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Radio Science

NSSDCA ID: 1966-017A-08

Mission Name: Cosmos 111


The radio science experiments was designed to use the spacecraft radio system (183 MHz and 922 MHz) for occultation experiments and tracking of the spacecraft orbit to determine the lunar gravity field. Occultation experiments could be done when the orbital geometry was such that the radio transmissions to Earth would pass directly over the limb of the Moon, characteristics of the received radio waves could be used to study the lunar atmosphere. Careful radio tracking and measurement of Doppler shifts in the radio frequency would allow estimates of the satellite's orbital changes due to the lunar gravity field.

Alternate Names

  • Cosmos111/RadioScience

Funding Agency

  • Unknown (U.S.S.R)


  • Planetary Science: Atmospheres
  • Planetary Science: Celestial Mechanics

Additional Information

Questions and comments about this experiment can be directed to: Dr. David R. Williams



NameRoleOriginal AffiliationE-mail
Dr. Efraim L. AkimGeneral ContactKeldysh Institute of Applied Mathematics,
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