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Purdy, W. I.

Publications and source records attributed to Purdy, W. I..

A design for a 1984 Mars rover

A Mars rover is planned for the mid-1980's as a follow-up to the Viking program, and as a prelude to a return-to-earth mission of Martian samples in the late eighties or early nineties. An overall view of the rover's configuration is presented with a summary of basic design parameters. Six subsystems are outlined: computing, with a 10 to the 8th bit bubble memory; mobility, designed for a journey of 100 km in 2 earth years; science sample acquisition, including a soil auger and hard rock drill; power, supplied by an RTG and stored in batteries; telecommunication, with 50 K bit UHF transmission relayed through an orbiter; and visual imaging, employing two television cameras, each with an 800 x 800 pixel charge coupled device. Scientific research goals include information about Martian seismic characteristics, magnetic field, surface heat flow, chemical composition, geology along a transverse, and meteorology. Attention is given to the necessity of rover autonomy from earth commands.

Dobrotin, B. M.

The Outer Planet Mariner Spacecraft

The Mariner Jupiter/Saturn 1977 Spacecraft is designed to conduct a broad range of intensive investigations of the Jupiter and Saturn planetary systems, and of the interplanetary medium from earth to beyond Saturn. The spacecraft design has evolved from earlier Mariners, the Viking Orbiter, and the technology available for implementing long-life, reliable spacecraft designs. A description of the design is presented, and adaptations of that design for Jupiter/Uranus, Jupiter Orbiter, probe carrying, and mini-satellite carrying missions are discussed.

Draper, R. F.