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ULYSSES Scientific Payload
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ULYSSES

Scientific Payload

A summary of the nine flight experiments which make up the spacecraft payload is presented in the following table.

Magnetic Field (HED)

  • Principal Investigator
    • A. Balogh, Imperial College London
  • Measurement
    • Spatial and temporal variations of the heliospheric and Jovian magnetic field in the range 10.01 nT to 144000 nT
  • Instrumentation
    • Triaxial vector Helium and fluxgate magnetometers

>Solar Wind (BAM/SWOOPS)

  • Principal Investigator
    • S.J. Bame, Los Alamos Nat. Lab.
    • J. L. Phillips, Los Alamos Nat. Lab.
  • Measurement
    • Solar-wind ions between 257 eV/Q and 35 keV/Q
    • Solar-wind electrons between 1 eV and 903 eV
  • Instrumentation
    • Two electrostatic analysers with channel electron multipliers (CEMs)

>Solar-Wind Ion Composition (GLG/SWICS)

  • Principal Investigators
    • G. Gloeckler, Univ. Maryland
    • J. Geiss, Univ. Bern
  • Measurement
    • elemental and ionic-charge composition from H+ to FE+8, temperature and mean velocity of solar-wind ions for speeds from 145 km/s to 1352 km/s
  • Instrumentation
    • Electrostatic analyser with time-of-flight and energy measurement

>Low-Energy Ions and Electrons (LAN/HI-SCALE)

  • Principal Investigator
    • L. Lanzerotti, Bell Laboratories
  • Measurement
    • Energetic ions from 50 keV to 5 MeV
    • Electrons from 30 keV to 300 keV
  • Instrumentation
    • Two sensor heads with five solid-state detector telescopes

>Energetic Particle Composition and Interstellar Gas (KEP/EPAC and GAS)

  • Principal Investigator
    • E. Keppler and M. Witte, MPI Lindau
  • Measurement
    • Composition of energetic ions from 80 keV to 15 MeV/nuc
    • Interstellar neutral helium
  • Instrumentation
    • Four solid-state detector telescopes
    • LiF-coated conversion plates with channel electron multipliers

Cosmic Rays and Solar Particles (SIM/COSPIN)

  • Principal Investigator
    • J.A. Simpson, Univ. Chicago
  • Measurement
    • Cosmic rays and energetic solar particles in the range 0.3-600 MeV/nuc
    • Electrons in the range 4-2000 MeV
  • Instrumentation
    • Five solid-state detector telescopes, one double Cerenkov and semi-conductor telescope for electrons

>Unified Radio and Plasma Waves (STO/URAP)

  • Principal Investigators
    • R.G. Stone, NASA/GSFC
    • R.J. MacDowall, NASA/GSFC
  • Measurement
    • Plasma waves; remote sensing of travelling solar radio bursts, and electron density
      Electric field:
      Plasma waves: 0-60 kHz
      Radio receiver: 1-940 kHz
      Magnetic field: 10-500 Hz
  • Instrumentation
    • 72 m radial dipole antenna
    • 7.5 m axial monopole antenna
    • Two-axis search coil

Solar X-rays and Cosmic Gamma-Ray Bursts (HUS/GRB)

  • Principal Investigators
    • K. Hurley, CESR Toulouse
    • M. Sommer, MPI Garching
  • Measurement
    • Solar-flare X-rays and cosmic gamma-ray bursts in the energy range 5-150 keV
  • Instrumentation
    • Two Si solid-state detectors
    • Two CsI scintillation crystals

Cosmic Dust (GRU)

  • Principal Investigator
    • E. Grün, MPI Heidelberg
  • Measurement
    • Direct measurement of particulate matter in mass range 10-16 - 10-7 g
  • Instrumentation
    • Multicoincidence impact detector with channeltron

These instruments provided most outstanding data from which far reaching conclusions on the nature of the high latitude Heliosphere have been drawn. Besides these instruments, radio-science investigations will be conducted on ULYSSES which, at specific times during the mission, made use of the spacecraft and ground communications systems to perform scientific measurements.


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