Spacecraft automated operations

Details Spacecraft automated operations Spacecraft automated operations

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979guco.conf.....b&link_type=abstract

American Astronautical Society, Annual Rocky Mountain Guidance and Control Conference, Keystone, Colo., Feb. 24-28, 1979, 18 p.

Mathematics

Logic

Automation, Flyby Missions, Interplanetary Spacecraft, Spacecraft Control, Airborne/Spaceborne Computers, Command And Control, Mariner Space Probes, Spacecraft Design, Technological Forecasting

Scientific paper

Trends in automation of planetary spacecraft are examined using data from missions as far back as Mariner '67 and up to the highly sophisticated Galileo. Nine design considerations which influence the degree of automation such as protection against catastrophic failures, highly repetitive functions, loss of spacecraft communications, and the need for near-real-time adaptivity are discussed. Rapid growth of automation is shown in terms of on-board hardware by plots of number of processors on board, the average speed of processors, and total core memory. The number of commands transmitted from the ground has grown to 5 million bits in Voyager, so that increases in mission complexity have increased both in spacecraft automation and ground operations. Achieving greater automation by transferring ground operations to the spacecraft with the current means of controlling missions, are considered noting proposed changes. For the future, improved computer technology, more microprocessors and increased core storage will be used, and the number of automated functions and their complexity will grow. It is concluded that using the growing computational capability of spacecraft will achieve more autonomy thus reversing the trend of increased mission complexity and cost.

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