<?xml version="1.0" encoding="UTF-8"?>
<VOResource
  xmlns="http://www.ivoa.net/xml/VOResource/v0.9"
  xmlns:vr="http://www.ivoa.net/xml/VOResource/v0.9"
  xmlns:vs="http://www.ivoa.net/xml/VODataService/v0.4"
  xmlns:sia="http://www.ivoa.net/xml/SIA/v0.6"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

  <!-- Describe the ADIL SIA service -->
  <vs:TabularSkyService>
    <Identifier>
      <AuthorityID>adil.ncsa.uiuc.edu</AuthorityID>
      <ResourceKey>sia</ResourceKey>
    </Identifier>
    <Title>NCSA Astronomy Digital Image Library Simple Image Access</Title>
    <ShortName>ADIL</ShortName>
    <Summary>
      <Description>
        This Web page allows users to interactively search the contents
        of the ADIL.
      </Description>
      <ReferenceURL>http://adil.ncsa.uiuc.edu/</ReferenceURL>
    </Summary>
    <Type>Archive</Type>
    <RelatedResource>
       <Relationship>service-for</Relationship>
       <RelatedTo>
          <Identifier>
            <AuthorityID>adil.ncsa.uiuc.edu</AuthorityID>
            <ResourceKey>ADIL</ResourceKey>
          </Identifier>
	  <Title>NCSA Astronomy Digital Image Library</Title>
       </RelatedTo>
    </RelatedResource>
    <Curation>
      <Publisher>
    	 <Identifier>
    	   <AuthorityID>adil.ncsa.uiuc.edu</AuthorityID>
	   <ResourceKey>ADIL</ResourceKey>
    	 </Identifier>
         <Title>NCSA Astronomy Digital Image Library</Title>
      </Publisher>
      <Contact>
        <Name>Dr. Raymond Plante</Name>
	<Email>rplante@ncsa.uiuc.edu</Email>
      </Contact>
      <Date>2002-04-01</Date>
      <Creator>
        <Name>Dr. Raymond Plante</Name>
        <Logo>http://adil.ncsa.uiuc.edu/gifs/adilfooter.gif</Logo>
      </Creator>
      <Contributor>
        <Name>Damien Guillaume</Name>
      </Contributor>
    </Curation>
    <Subject>radio astronomy</Subject>
    <Subject>data repositories</Subject>
    <Subject>digital libraries</Subject>
    <Subject>grid-based processing</Subject>
    <ContentLevel>Research</ContentLevel>
    <ContentLevel>University</ContentLevel>
    <ContentLevel>Community College</ContentLevel>

    <!-- 
         This describes the SIA capabilities: SimpleImageAccess is used instead
         of the generic Capability.  Note how the default namespace is changed
	 so that the special SIA metadata does not need namespace prefix
      -->
    <sia:SimpleImageAccess xmlns="http://www.ivoa.net/xml/SIA/v0.6">

       <vr:StandardURL>http://www.us-vo.org/news/simspec.html</vr:StandardURL>

       <!-- 
         -  not this ID is not standardized; for illustration purposes
         -  only 
         -->
       <vr:StandardID>
          <vr:AuthorityID>www.ivoa.net</vr:AuthorityID>
          <vr:ResourceKey>service/SIA/v1.0</vr:ResourceKey>
       </vr:StandardID>

       <ImageServiceType>Pointed</ImageServiceType>
       <MaxQueryRegionSize>
          <long>360.0</long>
          <lat>180.0</lat>
       </MaxQueryRegionSize>
       <MaxImageExtent>
          <long>360.0</long>
          <lat>180.0</lat>
       </MaxImageExtent>
       <MaxImageSize>
          <long>5000</long>
          <lat>5000</lat>
       </MaxImageSize>
       <MaxFileSize>100000000</MaxFileSize>
       <MaxRecords>5000</MaxRecords>
    </sia:SimpleImageAccess>

