Celestino, Claudia C.Winter, Othon C. [UNESP]Prado, Antonio F. B. de A.Seago, J. H.Neta, B.Eller, T. J.Pelletier, F. J.2020-12-102020-12-102008-01-01Spaceflight Mechanics 2008, Vol 130, Pts 1 And 2. San Diego: Univelt Inc, v. 130, p. 467-+, 2008.1081-6003http://hdl.handle.net/11449/197382The evolution of the velocity of the particles with respect to the circular orbits of satellites that are around the Earth that the particles will cross, suggests a range of possible velocities of impact as a function of the altitude of the satellite. A study made from those results show that the maximum relative velocities occur at the semi-latus rectum, independent of the initial semi-major axis of the particle. Considering both the solar radiation pressure and the oblateness of the Earth, it is visible that a precession in the orbit occurs and there is also a variation in the eccentricity of the particle as a function of its orbital region and its size. This is important information, because the damage caused in a spacecraft depends on the impact velocity.467-+engTrabalho apresentado em eventoWOS:000258397800029