CCSD3ZF0000100000001NJPL3IF0PDSX00000001
PDS_VERSION_ID                     = PDS3

RECORD_TYPE                        = STREAM
OBJECT                             = INSTRUMENT
  INSTRUMENT_HOST_ID               = ULY
  INSTRUMENT_ID                    = URAP

  OBJECT                           = INSTRUMENT_INFORMATION
    INSTRUMENT_NAME                = "UNIFIED RADIO AND PLASMA WAVE EXPERIMENT"
    INSTRUMENT_TYPE                = "PLASMA WAVE SPECTROMETER"
    INSTRUMENT_DESC                = "

      Instrument Overview
      ===================

      (excerpted from: [STONEETAL1992A])

      Abstract. -- The scientific objectives of the Ulysses Unifiewd
      Radio and Plasma wave (URAP) experiment are twofold: 1) the
      determination of the direction, angular size, and polarization
      of radio sources for remote sensing of the heliosphere and the
      Jovian magnetosphere and 2) the detailed study of local wave
      phenomena, which determine the transport coefficients of the
      ambient plasma. The tracking of solar radio bursts, for
      example, can provide three dimensional 'snap-shots' of the
      large scale magnetic field configuration along which the solar
      exciter particles propagate. URAP observations of Jovian radio
      emissions should greatly improve the determination of source
      locations and consequently our understanding of the generation
      mechanism(s) of planetary radio emissions. The study of
      observed wave-particle interactions will improve our
      understanding of the processes that occur in the solar wind
      and at Jupiter and of radio wave generation . . . . The URAP
      sensors consist of a 72.5 m electric field antenna in the spin
      plane, a 7.5-m electric field monopole along the spin axis and
      a pair of orthogonal search coil magnetic antennas. The
      various receivers, designed to encompass specific needs of the
      investigation, cover the frequency range from DC to 1 MHz. A
      relaxation sounder provides very accurate electron density
      measurements. Radio and plasma wave observations are shown to
      demonstrate the capabilities and limitations of the URAP
      instruments: radio observations include solar bursts, auroral
      kilometric radiation, and Jovian bursts; plasma waves include
      Langmuir waves, ion acoustic-like noise, and whistlers."
  END_OBJECT                       = INSTRUMENT_INFORMATION

  OBJECT                           = INSTRUMENT_REFERENCE_INFO
    REFERENCE_KEY_ID               = "MACDOWALLETAL1996"
  END_OBJECT                       = INSTRUMENT_REFERENCE_INFO
  OBJECT                           = INSTRUMENT_REFERENCE_INFO
    REFERENCE_KEY_ID               = "STONEETAL1992A"
  END_OBJECT                       = INSTRUMENT_REFERENCE_INFO

END_OBJECT                         = INSTRUMENT
END