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More than four decades were needed to prove the existence of small bodies beyond Neptune's orbit. Its discovery in 1992 was the milestone of our knowledge which is now known as Trans-Neptunian Objects (TNOs). More than a thousand TNOs have been discovered so far and hence, their physical and or...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/11698 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | More than four decades were needed to prove the existence of small bodies beyond Neptune's orbit. Its discovery in 1992 was the milestone of our knowledge which is now known as Trans-Neptunian Objects (TNOs). More than a thousand TNOs have been discovered so far and hence, their physical and orbital characteristics have been explored extensively which are closely related to the Centaurs (small bodies residing between Jupiter and Saturnus). By selecting data from the JPL Small Body Data Base Engine, 673 Centaurs and TNOs are known to have good orbital elements measurement. Together with four sets artificial data, each of 640 random generated objects, their orbital evolutions into inner Solar System region were investigated for 1 Myr. A well-known software package SWIFT was used to integrate and investigate their orbital dynamics. Results show that mostly Centaurs have chaotic orbits and some of them are ejected out to outer Solar System caused by Jovian planets perturbations. Number of the ejected Centaurs within the first-half of the integration time is numerous than that of the second-half one. There is a tendency that number of 3:2 Neptune resonance objects reside in Centaurs region reaches maximum at 500 thousand years. Very small fraction (-1%) of Centaurs and TNOs (Scattered Disk) could evolve entering to Mars-crossers. |
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