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<adc:VO_Catalog_ADC xmlns:adc="http://adc.astro.umd.edu/dataset_054" xmlns:au="http://adc.astro.umd.edu/Units" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cat="http://www.ivoa.net/Catalog" xmlns:cha="http://www.ivoa.net/Characterization" xmlns:col="http://www.ivoa.net/Collection" xmlns:stc="http://www.ivoa.net/xml/STC/stc-v1.20" xmlns:r="http://www.ivoa.net/xml/STC/STCregion/v1.20" xmlns:crd="http://www.ivoa.net/xml/STC/STCcoords/v1.20" xmlns:h="http://www.ivoa.net/Provenance" xmlns:p="http://www.ivoa.net/Publications" xmlns:ppl="http://www.ivoa.net/People" xmlns:ucd="http://www.ivoa.net/UCD1+" xmlns:u="http://www.ivoa.net/Units" xmlns:q="http://www.ivoa.net/Quantity" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" cid="adc_1022A" name="Astrographic Catalogue: Alger zone" xsi:schemaLocation="http://adc.astro.umd.edu/dataset_054 dataset_054.xsd">
  <dc:identifier>1022A</dc:identifier>
  <h:provenance provenanceId="history_1022A">
    <h:creation>
      <h:creator>
        <ppl:person>
          <ppl:firstName>Koichi</ppl:firstName>
          <ppl:lastName>Nakajima</ppl:lastName>
          <ppl:institution>
            <ppl:name>CDS</ppl:name>
          </ppl:institution>
        </ppl:person>
      </h:creator>
      <h:creator>
        <ppl:person>
          <ppl:firstName>Julie</ppl:firstName>
          <ppl:middleName>Anne</ppl:middleName>
          <ppl:lastName>Watko</ppl:lastName>
          <ppl:institution>
            <ppl:name>SSDOO/ADC</ppl:name>
          </ppl:institution>
        </ppl:person>
      </h:creator>
      <stc:date>1996-02-26</stc:date>
    </h:creation>
    <h:revisions>
      <h:revision>
        <h:revisor>
          <ppl:person>
            <ppl:lastName>UNKNOWN</ppl:lastName>
          </ppl:person>
        </h:revisor>
        <stc:date>????-??-??</stc:date>
        <p:note><![CDATA[Originally the Paris zone was archived as I/22, and the Alger zone was included in I/21. However, the data format of Alger zone is different from others and the data have some incompleteness, and we rearranged them, separating the Alger zone data as I/22A.]]></p:note>
      </h:revision>
      <h:revision>
        <h:revisor>
          <ppl:team>
            <ppl:name>ADC staff</ppl:name>
            <ppl:institution>
              <ppl:name>ADC</ppl:name>
              <ppl:address>
                <ppl:street>Code 630, Goddard Space Flight Center/NASA</ppl:street>
                <ppl:postcode>20771</ppl:postcode>
                <ppl:city>Greenbelt</ppl:city>
                <ppl:state>Maryland</ppl:state>
                <ppl:country>United States of America</ppl:country>
              </ppl:address>
            </ppl:institution>
          </ppl:team>
          <p:note><![CDATA[Revision using version 1.36 of ADC's legacy conversion pipeline]]></p:note>
        </h:revisor>
        <stc:date>2002-05-28</stc:date>
        <p:note><![CDATA[XML generated from CDS/ADC ReadMe document and associated data files using txt2ML Rules Set: 1.56]]></p:note>
      </h:revision>
      <h:revision>
        <h:revisor>
          <ppl:team>
            <ppl:name>UMd-ADC staff</ppl:name>
            <ppl:institution>
              <ppl:name>UMd Astronomical Data Center</ppl:name>
              <ppl:address>
                <ppl:street>Department of Astronomy, University of Maryland</ppl:street>
                <ppl:postcode>20742</ppl:postcode>
                <ppl:city>College Park</ppl:city>
                <ppl:state>Maryland</ppl:state>
                <ppl:country>United States of America</ppl:country>
              </ppl:address>
              <ppl:email>thomas@astro.umd.edu</ppl:email>
              <ppl:url>http://archive.astro.umd.edu/archive</ppl:url>
            </ppl:institution>
          </ppl:team>
          <p:note><![CDATA[Revision using version 0.16 of the quantity/dataset transform pipeline.]]></p:note>
        </h:revisor>
        <stc:date>2005-09-30T05:02:40-04:00</stc:date>
        <p:note><![CDATA[This version of the document has unverified coordinate system information. Use at your ownrisk!]]></p:note>
      </h:revision>
    </h:revisions>
  </h:provenance>
  <p:references referencesId="ref_1022A">
    <p:reference referenceId="srf1" type="source">
      <dc:title>Astrographic Catalogue: Alger zone</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   The "Carte de Ciel" (or "Astrographic Catalogue") is a catalogue of star
   positions and magnitudes, determined on the photographic plates taken
   by the normal astrographs which are installed in observatories of various
   latitudes, as a world-wide astronomical project (see Eichhorn, 1974, p279).
