<h2> Giotto Johnstone Plasma Analyser data at AMDA</h2>

Source: <a href="ftp://psa.esac.esa.int/pub/mirror/GIOTTO/JPA/" TARGET=_BLANK>ESA PSA</a><br/><br/>
<b> Principal Investigator(s): A. Johnstone (Mullard Space Science Laboratory, Holmbury St Mary, UK)</b><br/><br/>

<i>Please acknowledge the above Principal Investigator(s) 
as well as the European Space Agency when making a publication using the data.</i><br/><br/>
 
 <ul>
 <li>                                                                       
          This instrument is designed to measure the                          
          three-dimensional energy distribution of positive                   
          ions in order to study the interaction between the                  
          solar wind and ionised cometary particles.  The two                 
          sensors measure the distribution from 10 eV to 20                   
          keV once per spacecraft spin and the distribution                   
          from 90 eV to 90 keV, with coarse mass                              
          discrimination, once every 32 spins. 
<li>          The data contains results from the Implanted Ion Sensor     
          (IIS) 4DH mode and the Fast Ion Sensor SW and HAR modes       
          of the Three-Dimensional Particle Analyser (JPA) experiment   
          on the GIOTTO space craft for the mission to comet            
          P/Halley.  The results of the Fast Ion Sensor (FIS - inbound) and IIS         
          (outbound) have been merged in this data.  
   
<li>      The source ESA PSA file: JPAMERG1.TAB       
</ul>
<br/>
Experiment <a href="ftp://psa.esac.esa.int/pub/mirror/GIOTTO//JPA/GIO-C-JPA-4-DDR-HALLEY-MERGE-V1.0/CATALOG/INST.CAT" TARGET=_BLANK</a>full description</a>