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LMRSTSat (Low Mass Radio Science Transponder Satellite) is a 3U cubesat by NASA Jet Propulsion Laboratory, Pasadena, California to test out a Low Mass Radio Science Transponder in space to demonstrate the use of X-/Ka-Band ranging techniques to allow further study of Radio Science instruments that can be used for deep-space navigation, gravity field measurements and to examine the motions and cores of celestial bodies once landed.

The Low Mass Radio Science Transponder (LMRST) is a bare-bones, two-way Doppler and ranging transponder, based on well established navigation techniques in use by the Deep Space Network. The proposed LMRST-Sat would be a TRL-raising demonstration mission for a developmental model of the X-Band LMRST exciter. Ka-Band and higher power versions of the instrument are also in development.

In addition to navigation throughout the solar system, LMRST would enable radiometric science such as gravity field determination and planetary atmosphere profiling via radio occultation.

Alternate Names

  • 40971
  • LMRSTSat

Facts in Brief

Launch Date: 2015-10-08
Launch Vehicle: Atlas V 401
Launch Site: Vandenberg AFB, United States

Funding Agency

  • NASA Jet Proplusion Laboratory (United States)


  • Technology Applications

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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