   The catalogue is divided into 22 declination zones, each of which is
   assigned to each observatory, e.g., a zone from +18 to +24 degrees is to
   Paris observatory.]]></p:para>
        <p:para><![CDATA[   Each observatory has taken photographs of 2 deg x 2 deg area in and covering
   each zone, measured the X,Y coordinates of star images on the photographic
   plates, and published the results as the printed catalogues.
   The present catalogue is the results of reduction of these X,Y coordinates
   into right ascension and declination values, for declination zones of +05
   to +31, by using AGK2/3 catalogue as the reference.]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>P</ppl:initial>
          <ppl:lastName>Lacroute</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>A</ppl:initial>
          <ppl:lastName>Valbousquet</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:journal>
        <p:name>Bull. Inform. CDS</p:name>
        <p:volume>6</p:volume>
        <p:pageno>38</p:pageno>
        <stc:date>1974-??-??</stc:date>
        <p:bibcode>1974BICDS...6...38L</p:bibcode>
      </p:journal>
    </p:reference>
    <p:reference referenceId="srf2" type="source">
      <dc:title>Astrographic Catalogue: Alger zone</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   The "Carte de Ciel" (or "Astrographic Catalogue") is a catalogue of star
   positions and magnitudes, determined on the photographic plates taken
   by the normal astrographs which are installed in observatories of various
   latitudes, as a world-wide astronomical project (see Eichhorn, 1974, p279).
   The catalogue is divided into 22 declination zones, each of which is
   assigned to each observatory, e.g., a zone from +18 to +24 degrees is to
   Paris observatory.]]></p:para>
        <p:para><![CDATA[   Each observatory has taken photographs of 2 deg x 2 deg area in and covering
   each zone, measured the X,Y coordinates of star images on the photographic
   plates, and published the results as the printed catalogues.
   The present catalogue is the results of reduction of these X,Y coordinates
   into right ascension and declination values, for declination zones of +05
   to +31, by using AGK2/3 catalogue as the reference.]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>A</ppl:initial>
          <ppl:lastName>Valbousquet</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:journal>
        <p:name>Bull. Inform. CDS</p:name>
        <p:volume>13</p:volume>
        <p:pageno>2</p:pageno>
        <stc:date>1977-??-??</stc:date>
        <p:bibcode>1977BICDS..13....2V</p:bibcode>
      </p:journal>
    </p:reference>
    <p:reference referenceId="srf3" type="source">
      <dc:title>Astrographic Catalogue: Alger zone</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   The "Carte de Ciel" (or "Astrographic Catalogue") is a catalogue of star
   positions and magnitudes, determined on the photographic plates taken
   by the normal astrographs which are installed in observatories of various
   latitudes, as a world-wide astronomical project (see Eichhorn, 1974, p279).
   The catalogue is divided into 22 declination zones, each of which is
   assigned to each observatory, e.g., a zone from +18 to +24 degrees is to
   Paris observatory.]]></p:para>
        <p:para><![CDATA[   Each observatory has taken photographs of 2 deg x 2 deg area in and covering
   each zone, measured the X,Y coordinates of star images on the photographic
   plates, and published the results as the printed catalogues.
