<?xml version="1.0" encoding="UTF-8"?>
<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://cdpp1.cesr.fr/AMDA-NG/public/schemas/spase-amda-1_2_0.xsd">
   <Version>2.2.6</Version>
   <NumericalData>
      <ResourceID>spase://CDPP/NumericalData/AMDA/MAVEN/LPW/mvn-lpw-scpot</ResourceID>
      <ResourceHeader>
         <ResourceName>merged s/c potential</ResourceName>

         <ReleaseDate>2016-08-29T11:25:00Z</ReleaseDate>
         <Description> This bundle contains fully calibrated, science quality data produced by the LPW 
            instrument. The data include spacecraft potential.                      

         </Description>

         <Acknowledgement>Principal Investigator : Robert E. Ergun, LASP, Boulder</Acknowledgement>            

         <Contact>        

            <PersonID>spase://SMWG/Person/Robert.E.Ergun</PersonID>

            <Role>PrincipalInvestigator</Role>           
         </Contact>
         <Contact>        
            <PersonID>Laila Andersson</PersonID>
            <Role>TechnicalContact</Role>           

         </Contact>
         <InformationURL>

            <Name>LPW web page, Summary sheet</Name>
            <URL>http://lasp.colorado.edu/home/maven/science/instrument-package/lpw/</URL>
            <Description>  The Langmuir Probe and Waves (LPW) instrument is part of the Particles and 
               Fields (P and F) Package and determines ionospheric properties, wave heating of the 
               upper atmosphere, and solar EUV input to the atmosphere.
               
               Goals:
               Measure the in situ electron density and electron temperature from the ionospheric peak up to the nominal ionopause location. It will also measure the electric field wave power important for ion heating
               Characterize the basic state of the ionosphere—its global structure, variability, and thermal properties
               Determine the effects of solar wind generated plasma waves and auroral precipitation on ionosphere heating and relationship to plasma escape
               Determine the electron temperatures required for deriving ion recombination rates and ionospheric chemistry
               Identify the ionopause and detached, escaping ionosphere clouds            

           </Description>
         </InformationURL>       
      </ResourceHeader>
      <AccessInformation>
         <RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID>
         <Availability>Online</Availability>
         <AccessRights>Open</AccessRights>
         <AccessURL>
            <Name>AMDA at CDPP</Name>
            <URL>
                http://amda.cdpp.eu
            </URL>
         </AccessURL>
         <Format>Text.ASCII</Format>

         <Acknowledgement> AMDA is a science analysis system provided by the Centre de Donnees de la 
            Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and 
            Universite Paul Sabatier, Toulouse          

         </Acknowledgement>
      </AccessInformation>

      <ProviderName>PDS</ProviderName>
      <ProviderResourceName>maven-lpw-calibrated/mrg-scpot</ProviderResourceName>

      <InstrumentID>spase://CDPP/Instrument/AMDA/MAVEN/LPW</InstrumentID>
      <MeasurementType>Waves</MeasurementType>
      <TemporalDescription>
         <TimeSpan>

             <StartDate>2014-10-08T00:00:01Z</StartDate>

             <StopDate>2016-05-14T03:14:10Z</StopDate>

         </TimeSpan>

         <Cadence_Min>PT2S</Cadence_Min> 
         <Cadence_Max>PT4S</Cadence_Max>

      </TemporalDescription>
      <ObservedRegion>Mars</ObservedRegion>
      <Caveats>Use Flag parameter for Quality of Potential. Use data with flag value
 above 50.</Caveats>    
 <Parameter>
    <Name>s/c pot</Name>
    <ParameterKey>mav_lpw_pot</ParameterKey>

    <Description>spacecraft potential</Description>    
    <Ucd>phys.electField</Ucd>     

    <Units>V</Units>
    <UnitsConversion/>
    <ValidMin>-20.0</ValidMin>
    <ValidMax>20.0</ValidMax>
    <FillValue>nan</FillValue>

    <Field>
       <Qualifier>Scalar</Qualifier>
       <FieldQuantity>Potential</FieldQuantity>
    </Field>

 </Parameter>
  <Parameter>
    <Name>s/c pot quality</Name>
    <ParameterKey>mav_lpw_flag</ParameterKey>
    <Description>Quality of Potential.The uncertainty of the
 values with a scale of 0-100. 100 is the best quality.  Use data with flag value
 above 50</Description>

     <Ucd/>

    <Units/>
    <UnitsConversion/>

     <ValidMin>0</ValidMin>
     <ValidMax>100</ValidMax>

 </Parameter>
</NumericalData>
</Spase>