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Planetary Radio Astronomy (PRA)

NSSDCA ID: 1977-084A-10

Mission Name: Voyager 1
Principal Investigator:Dr. James W. Warwick


This experiment consisted of a sweep-frequency radio receiver operating in both polarization states, between 20 kHz and 40.5 MHz. The signal was received by a pair of orthogonal 10-m monopole antennas. Study of the radio-emission signals from Jupiter and Saturn over this range of frequencies yielded data concerning the physics of magnetospheric plasma resonances and nonthermal radio emissions from these planetary regions.

Alternate Names

  • PRA
  • Planetary Radio Astronomy
  • Voyager1/PRA
  • urn:nasa:pds:context:instrument:vg1.pra

Facts in Brief

Mass: 7.7 kg
Power (avg): 5.5 W
Bit rate (avg): 0.266 kbps

Funding Agency

  • NASA-Office of Space Science (United States)


  • Planetary Science: Fields and Particles
  • Astronomy: Radio

Additional Information

Questions and comments about this experiment can be directed to: Dr. Edwin V. Bell, II



NameRoleOriginal AffiliationE-mail
Dr. J. B. PearceCo-InvestigatorRadiophysics, Inc
Mr. Michael L. KaiserCo-InvestigatorNASA Goddard Space Flight
Mr. Joseph K. Alexander, Jr.Co-InvestigatorNASA Goddard Space Flight Center
Prof. Fred T. HaddockCo-InvestigatorUniversity of Michigan
Mr. Walter E. Brown, Jr.Co-InvestigatorNASA Jet Propulsion Laboratory
Prof. David H. StaelinCo-InvestigatorMassachusetts Institute of
Dr. Christopher C. HarveyCo-InvestigatorObservatoire de Paris,
Dr. Andre C. BoischotCo-InvestigatorObservatoire de Paris,
Dr. Thomas D. CarrCo-InvestigatorUniversity of
Dr. Yolande LeblancCo-InvestigatorObservatoire de Paris,
Mr. R. G. PeltzerCo-InvestigatorMartin-Marietta Aerospace
Mr. Anthony C. RiddleCo-InvestigatorUniversity of Colorado
Dr. Roger J. PhillipsCo-InvestigatorLunar and Planetary
Dr. James W. WarwickPrincipal InvestigatorUniversity of Colorado

Selected References

  • Carr, T. D., et al., Phenomenology of magnetospheric radio emissions, in Physics of the Jovian Magnetosphere, edited by A. J. Dessler, pp. 226--284, Cambridge U. Press., Cambridge, UK, 1983.
  • Boischot, A., et al., Radio Jupiter after Voyager: An overview of the planetary radio astronomy observations, J. Geophys. Res., 86, No. A10, 8213-8226, doi:10.1029/JA086iA10p08213, Sept. 1981.
  • Warwick, J. W., et al., Planetary radio astronomy observations from Voyager 1 near Saturn, Science, 212, No. 4491, 239-243, doi:10.1126/science.212.4491.239, Apr. 1981.
  • Warwick, J. W., et al., Voyager 1 planetary radio astronomy observations near Jupiter, Science, 204, No. 4396, 995-998, doi:10.1126/science.204.4396.995, June 1979.
  • Warwick, J. W., et al., Planetary radio astronomy experiment for Voyager missions, Space Sci. Rev., 21, No. 3, 309-327, doi:10.1007/BF00211544, Dec. 1977.
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