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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>EXOSAT Master Observation List</title>
  <shortName>EXOSAT</shortName>
  <identifier>ivo://nasa.heasarc/exomaster</identifier>
  <curation>
    <publisher ivo-id="ivo://nasa.heasarc/ASD">NASA/GSFC HEASARC</publisher>
    <creator>
      <name>HEASARC</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>Observation</subject>
    <description>
      The EXOMASTER database contains the EXOSAT observation log. This is a complete list of all EXOSAT observations, observing modes, and principal investigators. The log can be used to find out which targets were observed by EXOSAT, who observed them and the observation configuration. In addition this database can also be used to check the availability of the FOT (Final Observation Tape) files (the original raw data files) and their reformatted FITS files. This database table was originally created in September/October, 1997. The HEASARC revised this database table in August, 2006, in order to fix the equatorial coordinates (which were in the wrong equinox) and to rename or convert some of the time-related fields to better conform with current HEASARC practices. This is a service provided by NASA HEASARC .
    </description>
    <source format=""/>
    <referenceURL>https://heasarc.gsfc.nasa.gov/W3Browse/all/exomaster.html</referenceURL>
    <type>Archive</type>
    <contentLevel>Research</contentLevel>
    <relationship>
      <relationshipType>
        served-by
      </relationshipType>
      <relatedResource ivo-id="ivo://nasa.heasarc/services/xamin">
        HEASARC TAP
      </relatedResource>
    </relationship>
  </content>
  <capability standardID="ivo://ivoa.net/std/ConeSearch" xsi:type="cs:ConeSearch">
    <interface role="std" xsi:type="vs:ParamHTTP">
      <accessURL use="base">
        https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&amp;table=exomaster&amp;
      </accessURL>
      <queryType>GET</queryType>
      <resultType>text/xml</resultType>
    </interface>
    <maxSR>180</maxSR>
    <maxRecords>99999</maxRecords>
    <verbosity>true</verbosity>
    <testQuery>
      <ra>10.08676653</ra>
      <dec>-79.19393894</dec>
      <sr>1</sr>
    </testQuery>
  </capability>
  <capability standardID="ivo://ivoa.net/std/TAP#aux">
    <interface xsi:type="vs:ParamHTTP" role="std">
      <accessURL use="base">
        https://heasarc.gsfc.nasa.gov/xamin/vo/tap
      </accessURL>
    </interface>
  </capability>
  <capability>
    <interface xsi:type="vs:ParamHTTP">
      <accessURL use="base">
        https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=exomaster
      </accessURL>
      <queryType>GET</queryType>
      <resultType>text/xml</resultType>
    </interface>
  </capability>
  <capability>
    <interface xsi:type="vr:WebBrowser">
      <accessURL use="full">
        https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_exomaster&amp;Action=More+Options&amp;Action=Parameter+Search&amp;ConeAdd=1
      </accessURL>
    </interface>
  </capability>
  <facility>EXOSAT</facility>
  <coverage>
    <stc:STCResourceProfile>
      <stc:AstroCoordSystem xlink:type="simple" xlink:href="ivo://STClib/CoordSys#UTC-ICRS-TOPO" id="_exomaster_UTC-ICRS-TOPO060c1908d6afa2eb6ad1db5f2d084b94"/>
      <stc:AstroCoords coord_system_id="_exomaster_UTC-ICRS-TOPO060c1908d6afa2eb6ad1db5f2d084b94">
        <stc:Position1D>
          
          <stc:Size pos_unit="deg">
            1
          </stc:Size>
        </stc:Position1D>
      </stc:AstroCoords>
      <stc:AstroCoordArea coord_system_id="_exomaster_UTC-ICRS-TOPO060c1908d6afa2eb6ad1db5f2d084b94">
        <stc:AllSky/>
      </stc:AstroCoordArea>
    </stc:STCResourceProfile>
    <waveband>X-ray</waveband>
  </coverage>
  <tableset xsi:type="vs:TableSet">
    <schema>
      <name>public</name>
      <table>
        <name>exomaster</name>
        <description>
          EXOSAT Master Observation List
        </description>
        <column>
          <name>name</name>
          <description>
            Target Designation
          </description>
          <ucd>
            meta.id;meta.main
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>ra</name>
          <description>
            Right Ascension of EXOSAT Pointing
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.ra;meta.main
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>dec</name>
          <description>
            Declination of EXOSAT Pointing
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.dec;meta.main
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>"time"</name>
          <description>
            Observation Start Time
          </description>
          <unit>mjd</unit>
          <ucd>
            time.start;obs
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>end_time</name>
          <description>
            Observation End Time
          </description>
          <unit>mjd</unit>
          <ucd>
            time.end;obs
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>sequence_number</name>
          <description>
            Observation Sequence Number
          </description>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>fotid</name>
          <description>
            FOT Identifier
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>proposal_type</name>
          <description>
            Proposal Type, Based on Object Class
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>instrument</name>
          <description>
            LE1, LE2, ME or GSPC
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>"__x_ra_dec"</name>
          <description>
            System unit vector column
          </description>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>"__y_ra_dec"</name>
          <description>
            System unit vector column
          </description>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>"__z_ra_dec"</name>
          <description>
            System unit vector column
