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Ultraviolet Spectrometer (UVS)

NSSDCA ID: 1977-084A-04

Mission Name: Voyager 1
Principal Investigator:Dr. A. Lyle Broadfoot


The UV spectrometer was designed to measure atmospheric properties, and to measure radiation in the wavelength range from O.O4 to 0.16 micrometers (400 to 1600 A). Two modes of instrument operation were planned, airglow and occultation. In the airglow mode the atmospheric radiation was measured. This radiation is predominantly resonance-scattered solar radiation, where the scattering is by molecular or atomic atmospheric constituents such as hydrogen (1216 A) or helium (584 A). In the occultation mode, sunlight was reflected into the spectrometer, and the solar spectrum was recorded. As the atmosphere moved between the spacecraft and the sun, the absorption characteristics of the atmosphere were obtained over the measured wavelength region. The absorption spectrum was used to identify the absorber as well as to measure its abundance in the line of sight to the sun. In addition, the atmospheric thermal structure could be inferred.

Alternate Names

  • UVS
  • Voyager1/UVS
  • urn:nasa:pds:context:instrument:vg1.uvs

Facts in Brief

Mass: 4.5 kg
Power (avg): 3.5 W

Funding Agency

  • NASA-Office of Space Science (United States)


  • Planetary Science: Atmospheres
  • Astronomy: Ultraviolet

Additional Information

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



NameRoleOriginal AffiliationE-mail
Dr. Michael J.S. BeltonCo-InvestigatorKitt Peak National
Dr. H. Warren MoosCo-InvestigatorJohns Hopkins
Dr. Michael B. McElroyCo-InvestigatorHarvard
Prof. Thomas M. DonahueCo-InvestigatorUniversity of
Prof. Jacques E. BlamontCo-InvestigatorCNRS, Service d'Aeronomie
Dr. Richard M. GoodyCo-InvestigatorHarvard
Prof. Alexander DalgarnoCo-InvestigatorSmithsonian Astrophysical
Dr. Jean-Loup C. BertauxCo-InvestigatorCNRS, Service d'
Dr. John C. McConnellCo-InvestigatorYork
Dr. Bill Roy SandelCo-InvestigatorUniversity of Southern
Dr. Darrell F. StrobelCo-InvestigatorUS Naval Research
Prof. Sushil K. AtreyaCo-InvestigatorUniversity of
Dr. Donald E. ShemanskyCo-InvestigatorUniversity of Arizona
Dr. A. Lyle BroadfootPrincipal InvestigatorUniversity of Southern

Selected References

  • Broadfoot, A. L., et al., Overview of the Voyager ultraviolet spectrometry results through Jupiter encounter, J. Geophys. Res., 86, No. A10, 8259-8284, doi:10.1029/JA086iA10p08259, Sept. 1981.
  • Broadfoot, A. L., et al., Extreme ultraviolet observations from Voyager 1 encounter with Saturn, Science, 212, No. 4491, 206-211, doi:10.1126/science.212.4491.206, Apr. 1981.
  • Broadfoot, A. L., et al., Ultraviolet spectrometer experiment for the Voyager mission, Space Sci. Rev., 21, No. 2, 183-205, doi:10.1007/BF00200850, Nov. 1977.
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