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<ri:Resource created="2026-10-09T00:00:00" status="active" updated="2026-10-09T00:00:00" version="1.2" 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: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.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.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd http://www.w3.org/1999/xlink http://vo.ari.uni-heidelberg.de/docs/schemata/xlink.xsd" xsi:type="vs:CatalogService">
  <title>7C(G) 151-MHz Northern Galactic Plane Survey Catalog</title>
  <shortName>GP7C151MHZ</shortName>
  <identifier>ivo://nasa.heasarc/gp7c151mhz</identifier>
  <curation>
    <publisher ivo-id="ivo://nasa.heasarc/ASD">NASA/GSFC HEASARC</publisher>
    <creator>
      <name>Vessey, Green</name>
    </creator>
    <contributor/>
    <date>2026-10-09</date>
    <contact>
      <name>NASA/GSFC HEASARC help desk</name>
      <email>heasarc-vo at athena.gsfc.nasa.gov</email>
    </contact>
  </curation>
  <content>
    <subject>Survey Source</subject>
    <description>
      Results from a survey of the northern Galactic plane (at Declination &amp;gt;= 30&amp;lt;sup&amp;gt;o&amp;lt;/sup&amp;gt; at 151 MHz made with the Cambridge Low Frequency Synthesis Telescope (CLFST) are presented in this table. This survey was designated the 7C(G) - i.e. the Galactic portion of the then-ongoing 7C surveys. The 7C(G) covers the regions 80&amp;lt;sup&amp;gt;o&amp;lt;/sup&amp;gt; &amp;lt; l &amp;lt; 104&amp;lt;sup&amp;gt;o&amp;lt;/sup&amp;gt; and 126&amp;lt;sup&amp;gt;o&amp;lt;/sup&amp;gt; &amp;lt; l &amp;lt; 180&amp;lt;sup&amp;gt;o&amp;lt;/sup&amp;gt;, for |b| &amp;lt;= 5.5&amp;lt;sup&amp;gt;o&amp;lt;/sup&amp;gt;, and has some coverage to |b| ~ 9&amp;lt;sup&amp;gt;o&amp;lt;/sup&amp;gt;, with a resolution of ~70 x70 cosec{delta} arcsec&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt; (RA x Dec). The observations, data reduction and calibration of this survey are described in the reference paper, and the catalog of 6262 compact sources, with a completeness limit of ~ 0.25 Jy (250 mJy) over most of the survey region, is presented in this table. The catalog has an rms positional accuracy of better than 10 arcseconds, and the flux densities are tied to the scale of Roger, Bridle &amp;amp; Costain (1973, AJ, 78, 1030) with an accuracy of better than 10 per cent. This table was created by the HEASARC in October 2010 based on CDS table J/MNRAS/294/607 file 7cg.dat. This is a service provided by NASA HEASARC .
    </description>
    <source format="">
      1998MNRAS.294..607V
    </source>
    <referenceURL>https://heasarc.gsfc.nasa.gov/W3Browse/all/gp7c151mhz.html</referenceURL>
    <type>Catalog</type>
    <contentLevel>Research</contentLevel>
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    <maxSR>180</maxSR>
    <maxRecords>99999</maxRecords>
    <verbosity>true</verbosity>
    <testQuery>
      <ra>83.69522703</ra>
      <dec>24.28297129</dec>
      <sr>0.0833333333333333</sr>
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  <facility>RADIO CATALOG</facility>
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        <name>gp7c151mhz</name>
        <description>
          7C(G) 151-MHz Northern Galactic Plane Survey Catalog
        </description>
        <column>
          <name>name</name>
          <description>
            Source Designation
          </description>
          <ucd>
            meta.id;meta.main
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
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        <column>
          <name>ra</name>
          <description>
            Beam-Fitted Right Ascension
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.ra;meta.main
          </ucd>
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          <flag>
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        <column>
          <name>dec</name>
          <description>
            Beam-Fitted Declination
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.dec;meta.main
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          <flag>
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          <name>flux_151_mhz</name>
          <description>
            Beam-Fitted Flux Density (mJy/beam)
          </description>
          <unit>mJy/beam</unit>
          <ucd>
            phot.flux.density;em.radio.100-200MHz
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          <name>int_flux_151_mhz</name>
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            Integrated Flux Density (mJy)
          </description>
          <unit>mJy</unit>
          <ucd>
            phot.flux.density;em.radio.100-200MHz
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            nullable
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        <column>
          <name>snr</name>
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            Signal-to-Noise Ratio
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          <ucd>
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          </ucd>
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          <flag>
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        <column>
          <name>source_extent</name>
          <description>
            Extent of the Source Size in Units of the Local Beam Area
          </description>
          <unit>beam</unit>
          <ucd>
            phys.angSize;src
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>centroid_ra</name>
          <description>
            Centroid Position Right Ascension
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.ra
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>source_flag</name>
          <description>
            Flag [MC] Indicates Source Is M=Main or a C=Component Peak in the Integration
          </description>
          <ucd>
            meta.note
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>lii</name>
          <description>
            Beam-Fitted Galactic Longitude
          </description>
          <unit>degree</unit>
          <ucd>
            pos.galactic.lon
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>num_local_max</name>
          <description>
            Number of Individual Peaks That Where Included in the Flux Integration
          </description>
          <ucd>
            meta.number
          </ucd>
          <dataType xsi:type="vs:VOTableType">short</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>centroid_dec</name>
          <description>
            Centroid Position Declination
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.dec
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>bii</name>
          <description>
            Beam-Fitted Galactic Latitude
          </description>
          <unit>degree</unit>
          <ucd>
            pos.galactic.lat
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
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        <column>
          <name>"__x_ra_dec"</name>
          <description>
            System unit vector column
          </description>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
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        <column>
          <name>"__y_ra_dec"</name>
          <description>
            System unit vector column
          </description>
          <dataType xsi:type="vs:VOTableType">double</dataType>
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          <name>"__z_ra_dec"</name>
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            System unit vector column
          </description>
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        <column>
          <name>"__row"</name>
          <description>
            System index column
          </description>
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