<?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?>
<ri:Resource created="2026-04-10T00:00:00" status="active" updated="2026-04-10T00:00:00" version="1.2" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:sia11="http://www.ivoa.net/xml/SIA/v1.1" xmlns:ssap0="http://www.ivoa.net/xml/SSA/v1.1" 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/SIA/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/SIA.xsd http://www.ivoa.net/xml/SSA/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/SSA.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>Swift XRT Instrument Log</title>
  <shortName>SwiftXRT</shortName>
  <identifier>ivo://nasa.heasarc/swiftxrlog</identifier>
  <curation>
    <publisher ivo-id="ivo://nasa.heasarc/ASD">NASA/GSFC HEASARC</publisher>
    <creator>
      <name>Swift Project; HEASARC</name>
    </creator>
    <contributor/>
    <date>2026-04-10</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 XRT runs only one type of configuration mode/window in a given time interval. The table therefore contains for a given time interval a single record that describes one configuration. A new record is generated when the following is changing within an observation: new operating mode , new pointing mode, or new window configuration. This database table is generated by the Swift Data Center. During operation, it is updated on daily basis. This is a service provided by NASA HEASARC .
    </description>
    <source format=""/>
    <referenceURL>https://heasarc.gsfc.nasa.gov/W3Browse/all/swiftxrlog.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=swiftxrlog&amp;
      </accessURL>
      <queryType>GET</queryType>
      <resultType>text/xml</resultType>
    </interface>
    <maxSR>180</maxSR>
    <maxRecords>99999</maxRecords>
    <verbosity>true</verbosity>
    <testQuery>
      <ra>32.40865</ra>
      <dec>52.45183</dec>
      <sr>0.416666666666667</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=swiftxrlog
      </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_swiftxrlog&amp;Action=More+Options&amp;Action=Parameter+Search&amp;ConeAdd=1
      </accessURL>
    </interface>
  </capability>
    <capability standardID="ivo://ivoa.net/std/SSA" xsi:type="ssap0:SimpleSpectralAccess">
      <interface role="std" xsi:type="vs:ParamHTTP">
        <accessURL use="base">
          https://heasarc.gsfc.nasa.gov/xamin/vo/ssa?table=swiftxrlog&amp;
        </accessURL>
        <queryType>GET</queryType>
        <resultType>text/xml+votable</resultType>
      </interface>
      <complianceLevel>
        query
      </complianceLevel>
      <dataSource>
        pointed
      </dataSource>
      <creationType>
        archival
      </creationType>
      <supportedFrame>
        FK4
      </supportedFrame>
      <maxSearchRadius>
        360.0
      </maxSearchRadius>
      <maxRecords>500</maxRecords>
      <defaultMaxRecords>
        10000
      </defaultMaxRecords>
      <maxAperture>
        180
      </maxAperture>
      <maxFileSize>
        10000000
      </maxFileSize>
      <testQuery>
        <queryDataCmd>
          POS=32.40865,52.45183&amp;SIZE=0.416666666666667&amp;REQUEST=queryData
        </queryDataCmd>
      </testQuery>
    </capability>
    <capability standardID="ivo://ivoa.net/std/SIA" xsi:type="sia11:SimpleImageAccess">
      <interface role="std" xsi:type="vs:ParamHTTP">
        <accessURL use="base">
          https://heasarc.gsfc.nasa.gov/xamin/vo/sia?table=swiftxrlog&amp;
        </accessURL>
        <queryType>GET</queryType>
        <resultType>text/xml+votable</resultType>
        <param>
          <name>POS</name>
          <description>
            Search Position in the form "ra,dec" where ra and dec are given in decimal degrees in the ICRS coordinate system.
          </description>
          <unit>degrees</unit>
          <dataType>real</dataType>
        </param>
        <param>
          <name>SIZE</name>
          <description>
            Size of search region in the RA and Dec. directions.
          </description>
          <unit>degrees</unit>
          <dataType>real</dataType>
        </param>
        <param>
          <name>FORMAT</name>
          <description>
            Requested format of images.
          </description>
          <dataType>string</dataType>
        </param>
        <param>
          <name>CFRAME</name>
          <description>
            Coordinate frame: ICRS, FK5, FK4, GAL, ECL
          </description>
          <dataType>string</dataType>
        </param>
        <param>
          <name>EQUINOX</name>
          <description>
            Equinox used in FK4 or FK5 frames.
          </description>
          <dataType>real</dataType>
        </param>
      </interface>
      <imageServiceType>Cutout</imageServiceType>
      <maxQueryRegionSize>
        <long>360.0</long>
        <lat>180.0</lat>
      </maxQueryRegionSize>
      <maxImageExtent>
        <long>360.0</long>
        <lat>180.0</lat>
      </maxImageExtent>
      <maxImageSize>
        5000
      </maxImageSize>
      <maxFileSize>
        10000000
      </maxFileSize>
      <maxRecords>500</maxRecords>
      <testQuery>
        <pos>
          <long>32.40865</long>
          <lat>52.45183</lat>
        </pos>
        <size>
          <long>0.416666666666667</long>
          <lat>0.416666666666667</lat>
        </size>
      </testQuery>
    </capability>
    <capability standardID="ivo://ivoa.net/std/SIA#query-2.0" xsi:type="sia11:SimpleImageAccess">
      <interface role="std" version="2.0" xsi:type="vs:ParamHTTP">
        <accessURL use="base">
          https://heasarc.gsfc.nasa.gov/xamin/vo/sia?table=swiftxrlog&amp;
        </accessURL>
        <queryType>GET</queryType>
        <resultType>text/xml+votable</resultType>
        <param>
          <name>POS</name>
          <description>
            Search Position in the form "ra,dec" where ra and dec are given in decimal degrees in the ICRS coordinate system.
