| Helium Vector Magnetometer (HVM) |
| | This instrument measures the fine structure of the interplanetary magnetic field, mapped the Jovian magnetic field, and provided magnetic field measurements to evaluate solar wind interaction with Jupiter. The magnetometer consists of a helium-filled cell mounted on a 6.6 m boom to partly isolate the instrument from the spacecraft's magnetic field. Principal investigator: Edward Smith / JPL Data: PDS/PPI data catalog, NSSDC data archive |
| Quadrispherical Plasma Analyzer |
| | The plasma analyzer peers through a hole in the large dish-shaped antenna to detect particles of the solar wind originating from the Sun. Principal investigator: Aaron Barnes / NASA Ames Research Center Data: PDS/PPI data catalog, NSSDC data archive |
| Charged Particle Instrument (CPI) |
| | This instrument detects cosmic rays in the Solar System. Principal investigator: John Simpson / University of Chicago Data: NSSDC data archive |
| Cosmic Ray Telescope (CRT) |
| | This instrument collects data on the composition of the cosmic ray particles and their energy ranges. Principal investigator: Frank B. McDonald / NASA Goddard Space Flight Center Data: PDS/PPI data catalog, NSSDC data archive |
| Geiger Tube Telescope (GTT) |
| | The Geiger tube telescope surveys the intensities, energy spectra, and angular distributions of electrons and protons along the spacecraft's path through the radiation belts of Jupiter. Principal investigator: James A. Van Allen / University of Iowa Data: PDS/PPI data catalog, NSSDC data archive |
| Trapped Radiation Detector (TRD) |
| | This instrument includes an unfocused Cerenkov counter that detects the light emitted in a particular direction as particles passed through it recording electrons of energy, 0.5 to 12 MeV, an electron scatter detector for electrons of energy, 100 to 400 keV, and a minimum ionizing detector consisting of a solid-state diode that measure minimum ionizing particles (<3 MeV) and protons in the range of 50 to 350 MeV. Principal investigator: R. Fillius / University of California San Diego Data: NSSDC data archive |
| Meteoroid Detectors |
| | The meteoroid detectors consist of twelve panels of pressurized cell detectors mounted on the back of the main dish antenna record penetrating impacts of small meteoroids. Principal investigator: William Kinard / NASA Langley Research Center Data: NSSDC data archive list |
| Asteroid/Meteoroid Detector (AMD) |
| | The meteoroid-asteroid detector look into space with four non-imaging telescopes to track particles ranging from close by bits of dust to distant large asteroids. Principal investigator: Robert Soberman / General Electric Company Data: NSSDC data archive |
| Ultraviolet Photometer |
| | Ultraviolet light (200 to 800 Å) is sensed by the UV photometer to determine the quantities of hydrogen and helium in space and on Jupiter. Principal investigator: Darrell Judge / University of Southern California Data: PDS/PPI data catalog, NSSDC data archive |
| Imaging Photopolarimeter (IPP) |
| | The imaging experiment relies upon the spin of the spacecraft to sweep a small telescope across the planet in narrow strips only 0.03 degrees wide, looking at the planet in red (5800 to 7000 Å) and blue (3900 to 4900 Å) light. These strips were then processed to build up a visual image of the planet. Principal investigator: Tom Gehrels / University of Arizona Data: NSSDC data archive list |
| Infrared Radiometer |
| | This instrument provides information on cloud temperature and the output of heat from Jupiter. Principal investigator: Andrew Ingersoll / California Institute of Technology |
