| Grant number: | 12/24369-0 |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| Start date: | June 01, 2013 |
| End date: | May 31, 2015 |
| Field of knowledge: | Engineering - Aerospace Engineering - Flight Dynamics |
| Principal Investigator: | Rodolpho Vilhena de Moraes |
| Grantee: | Jarbas Cordeiro Sampaio |
| Host 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 |
Abstract 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. | |
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