Investigation of orbital dynamics of the earth co-orbital objects

Co-orbitals are one of the most interesting subjects in the recent years among the orbits located near the Earth. Today, thanks to technological developments, we can observe the objects in these orbits. We can also simulate the future or the past. There are several special orbits covered by co-orbitals. These are the Horseshoe, Tadpole, Quasi-satellite and Trojan orbits. There are two main factors that we can discriminate between these trajectories; semi-major axis and average longitude values. Within the scope of the thesis, we calculated these factors forward in time and obtained them graphically. To these factors, relative position and generated clone trajectories were also added. In addition, the stability of the co-orbits has gained considerable importance in recent years and studies on the co-orbital stability have been ongoing for a long time. In this thesis, we have determined the objects that make the same orbital motion with the Earth. We have determined the intervals for the orbital elements of the selected objects. We have analyzed the orbital elements of bodies orbiting co-orbits for near time intervals. We obtained comprehensive stability maps for these objects and analyzed them.