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Planetary Radio Astronomy (PRA)

NSSDC 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

Facts in Brief

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

Funding Agency

  • NASA-Office of Space Science (United States)


  • Astronomy: Radio
  • Planetary Science: Fields and Particles

Additional Information

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



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

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, Sept. 1981.

Warwick, J. W., et al., Planetary radio astronomy observations from Voyager 1 near Saturn, Science, 212, No. 4491, 239-243, Apr. 1981.

Warwick, J. W., et al., Voyager 1 planetary radio astronomy observations near Jupiter, Science, 204, No. 4396, 995-998, June 1979.

Warwick, J. W., et al., Planetary radio astronomy experiment for Voyager missions, Space Sci. Rev., 21, No. 3, 309-327, Dec. 1977.

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