Cluster analysis of the meteoroid orbit population

To provide efficient searches of the meteoroid orbit population for indications of orbit grouping, techniques based on cluster analysis are described. These procedures are distinct from the meteoroid orbit searches used previously where the population is tested against a reference orbit: here the whole population is searched for multiple clustering over a given time interval. Appropriate graphical techniques are applied to enhance the understanding of the structure of the dataset. A preliminary sampling of the radar orbits obtained by the AMOR facility is presented in order to demonstrate the procedures.