Providing relay communications support for the Mars Environmental Survey (MESUR) mission

Details Providing relay communications support for the Mars Environmental Survey (MESUR) mission Providing relay communications support for the Mars Environmental Survey (MESUR) mission

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992asdy.conf.1071s&link_type=abstract

IN: Astrodynamics 1991; Proceedings of the AAS/AIAA Astrodynamics Conference, Durango, CO, Aug. 19-22, 1991. Pt. 2 (A92-43251 18

Astronomy and Astrophysics

Astronomy

Climate Change, Mars Atmosphere, Mars Environment, Mars Surface, Planetary Evolution, Chemical Composition, Nasa Space Programs, Solar System Evolution, Space Exploration

Scientific paper

The purpose of the Mars Environmental Survey (MESUR) mission is to put in place, over several launch opportunities, a constellation of Mars landers to make long-term surface observations of the circulation of the atmosphere and changes in climate, and to record the seismic activity of the planetary crust. Short-term objectives will also be addressed. An orbital communications infrastructure capable of providing regular high-rate data transfer to earth from the landers, which are scattered globally from pole to pole, is key to accomplishing the mission goals. A study is thereby presented of the orbit selection for the orbiter spacecraft, which will provide this support, and the relay communications operation. It is concluded that adequate communications support for the objectives of the MESUR mission can be provided by a single orbiter, provided care is taken in the selection of the size and orientation (i.e., inclination and apse line alignment) of the spacecraft orbit.

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