Flyby mission feasibility for new /first-apparition/ comets

Details Flyby mission feasibility for new /first-apparition/ comets Flyby mission feasibility for new /first-apparition/ comets

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980toky.iafcs....f&link_type=abstract

International Astronautical Federation, International Astronautical Congress, 31st, Tokyo, Japan, Sept. 22-28, 1980, 19 p.

Statistics

Comets, Flyby Missions, Interplanetary Flight, Space Exploration, Statistical Analysis, Trajectory Analysis, Feasibility Analysis, Interplanetary Trajectories, Least Squares Method, Monte Carlo Method, Orbital Elements, Space Navigation, Tables (Data)

Scientific paper

The paper examines the feasibility of flyby missions for new (first-apparition) comets. It is pointed out that no specific knowledge of a comet's physical and orbital state exists prior to discovery and that the lead time between discovery and launch must be measured in months. Nevertheless, an interception or flyby of a comet in the vicinity of perihelion passage is shown to be feasible. It is shown that there would be between one and five opportunities each year for flyby missions depending on the assumptions regarding comet population and encounter constraints. The paper also shows that targeting accuracy can be attained through an onboard comet tracker and describes alternative methods of implementing a comet search program, especially the GEODSS (Ground-based Electro Optical Deep Space Surveillance System) of the Air Force. Extensive orbital statistics and navigational and guidance data are presented.

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