          </description>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>"__row"</name>
          <description>
            System index column
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>payload_status</name>
          <description>
            Instrument Mode Information
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>footnotes</name>
          <description>
            Footnotes
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>status</name>
          <description>
            FOT-&gt;FITS Process: 0=good,-1=unavailable,1=some errors
          </description>
          <ucd>
            meta.code.status
          </ucd>
          <dataType xsi:type="vs:VOTableType">short</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>lii</name>
          <description>
            Galactic Longitude of EXOSAT Pointing
          </description>
          <unit>degree</unit>
          <ucd>
            pos.galactic.lon
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>fot_time</name>
          <description>
            Start Time of Observation According to FOT
          </description>
          <unit>mjd</unit>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>file_size</name>
          <description>
            File Size (bytes)
          </description>
          <unit>byte</unit>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>bii</name>
          <description>
            Galactic Latitude of EXOSAT Pointing
          </description>
          <unit>degree</unit>
          <ucd>
            pos.galactic.lat
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>errors</name>
          <description>
            Tape Errors During Transcription
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>orig_fot_start</name>
          <description>
            For Archive Request Submission
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>fits_dir</name>
          <description>
            FITS Raw Data Directory
          </description>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>argon_integration_time</name>
          <description>
            Argon Integration Time (ME)
          </description>
          <unit>s</unit>
          <dataType xsi:type="vs:VOTableType">float</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>channel_selection</name>
          <description>
            ME PHA Channel Selection
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>fot_end_time</name>
          <description>
            End Time of Observation According to FOT
          </description>
          <unit>mjd</unit>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>channel_compression</name>
          <description>
            Number of Channels Combined by OBC
          </description>
          <dataType xsi:type="vs:VOTableType">short</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>observer</name>
          <description>
            Principle Investigator for the Observation
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>orig_fot_end</name>
          <description>
            For Archive Request Submission
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>intensity_samp_interval</name>
          <description>
            Intensity Sample Interval (s)
          </description>
          <unit>s</unit>
          <dataType xsi:type="vs:VOTableType">float</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>comp_factor</name>
          <description>
            Compression Factor
          </description>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>file_name</name>
          <description>
            Name of Data Products File
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>nfiles</name>
          <description>
            Number of Files in .zoo
          </description>
          <dataType xsi:type="vs:VOTableType">short</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>shfstop</name>
          <description>
            SHF Key of Observation End Time
          </description>
          <unit>SHF</unit>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>directory</name>
          <description>
            Data Products Directory Path
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>obc_modes</name>
          <description>
            On-Board Computer Mode Info
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>proposal_code</name>
          <description>
            Proposal Code
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>esoc_trsc_time</name>
          <description>
            Date of ESOC Transcription
          </description>
          <unit>mjd</unit>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>file_bytes</name>
          <description>
            Number of Bytes of Each File
          </description>
          <unit>byte</unit>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>observer_code</name>
          <description>
            Observer Code
          </description>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>fotname</name>
          <description>
            Target Designation(s) from FOT
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>xenon_integration_time</name>
          <description>
            Xenon Integration Time (ME)
          </description>
          <unit>s</unit>
          <dataType xsi:type="vs:VOTableType">float</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>faino</name>
          <description>
            FAI Record Sequence Number
          </description>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>file_names</name>
          <description>
            File Names, e.g., EE5301, EE5302
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>target_number</name>
          <description>
            Unique Target Identifier
          </description>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>shfstart</name>
          <description>
            SHF Key of Observation Start Time
          </description>
          <unit>SHF</unit>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
      </table>
    </schema>
  </tableset>
</ri:Resource>