<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>