<voe:VOEvent
      ivorn="ivo://nasa.gsfc.gcn/MAXI#Known_source_Pos_2026-03-24T23:03:42.00_1123847777-0-053"
      role="observation" version="2.0"
      xmlns:voe="http://www.ivoa.net/xml/VOEvent/v2.0"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.ivoa.net/xml/VOEvent/v2.0  http://www.ivoa.net/xml/VOEvent/VOEvent-v2.0.xsd" >
  <Who>
    <AuthorIVORN>ivo://nasa.gsfc.tan/gcn</AuthorIVORN>
    <Author>
      <shortName>MAXI (via VO-GCN)</shortName>
      <contactName>Motoko Serino</contactName>
      <contactEmail>motoko@crab.riken.jp</contactEmail>
    </Author>
    <Date>2026-03-28T06:45:13</Date>
    <Description>This VOEvent message was created with GCN VOE version: 15.08 17jun22</Description>
  </Who>
  <What>
    <Param name="Packet_Type"         value="135" />
    <Param name="Pkt_Ser_Num"         value="3" />
    <Param name="TrigID"              value="1123847777" ucd="meta.id" />
    <Param name="Source_TJD"          value="21123"  unit="days" ucd="time" />
    <Param name="Source_SOD"          value="83022.00" unit="sec"  ucd="time" />
    <Param name="Source_Flux"         value="2.0" unit="mCrab" ucd="phot.flux" />
    <Param name="Source_LoBand_Flux"  value="6.0" unit="mCrab" ucd="phot.flux" />
    <Param name="Source_MeBand_Flux"  value="-24.0" unit="mCrab" ucd="phot.flux" />
    <Param name="Source_HiBand_Flux"  value="20.0" unit="mCrab" ucd="phot.flux" />
    <Param name="Bkg_LoBand_Flux"     value="14.0" unit="mCrab" ucd="phot.flux" />
    <Param name="Bkg_MeBand_Flux"     value="14.0" unit="mCrab" ucd="phot.flux" />
    <Param name="Bkg_HiBand_Flux"     value="26.0" unit="mCrab" ucd="phot.flux" />
    <Param name="Source_TimeScale"    value="1day" ucd="meta.id" />
    <Param name="Source_EBand"        value="Low, 2-4 keV" ucd="meta.id" />
    <Param name="Event_Class"         value="x-ray-star" ucd="meta.id" />
    <Param name="Source_Name"         value=" XTE J1859+083"  ucd="meta.id"  />
    <Param name="Trigger_ID"          value="0x14" />
    <Param name="Misc_flags"          value="0x40000001" />
    <Param name="SC_Long"             value="0.00" unit="deg" ucd="pos.earth.lon" />
    <Param name="SC_Lat"        value="0.00" unit="deg" ucd="pos.earth.lat" />
    <Group name="Trigger_ID" >
      <Param name="Spatial_Prox_Match"    value="false" />
      <Param name="Temporal_Prox_Match"   value="false" />
      <Param name="Test_Submission"       value="false" />
    </Group>
    <Group name="Misc_Flags" >
      <Param name="Values_Out_of_Range"   value="false" />
      <Param name="Gnd_Generated"         value="true" />
    </Group>
    <Param name="Coords_Type"         value="1" unit="dn" />
    <Param name="Coords_String"       value="source_object" />
    <Group name="Obs_Support_Info" >
      <Description>The Sun and Moon values are valid at the time the VOEvent XML message was created.</Description>
      <Param name="Sun_RA"        value="6.99" unit="deg" ucd="pos.eq.ra" />
      <Param name="Sun_Dec"       value="3.02" unit="deg" ucd="pos.eq.dec" />
      <Param name="Sun_Distance"  value="81.94" unit="deg" ucd="pos.angDistance" />
      <Param name="Sun_Hr_Angle"  value="5.48" unit="hr" />
      <Param name="Moon_RA"       value="132.54" unit="deg" ucd="pos.eq.ra" />
      <Param name="Moon_Dec"      value="20.38" unit="deg" ucd="pos.eq.dec" />
      <Param name="MOON_Distance" value="140.70" unit="deg" ucd="pos.angDistance" />
      <Param name="Moon_Illum"    value="76.33" unit="%" ucd="arith.ratio" />
      <Param name="Galactic_Long" value="40.58" unit="deg" ucd="pos.galactic.lon" />
      <Param name="Galactic_Lat"  value="2.19" unit="deg" ucd="pos.galactic.lat" />
      <Param name="Ecliptic_Long" value="286.60" unit="deg" ucd="pos.ecliptic.lon" />
      <Param name="Ecliptic_Lat"  value="30.41" unit="deg" ucd="pos.ecliptic.lat" />
    </Group>
    <Description>The MAXI detection flare from a known-source transient.</Description>
  </What>
  <WhereWhen>
    <ObsDataLocation>
      <ObservatoryLocation id="GEOLUN" />
      <ObservationLocation>
        <AstroCoordSystem id="UTC-FK5-GEO" />
        <AstroCoords coord_system_id="UTC-FK5-GEO">
          <Time unit="s">
            <TimeInstant>
              <ISOTime>2026-03-24T23:03:42.00</ISOTime>
            </TimeInstant>
          </Time>
          <Position2D unit="deg">
            <Name1>RA</Name1>
            <Name2>Dec</Name2>
            <Value2>
              <C1>284.3999</C1>
              <C2>7.7999</C2>
            </Value2>
            <Error2Radius>0.5000</Error2Radius>
          </Position2D>
        </AstroCoords>
      </ObservationLocation>
    </ObsDataLocation>
  <Description>The RA,Dec coordinates are of the type: source_object.</Description>
  </WhereWhen>
  <How>
    <Description>MAXI Instrument, ISS</Description>
    <Reference uri="http://gcn.gsfc.nasa.gov/maxi.html" type="url" />
  </How>
  <Why importance="0.9">
    <Inference probability="0.9">
      <Concept>process.variation;em.gamma</Concept>
    </Inference>
  </Why>
  <Description>
  </Description>
</voe:VOEvent>