    <ParamHTTP qtype="GET" xmlns="http://www.ivoa.net/xml/VODataService/v0.4">
      <vr:Invocation>Extended</vr:Invocation>
      <vr:AccessURL use="base">http://adil.ncsa.uiuc.edu/vocone?</vr:AccessURL>
      <HTTPResults>text/xml</HTTPResults>
      <!-- 
           These are the supported input parameters taken from the ADIL
           SIA service's "Metadata" operation.  
         -->
      <Param>
        <vr:Name>POS</vr:Name>
        <vr:Description>Search Position in the form "ra,dec" where ra and dec are given in decimal degrees in the ICRS coordinate system.</vr:Description>
	<DataType arraysize="2">float</DataType>
        <Unit>degrees</Unit>
      </Param>
      <Param>
        <vr:Name>SIZE</vr:Name>
        <vr:Description>Size of search region in the RA and Dec. directions.</vr:Description>
	<DataType arraysize="2">float</DataType>
        <Unit>degrees</Unit>
      </Param>
      <Param>
        <vr:Name>FORMAT</vr:Name>
        <vr:Description>Requested format of images.</vr:Description>
	<DataType arraysize="*">char</DataType>
      </Param>
      <Param>
        <vr:Name>INTERSECT</vr:Name>
        <vr:Description>Choice of intersection of matched images with the region of interest.</vr:Description>
	<DataType arraysize="*">char</DataType>
      </Param>
      <Param>
        <vr:Name>FREQ</vr:Name>
        <vr:Description>Frequency of observation.</vr:Description>
	<DataType>float</DataType>
      </Param>
    </ParamHTTP>
    <vs:Coverage>
      <vs:Spatial>
        <vs:AllSky/>
	<vs:RegionOfRegard>180</vs:RegionOfRegard>
      </vs:Spatial>
      <vs:Spectral>
        <vs:Waveband>Radio</vs:Waveband>
        <vs:Waveband>Millimeter</vs:Waveband>
        <vs:Waveband>Infrared</vs:Waveband>
        <vs:Waveband>Optical</vs:Waveband>
        <vs:Waveband>UV</vs:Waveband>
      </vs:Spectral>
    </vs:Coverage>
    <Table xmlns="http://www.ivoa.net/xml/VODataService/v0.4">
       <Column>
          <vr:Name>Codename</vr:Name>
          <vr:Description>ADIL Image Identifier - Unique identifier for image, as assigned by the ADIL</vr:Description>
          <DataType arraysize="*">char</DataType>
       </Column>
       <Column>
          <vr:Name>Image Name</vr:Name>
          <vr:Description>Image Filename, as provide by author</vr:Description>
          <DataType arraysize="*">char</DataType>
       </Column>
       <Column>
          <vr:Name>Source Name</vr:Name>
          <vr:Description>Target Source of Image</vr:Description>
          <DataType arraysize="*">char</DataType>
          <UCD>ID_MAIN</UCD>
       </Column>
       <Column>
          <vr:Name>RA (Center)</vr:Name>
          <vr:Description>RA of Image Center (J2000)</vr:Description>
          <DataType>float</DataType>
          <Unit>degrees</Unit>
          <UCD>POS_EQ_RA_MAIN</UCD>
       </Column>
       <Column>
          <vr:Name>Dec (Center)</vr:Name>
          <vr:Description>Dec of Image Center (J2000)</vr:Description>
          <DataType>float</DataType>
          <Unit>degrees</Unit>
          <UCD>POS_EQ_DEC_MAIN</UCD>
       </Column>
       <Column>
          <vr:Name>Number of Axes</vr:Name>
          <vr:Description>Number of axes in the image</vr:Description>
          <DataType>int</DataType>
          <UCD>VOX:Image_Naxes</UCD>
       </Column>
       <Column>
          <vr:Name>Naxis</vr:Name>
          <vr:Description>Size of Image for each dimension</vr:Description>
          <DataType>int</DataType>
          <UCD>VOX:Image_Naxis</UCD>
       </Column>
       <Column>
          <vr:Name>Scale</vr:Name>
          <vr:Description>Scale of Image</vr:Description>
          <DataType>double</DataType>
          <Unit>degrees/pixel</Unit>
          <UCD>VOX:Image_Scale</UCD>
       </Column>
       <Column>
          <vr:Name>Image Format</vr:Name>
          <vr:Description>Format of Image</vr:Description>
          <DataType arraysize="*">char</DataType>
          <UCD>VOX:Image_Format</UCD>
       </Column>
       <Column>
          <vr:Name>Central Frequency</vr:Name>
          <vr:Description>Frequency at center of the image wavehand</vr:Description>
          <DataType>double</DataType>
          <Unit>Hz</Unit>
          <UCD>VOX:BandPass_RefValue</UCD>
       </Column>
       <Column>
          <vr:Name>Description</vr:Name>
          <vr:Description>Image Description</vr:Description>
          <DataType>char</DataType>
          <UCD>VOX:Image_Title</UCD>
       </Column>
       <Column>
          <vr:Name>Source Types</vr:Name>
          <vr:Description>a list of Source Types associated with this image</vr:Description>
          <DataType arraysize="*">char</DataType>
       </Column>
       <Column>
          <vr:Name>Telescopes</vr:Name>
          <vr:Description>a list of Telescopes used to create this image</vr:Description>
          <DataType arraysize="*">char</DataType>
          <UCD>TEL_ID</UCD>
       </Column>
       <Column>
          <vr:Name>Observation Epoch</vr:Name>
          <vr:Description>Upper bound on the epoch of the observations</vr:Description>
          <DataType>double</DataType>
          <Unit>years</Unit>
          <UCD>NVOX:Image_Epoch</UCD>
       </Column>
       <Column>
          <vr:Name>URL</vr:Name>
          <vr:Description>The URL for downloading image</vr:Description>
          <DataType arraysize="*">char</DataType>
          <UCD>VOX:Image_AccessReference</UCD>
       </Column>
    </Table>
  </vs:TabularSkyService>
</VOResource>

