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Planetary Radio Astronomy (PRA)

NSSDCA ID: 1977-076A-10

Mission Name: Voyager 2
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. The physics of magnetospheric plasma resonances and of nonthermal radio emissions from these planetary regions was studied by investigation of the radio emission signals from Jupiter and Saturn over this range of frequencies, and similar studies will be done at Uranus and Neptune.

Alternate Names

  • PRA
  • Voyager2/PRA
  • urn:nasa:pds:context:instrument:vg2.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,
Dr. Samuel GulkisCo-InvestigatorNASA Jet Propulsion
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

  • 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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