Instrument Information
IDENTIFIER urn:nasa:pds:context:instrument:jpa.gio::1.0
NAME JOHNSTONE PLASMA ANALYZER (JPA)
TYPE SPECTROMETER
DESCRIPTION 
Instrument Overview
      ===================
      The Johnstone Plasma Analyzer (JPA) was designed to measure the
      three-dimensional energy distribution of positive ions to study
      the interaction between the solar wind and ionised cometary
      particles.  The two sensors measure the distribution from 10 eV
      ro 20 eV once per spacecraft spin and the distribution from
      90 eV to 90 keV, with coars mass discriminations, once every
      32 spins.
 
      For complete details and discussion of the instrument design and
      operation, see the instrumentaton article of ESA SP-1077, reprinted
      as part of the documentation in Giotto Extended Mission archive.
MODEL IDENTIFIER
NAIF INSTRUMENT IDENTIFIER not applicable
SERIAL NUMBER not applicable
REFERENCES Balsiger, H., K. Altwegg, F. Buehler, J. Fischer, J. Geiss, A. Meier, U. Rettenmund, H. Rosenbauer, R. Schwenn, J. Benson, P. Hemmerich, K. Saeger, G. Kulzer, M. Neugebauer, B. E. Goldstein, R. Goldstein, E. G. Shelley, T. Sanders, D. Simpson, A. J. Lazarus, and D. T. Young (1986). 'The Giotto Ion Mass Spectrometer'. In 'The Giotto Mission - Its Scientific Investigations' (R. Reinhard and B. Battrick, Eds.) ESA SP-1077, pp. 129-148. ESA Publications Division, ESTEC, Noordwijk.

Biermann, L., Kometenschweife und solare Korpuskularstrahlung, Zeitschrift fur Astrophysik, Vol.29, 274, 1951.

Biermann L, B Brosowski & H U Schmidt, The Interaction of the Solar Wind with a Comet, Solar Physics, I, 254, 1967.

Galeev A A, Cometary Exploration, Proc. Int. Conf. Cometary Exploration (Ed. T. Gombosi), Budapest, 243, 1983.

Galeev A A, T E Cravens, T I Gombosi, Solar-Wind Stagnation near Comets, Astrophys. I., 289, 807, 1985.

Ip, W. H., and Axford, W. I., 1982, 'Theories of Physical Processes in the Cometary Comae and Ion Tails', In: Comets (Ed. Wilkering et. al), Univ. of Arizona Press, 588-634.

Johnstone A D, S J Kellock, A J Coates, M F Smith, T Booker & J D Winningham, IEEE Trans., NS-32, 139, 1985.

McKenna-Lawlor S et al., The Energetic Particle Experiment (EPA) and its Preliminary In-flight Performance, ESA SP-1077, ESA Pub Div, Noordwijk, Netherlands, 53-66, 1986.

'Encounters with Comet Halley, The first results', Nature, Volume 321, No. 6067, 15 May 1986.

Reme H et al., The Giotto RPA-Copernic Plasma Experiment, ESA SP-1077, ESA Pub Div, Noordwijk, Netherlands, 33-52, 1986.

Schmidt, H.U., and R. Wegmann, Plasma flow and magnetic field in comets, In: Comets (Ed. L.L.Wilkening), University of Arizona Press, 538-560, 1982.

Wallis M & R S B Ong, Strongly coded ionising plasma flows with application to Venus, Planet Space Sci., 23, 713, 1975.

Wallis, M.K., Weakly shocked flows of the solar wind plasma through atmospheres of comets and planets, Planet. Space Sci., 21, 1647-1660, 1973.