On the Possibility of Long Time Existence of Man-Made Microparticles Injected on Oblong Elliptic Orbits with Low Perigee Altitude in the Near Earth Space

Basing on the results of numerical experiments a possibility in principle of long time keeping (more than 1 month) and very long time keeping (about or more than 1 year) of man-made particles of aluminium and aluminium oxide with radii more than 1 micron and less than 0.1 micron injected on oblong elliptic orbits with low perigee altitude in the near earth space is shown. Estimates made earlier that clouds of man-made particles with long time life which are observed by space vehicle on low altitude orbits consist of particles moving in the Near Earth Space on oblong elliptic orbits have been confirmed by obtained calculated data.