   The present catalogue is the results of reduction of these X,Y coordinates
   into right ascension and declination values, for declination zones of +05
   to +31, by using AGK2/3 catalogue as the reference.]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>P</ppl:initial>
          <ppl:lastName>Lacroute</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:journal>
        <p:name>Bull. Inform. CDS</p:name>
        <p:volume>21</p:volume>
        <p:pageno>2</p:pageno>
        <stc:date>1981-??-??</stc:date>
        <p:bibcode>1981BICDS..21....2L</p:bibcode>
      </p:journal>
    </p:reference>
    <adc:reference referenceId="seeAlso_1_1" type="seeAlso">
      <dc:title>Zones +05 to +31 (Alger zones) (Lacroute and Valbousquet, 1974)</dc:title>
      <p:author>
        <ppl:person>
          <ppl:lastName>Lacroute</ppl:lastName>
        </ppl:person>
      </p:author>
      <adc:holding role="similar">I/21: Zones +05 to +31 (Alger zones) (Lacroute and Valbousquet, 1974)<adc:altname namespace="http://adc.astro.umd.edu">1021</adc:altname>
</adc:holding>
    </adc:reference>
    <adc:reference referenceId="seeAlso_1_2" type="seeAlso">
      <dc:title>Zones -02 to +31 degrees of AC (Roeser, 1990) (RA and DE files)</dc:title>
      <p:author>
        <ppl:person>
          <ppl:lastName>Roeser</ppl:lastName>
        </ppl:person>
      </p:author>
      <adc:holding role="similar">I/154: Zones -02 to +31 degrees of AC (Roeser, 1990) (RA and DE files)<adc:altname namespace="http://adc.astro.umd.edu">1154</adc:altname>
</adc:holding>
    </adc:reference>
    <adc:reference referenceId="seeAlso_1_3" type="seeAlso">
      <dc:title>Zones -02 to +31 degrees of AC (Roeser, 1990) (X and Y files)</dc:title>
      <p:author>
        <ppl:person>
          <ppl:lastName>X</ppl:lastName>
        </ppl:person>
      </p:author>
      <adc:holding role="similar">I/155: Zones -02 to +31 degrees of AC (Roeser, 1990) (X and Y files)<adc:altname namespace="http://adc.astro.umd.edu">1155</adc:altname>
</adc:holding>
    </adc:reference>
    <adc:reference referenceId="seeAlso_1_4" type="seeAlso">
      <dc:title>Astrographic Catalog Reference Stars (ACRS) (Corbin+ 1991)</dc:title>
      <p:author>
        <ppl:person>
          <ppl:lastName>Corbin</ppl:lastName>
        </ppl:person>
      </p:author>
      <ppl:et_al/>
      <adc:holding role="similar">I/171: Astrographic Catalog Reference Stars (ACRS) (Corbin+ 1991)<adc:altname namespace="http://adc.astro.umd.edu">1171</adc:altname>
</adc:holding>
    </adc:reference>
    <p:reference referenceId="rrf1" type="related">
      <dc:title>Astronomy of star positions - A critical investigation of star catalogues, the methods of their construction and their purpose</dc:title>
      <p:author>
        <ppl:person>
          <ppl:firstName>Heinrich</ppl:firstName>
          <ppl:lastName>Eichhorn</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:book>
        <p:publisher>Ungar</p:publisher>
        <p:city>New York</p:city>
        <stc:date>1974-??-??</stc:date>
      </p:book>
    </p:reference>
  </p:references>
  <adc:data>
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      <dc:identifier>1022A_catalog</dc:identifier>
      <h:refProvenance provenanceIdRef="history_1022A"/>
      <p:refReferences referencesIdRef="ref_1022A"/>
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            <q:external xlink:href="1022A_catalog.dat"/>
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              <cha:max>4</cha:max>
            </cha:limits>
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            <au:units name="deg">
              <au:unit>deg</au:unit>
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            <q:integer noDataValue="-99" width="3" type="decimal"/>
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          </col:property>
          <col:property name="PLATE" description="*[-180/180] plate identifier" qid="catalog_PLATE">
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              <q:refQuantity qidRef="catalog_PLATE"/>
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              <cha:max>180</cha:max>
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              <q:refQuantity qidRef="catalog_STAR"/>
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              <stc:TimeFrame>
                <stc:TimeScale>LST</stc:TimeScale>
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                <stc:FK4>
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                    <stc:units>yr</stc:units>
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                  </stc:Equinox>
                </stc:FK4>
                <stc:BARYCENTER/>
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          </col:property>
          <col:property name="DEmas" description="[-324000000/324000000] declination  (B1950)" qid="catalog_DEmas">
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              <cha:min>-4827036</cha:min>
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          </col:property>
          <col:property name="EPOCH" description="[0/20000] plate epoch from 180000" qid="catalog_EPOCH">
            <cha:limits>
              <q:refQuantity qidRef="catalog_EPOCH"/>
              <cha:min>9100</cha:min>
              <cha:max>11189</cha:max>
            </cha:limits>
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            <au:units name="ca">
              <au:unit>ca</au:unit>
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          </col:property>
          <col:property name="mB" description="[-99/999] photographic magnitude" qid="catalog_mB">
            <cha:limits>
              <q:refQuantity qidRef="catalog_mB"/>
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              <cha:max>793</cha:max>
            </cha:limits>
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            <au:units name="dmag">
              <au:unit>dmag</au:unit>
            </au:units>
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          </col:property>
          <col:property name="X" description="[-9999999/9999999] X coordinate on the plate" qid="catalog_X">
            <cha:limits>
              <q:refQuantity qidRef="catalog_X"/>
              <cha:min>-781718</cha:min>
              <cha:max>882280</cha:max>
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          </col:property>
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            <cha:limits>
              <q:refQuantity qidRef="catalog_Y"/>
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              <cha:max>819988</cha:max>
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          </col:property>
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          </col:property>
          <col:property name="AGK3N" description="[1/9999]? AGK3 number : star number" qid="catalog_AGK3N">
            <cha:limits>
              <q:refQuantity qidRef="catalog_AGK3N"/>
              <cha:min>0001</cha:min>
              <cha:max>3433</cha:max>
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