed</imageServiceType><maxRecords>1000000</maxRecords><testQuery><pos><long>28.394</long><lat>19.222</lat></pos><size><long>0.1</long><lat>0.1</lat></size></testQuery></capability><capability><interface xsi:type="vr:WebBrowser"><accessURL use="full">http://voparis-tap-astro-m.obspm.fr/dfbs/q/i/form</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#capabilities"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">http://voparis-tap-astro-m.obspm.fr/dfbs/q/i/capabilities</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#availability"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="full">http://voparis-tap-astro-m.obspm.fr/dfbs/q/i/availability</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/VOSI#tables"><interface role="std" version="1.1" xsi:type="vs:ParamHTTP"><accessURL use="full">http://voparis-tap-astro-m.obspm.fr/dfbs/q/i/tableMetadata</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface role="std" version="1.1" xsi:type="vs:ParamHTTP"><accessURL use="full">http://voparis-tap-astro-m.obspm.fr/tap</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/SODA#sync-1.0"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="base">http://voparis-tap-astro-m.obspm.fr/dfbs/q/dl/dlget</accessURL></interface></capability><capability standardID="ivo://ivoa.net/std/DataLink#links-1.1"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="base">http://voparis-tap-astro-m.obspm.fr/dfbs/q/dl/dlmeta</accessURL><queryType>GET</queryType><resultType>application/x-votable+xml;content=datalink</resultType><param std="true"><name>ID</name><description>The publisher DID of the dataset of interest</description><ucd>meta.id;meta.main</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>responseformat</name><description>File format requested for output.</description><ucd>meta.code.mime</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>maxrec</name><description>Maximum number of records returned. 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>Byurakan Astrophysical Observatory BAO</facility><instrument>Byurakan 1m Schmidt</instrument><coverage><spatial>0/1-2 1/0,17-19,22,25-27
2/6,8-10,15,48-49,52-54,58-59,67,85,99,117,120,122-123,126-127,141,143,159,175,191
3/18,21,23,29,31,44-46,48-50,53-55,200-201,205,220-221,227,230,250-251,253-255,261-263,265-267,330-331,334,348-349,351,370,373,375-376,381,383,391,395,465,486,498-499,502-503,542-543,569-571,630-631,635,695,699,757-759,761,763</spatial><temporal>40383 44374</temporal><footprint ivo-id="ivo://ivoa.net/std/moc">http://voparis-tap-astro-m.obspm.fr/dfbs/q/i/coverage</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>dfbsplates</name><title>Digitized First Byurakan Survey (DFBS) Plate Scans</title><description>
The First Byurakan Survey (FBS) is the largest and the first systematic
objective prism survey of the extragalactic sky. It covers 17,000 sq.deg.
in the Northern sky together with a high galactic latitudes region in the
Southern sky.   This service serves the scanned objective prism images
and offers SODA-based cutouts.</description><table type="output"><name>output</name><description>First Byurakan survey plate scan service</description><column><name>dlurl</name><description>URL of a datalink document for the dataset (cutouts, different formats, etc)</description><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</ucd><utype>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>yr</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>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>Access.Size</utype><dataType xsi:type="vs:VOTableType">long</dataType><flag>nullable</flag></column><column><name>centeralpha</name><description>Approximate center of image, RA</description><unit>deg</unit><ucd>pos.eq.ra</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>centerdelta</name><description>Approximate center of image, Dec</description><unit>deg</unit><ucd>pos.eq.dec</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>imagetitle</name><description>Synthetic name of the image</description><ucd>meta.title</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>instid</name><description>Identifier of the originating instrument</description><ucd>meta.id;instr</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>dateobs</name><description>Epoch at midpoint of observation</description><unit>d</unit><ucd>time;obs.exposure</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>naxes</name><description>Number of axes in data</description><ucd>pos.wcs.naxes</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>pixelsize</name><description>Number of pixels along each of the axes</description><unit>pixel</unit><ucd>pos.wcs.naxis</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>pixelscale</name><description>The pixel scale on each image axis</description><unit>deg/pixel</unit><ucd>pos.wcs.scale</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>refframe</name><description>Coordinate system reference frame</description><ucd>pos.frame</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>wcs_equinox</name><description>Equinox of the given coordinates</description><unit>yr</unit><ucd>time.equinox</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>wcs_projection</name><description>FITS WCS projection type</description><ucd>pos.wcs.ctype</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>wcs_refpixel</name><description>WCS reference pixel</description><unit>pixel</unit><ucd>pos.wcs.crpix</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>wcs_refvalues</name><description>World coordinates at WCS reference pixel</description><unit>deg</unit><ucd>pos.wcs.crval</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>wcs_cdmatrix</name><description>FITS WCS CDij matrix</description><unit>deg/pixel</unit><ucd>pos.wcs.cdmatrix</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>bandpassid</name><description>Free-form name of the bandpass used</description><ucd>instr.bandpass</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>bandpassunit</name><description>Unit of bandpass specifications (always m).</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>bandpassrefval</name><description>Characteristic quantity for the bandpass of the image</description><unit>m</unit><ucd>instr.bandpass;stat.median</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>bandpasshi</name><description>Upper limit of the bandpass (in BandPass_Unit units)</description><unit>m</unit><ucd>instr.bandpass;stat.max</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>bandpasslo</name><description>Lower limit of the bandpass (in BandPass_Unit units)</description><unit>m</unit><ucd>instr.bandpass;stat.min</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>pixflags</name><description>Flags specifying the processing done (C-original; F-resampled; Z-fluxes valid; X-not resampled; V-for display only</description><ucd>meta.code</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>coverage</name><description>Field covered by the image</description><unit>deg</unit><dataType arraysize="*" extendedType="polygon" xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>plate</name><description>Identifier (plate number) for the DFBS plate.</description><ucd>meta.id</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>exptime</name><description>Exposure time.</description><unit>s</unit><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>publisher_did</name><description>Dataset identifier assigned by the publisher.</description><ucd>meta.ref.uri;meta.curation</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>