<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Spase xmlns="http://www.spase-group.org/data/schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_4_0.xsd">
  <Version>2.4.0</Version>
  <NumericalData>
    <ResourceID>spase://CNES/NumericalData/CDPP-Archive/VEX/Ephemeris/VEX_ORBIT_GSE</ResourceID>
    <ResourceHeader>
      <ResourceName>VENUS EXPRESS orbit data (cruise phase, GSE frame, 1 min resolution)</ResourceName>
      <DOI>https://doi.org/10.24400/802406/eaj6-r36e</DOI>
      <ReleaseDate>2022-06-06T17:35:00Z</ReleaseDate>
      <Description>This data set contains VENUS EXPRESS position and velocity in GSE frame, 1 min resolution, during the cruise phase.

Each ASCII file represents one day.
The coordinate system used is GSE (Geocentric Solar Ecliptic).
Data record are arranged chronologically.
One record each minute containing :
-Time-tag, X.frame (km), Y.frame (km), Z.frame (km), Vx.frame (km/s), Vy.frame (km/s), Vz.frame (km/s)
-Data in the records are separated by commas and blanks.
Caution: For the first line, the velocity is NaN (Not a Number) initialized.</Description>
      <Contact>
        <PersonID>spase://CNES/Person/CDPP-Archive/CDPP.general.contact</PersonID>
        <Role>GeneralContact</Role>
      </Contact>
    </ResourceHeader>
    <AccessInformation>
      <RepositoryID>spase://CNES/Repository/CDPP-Archive/REGARDS-CDPP</RepositoryID>
      <Availability>Online</Availability>
      <AccessURL>
        <Name>REGARDS</Name>
        <URL>https://regards.cnes.fr/user/cdpp/modules/1777?sp=DatasetName;q=DatasetName:VEX_ORBIT_GSE</URL>
        <Description>Access via CNES Data Archive for CDPP</Description>
      </AccessURL>
      <Format>Text.ASCII</Format>
    </AccessInformation>
    <InstrumentID>spase://CNES/Instrument/CDPP-Archive/VEX/ASPERA4/Ephemeris</InstrumentID>
    <MeasurementType>Ephemeris</MeasurementType>
    <TemporalDescription>
      <TimeSpan>
        <StartDate>2005-11-09T00:00:00Z</StartDate>
        <StopDate>2006-03-31T00:00:00Z</StopDate>
      </TimeSpan>
    </TemporalDescription>
    <ObservedRegion>Venus.Magnetosphere</ObservedRegion>
    <Parameter>
      <Name>Position GSE</Name>
      <Description>S/C position defined in the GSE reference frame.</Description>
      <Units>km</Units>
      <UnitsConversion>1e3&gt;m</UnitsConversion>
      <CoordinateSystem>
        <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
        <CoordinateSystemName>GSE</CoordinateSystemName>
      </CoordinateSystem>
      <Support>
        <Qualifier>Vector</Qualifier>
        <SupportQuantity>Positional</SupportQuantity>
      </Support>
    </Parameter>
    <Parameter>
      <Name>Velocity GSE</Name>
      <Description>S/C velocity defined in the GSE reference frame.</Description>
      <Units>km/s</Units>
      <UnitsConversion>1e3&gt;m/s</UnitsConversion>
      <CoordinateSystem>
        <CoordinateRepresentation>Cartesian</CoordinateRepresentation>
        <CoordinateSystemName>GSE</CoordinateSystemName>
      </CoordinateSystem>
      <Support>
        <Qualifier>Vector</Qualifier>
        <SupportQuantity>Velocity</SupportQuantity>
      </Support>
    </Parameter>
  </NumericalData>
</Spase>
