Determination of the trajectory of selected several near earth asteroids and investigation their physical properties

Within the scope of this thesis, classification of asteroids, their nomenclature, orbital changes, potential danger and damages, trajectory analysis, observations and reporting are explained. In this context (297418) 2000 SP43, (163081) 2002 AG29, (308635) 2005 YU55 and (45467) 2000 AK203 asteroids were observed with TUBITAK National Observatory (TUG) T100 telescope. The data were sent to MPC after being reduced and adapted to the report format. Positions taken from the observations are examined individually and collectively then error levels are given in tables. The sensitivity of the data was found to be sufficient to improve the orbital parameters and was accepted and published by the MPC. Then, using these data, the orbital parameters were calculated and compared with the calculations in the NASA Horizon database.