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Space debris: collisions with artificial satellites and earth

Grant number: 12/24369-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): June 01, 2013
Effective date (End): May 31, 2015
Field of knowledge:Engineering - Aerospace Engineering
Principal Investigator:Rodolpho Vilhena de Moraes
Grantee:Jarbas Cordeiro Sampaio
Home Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Federal de São Paulo (UNIFESP). Campus São José dos Campos. São José dos Campos , SP, Brazil
Associated research grant:12/21023-6 - Artificial satellite dynamics, AP.TEM


The increasing number of objects orbiting the Earth justifies the great attention and interest in the observation, spacecraft protection and collision avoidance. These studies involve different disturbances and resonances in the orbital motions of these objects distributed by the distinct altitudes.Most of the objects are found in the LEO (Low Earth Orbit) region because this region has a big quantity of space debris. In this work, all cataloged objects in the TLE (Two-Line Elements) files of the NORAD (North American Defense) are studied. Using the real data of the artificial satellites and space debris the current scenario of risk of collision can be investigated. The resonant orbits have a large portion of objects and possible irregular motions are considered by the presence of different resonant angles describing the orbital dynamics of these objects. An additional problem is observed in the LEO region because a lot of space debris are crossing the Earth's atmosphere and collisions with the surface of the planet are an actual and future reality.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SAMPAIO, J. C.; WNUK, E.; VILHENA DE MORAES, R.; FERNANDES, S. S. Resonant Orbital Dynamics in LEO Region: Space Debris in Focus. MATHEMATICAL PROBLEMS IN ENGINEERING, 2014. Web of Science Citations: 3.

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