          </description>
        </param>
      </interface>
      <imageServiceType>Cutout</imageServiceType>
      <testQuery>
        <pos>
          <long>32.40865</long>
          <lat>52.45183</lat>
        </pos>
        <size>
          <long>0.416666666666667</long>
          <lat>0.416666666666667</lat>
        </size>
      </testQuery>
    </capability>
  <facility>SWIFT</facility>
  <coverage>
    <stc:STCResourceProfile>
      <stc:AstroCoordSystem xlink:type="simple" xlink:href="ivo://STClib/CoordSys#UTC-ICRS-TOPO" id="_swiftxrlog_UTC-ICRS-TOPO16ceb7d77afe177ba051a9bd744b48f5"/>
      <stc:AstroCoords coord_system_id="_swiftxrlog_UTC-ICRS-TOPO16ceb7d77afe177ba051a9bd744b48f5">
        <stc:Position1D>
          
          <stc:Size pos_unit="deg">
            0.416666666666667
          </stc:Size>
        </stc:Position1D>
      </stc:AstroCoords>
      <stc:AstroCoordArea coord_system_id="_swiftxrlog_UTC-ICRS-TOPO16ceb7d77afe177ba051a9bd744b48f5">
        <stc:AllSky/>
      </stc:AstroCoordArea>
    </stc:STCResourceProfile>
    <waveband>Gamma-ray</waveband>
  </coverage>
  <tableset xsi:type="vs:TableSet">
    <schema>
      <name>public</name>
      <table>
        <name>swiftxrlog</name>
        <description>
          Swift XRT Instrument Log
        </description>
        <column>
          <name>dec</name>
          <description>
            Declination
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.dec;meta.main
          </ucd>
          <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>orig_obs_segment</name>
          <description>
            Observation Segment as Originally Assigned
          </description>
          <ucd>
            meta.id
          </ucd>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>orig_obsid</name>
          <description>
            Observation Number as Originally Assigned (Orig_Target_ID + Orig_Obs_Segment)
          </description>
          <ucd>
            meta.id
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>filename</name>
          <description>
            Name of the File Containing the Data for this Interval
          </description>
          <ucd>
            meta.dataset;meta.file
          </ucd>
          <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>integration_time</name>
          <description>
            Integration Time (s)
          </description>
          <unit>s</unit>
          <ucd>
            time.interval
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>stop_time</name>
          <description>
            Stop Time of the Observation
          </description>
          <unit>mjd</unit>
          <ucd>
            time.end;obs
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>start_time</name>
          <description>
            Start Time of the Observation
          </description>
          <unit>mjd</unit>
          <ucd>
            time.start;obs
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>ccdtemp</name>
          <description>
            Average CCD Temperature within This Exposure
          </description>
          <unit>C</unit>
          <ucd>
            phys.temperature;instr
          </ucd>
          <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>bias</name>
          <description>
            Flag Indicates Bias Setting (Y or N)
          </description>
          <ucd>
            meta.code;instr.background
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>flipflop</name>
          <description>
            Flag to Id Part of the Flip-Flop (Y or N)
          </description>
          <ucd>
            meta.code;instr.setup
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</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>roll_angle</name>
          <description>
            Roll Angle (degree)
          </description>
          <unit>degree</unit>
          <ucd>
            instr.param;pos.posAng
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>target_id</name>
          <description>
            Unique Trigger Number with Any Degeneracy Removed
          </description>
          <ucd>
            meta.id;src
          </ucd>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>bii</name>
          <description>
            Galactic Latitude
          </description>
          <unit>degree</unit>
          <ucd>
            pos.galactic.lat
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>orig_target_id</name>
          <description>
            Trigger Number as Originally Assigned
          </description>
          <ucd>
            meta.id;src
          </ucd>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>lii</name>
          <description>
            Galactic Longitude
          </description>
          <unit>degree</unit>
          <ucd>
            pos.galactic.lon
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>name</name>
          <description>
            Designation of the Pointed Source
          </description>
          <ucd>
            meta.id;src
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>obsid</name>
          <description>
            Unique Observation Number (Target_ID + Obs_Segment)
          </description>
          <ucd>
            meta.id;meta.main
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>exposure</name>
          <description>
            Total XRT Exposure Time for This Observation Segment (s)
          </description>
          <unit>s</unit>
          <ucd>
            time.duration;obs.exposure
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>window_size</name>
          <description>
            Indicates Size of Window Used
          </description>
          <ucd>
            phys.size;instr.pixel
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>obs_segment</name>
          <description>
            True Observation Segment (Corrected Value)
          </description>
          <ucd>
            meta.id
          </ucd>
          <dataType xsi:type="vs:VOTableType">int</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>pointing_mode</name>
          <description>
            Indicates Observing Mode of Spacecraft
          </description>
          <ucd>
            instr.param
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>ra</name>
          <description>
            Right Ascension
          </description>
          <unit>degree</unit>
          <ucd>
            pos.eq.ra;meta.main
          </ucd>
          <dataType xsi:type="vs:VOTableType">double</dataType>
          <flag>
            nullable
          </flag>
        </column>
        <column>
          <name>operation_mode</name>
          <description>
            Indicates Operating Mode of Instrument
          </description>
          <ucd>
            instr.setup
          </ucd>
          <dataType xsi:type="vs:VOTableType">char</dataType>
          <flag>
            nullable
          </flag>
        </column>
      </table>
    </schema>
  </tableset>
</ri:Resource>