<?xml version="1.0" encoding="UTF-8"?>

<Spase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.spase-group.org/data/schema" xsi:schemaLocation="http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2.4.1.xsd">
  <Version>2.4.1</Version>

  <Instrument>

    <ResourceID>spase://CNES/Instrument/CDPP-AMDA/Cluster3/EFW</ResourceID>

    <ResourceHeader>

      <ResourceName>EFW</ResourceName>
      <AlternateName>Electric Field and Waves</AlternateName>

      <ReleaseDate>2016-11-04T15:37:46Z</ReleaseDate>
      <Description>The EFW (Electric Field and Waves) instrument consists of four orthogonal spherical sensors deployed from 50 m cable booms in the spin plane of the spacecraft, plus four deployment units and a main electronics unit. Each deployment unit deploys a multiconductor cable and tip-mounted spherical sensor. Each opposing pair of cables will be symmetrically deployed to a tip-to-tip distance of approximately 100 m, except for about a week at the beginning of the mission when 70 m will be used for one boom pair (the Z-booms) and 100 m for the other pair. The potentials of the spherical sensor and nearby conductors are controlled by the microprocessor to minimize errors associated with photoelectron fluxes to and from the spheres.  
      </Description>

      <Contact>

        <PersonID>spase://SMWG/Person/Mats.Andre</PersonID>

        <Role>PrincipalInvestigator</Role>
      </Contact>
      <InformationURL>

        <Name>ESA web page</Name>
        <URL>http://sci.esa.int/jump.cfm?oid=33024</URL>
        <Description>EFW: Electric Field and Wave experiment</Description>
      </InformationURL>
      <InformationURL>

        <Name>NSSDC's Master Catalog</Name>

        <URL>http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=2000-045A&amp;ex=8</URL>

        <Description>Information about the Electric Field and Waves (EFW) experiment on the Cluster 2/FM7 (Samba) mission.</Description>
      </InformationURL>

      <PriorID>spase://SMWG/Instrument/Cluster2-Samba/EFW</PriorID>

    </ResourceHeader>
    <InstrumentType>LongWire</InstrumentType>

    <InvestigationName>Electric Field and Waves (EFW) on Cluster 2/FM7 (Samba)</InvestigationName>

    <OperatingSpan>
      <StartDate>2000-12-01T00:00:00</StartDate>
      <Note>Start of full orbit coverage: 2002-06-01T00:00:00</Note>
      <Note>C3 spacecraft tilt by 40° during one month: 2008-05-01T00:00:00</Note>
    </OperatingSpan>

    <ObservatoryID>spase://CNES/Observatory/CDPP-AMDA/Cluster3</ObservatoryID>

  </Instrument>
</Spase>