2017英特尔ISEF获奖作品摘要 物理学和天文学 Intel Finalist Abstract Physics and Astronomy

获奖作品基本信息

年份	2017
学科	物理与天文学 Physics and Astronomy
国家/州	United States of America

获奖作品名称

Deviation Patterns of the Orbital Trajectories of the Galilean Satellites

获奖作品摘要

This study of the Jovian system aims to determine the patterns of deviation magnitude produced from the orbital trajectories of the Galilean satellites based on three different parameters: theoretical orbital parameters (Model 1), SPICE (Spacecraft-Planetary Instrument C-Matrix-Events) actual positional data (Model 2), and the Jovian gravitational field (Model 3). Holding Model 2 as the control, the most accurate parameter to model the orbital trajectories of the Galilean satellites was determined by analyzing deviation patterns produced from deviation plots between Models 1 & 2 (Deviation Plot A) and Models 2 & 3 (Deviation Plot B). Deviation Plot A produced sinusoidal deviation patterns due to trajectorial micro-oscillations for each satellite caused by trigonometric construction of elliptical trajectories; Deviation Plot B produced linear deviation patterns because of the Eulerian integration algorithm simulating the Jovian gravitational field, causing sinusoidal fluctuations in both Models 2 & 3, resulting in linear increase in deviation. Because the p-value for each t-test performed between Deviation Plots A & B for each satellite was less than alpha (0.05), the null hypothesis (H0) was rejected, thus concluding that there is a statistically significant difference between the orbital trajectory deviations produced from Deviation Plots A & B. The Eulerian integration algorithm in Model 3 can accurately predict future orbital trajectories of the Galilean satellites and any other celestial bodies confined within the Kuiper Belt because the algorithm uses an initial position derived from SPICE which contains state vectors for nearly every celestial body within the Kuiper Belt.

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高中生科研学术活动 英特尔 Intel ISEF 简介

英特尔国际科学与工程大奖赛，简称 "ISEF"，由美国 Society for Science and the Public（科学和公共服务协会）主办，英特尔公司冠名赞助，是全球规模最大、等级最高的中学生的科研科创赛事。ISEF 的学术活动学科包括了所有数学、自然科学、工程的全部领域和部分社会科学。ISEF 素有全球青少年科学学术活动的“世界杯”之美誉，旨在鼓励学生团队协作，开拓创新，长期专一深入地研究自己感兴趣的课题。

学科简介：物理与天文学 Physics and Astronomy

Physics is the science of matter and energy and of interactions between the two. Astronomy is the study of anything in the universe beyond the Earth.

Subcategories:

Atomic, Molecular, and Optical Physics (AMO): The study of atoms, simple molecules, electrons, light, and their interactions.  Projects studying non-solid state lasers and masers also belong in this subcategory.

Astronomy and Cosmology (AST): The study of space,  the universe as a whole, including its origins and evolution, the physical properties of objects in space and computational astronomy.

Biological Physics (BIP): The study of the physics of biological processes and systems.

Condensed Matter and Materials (MAT): The study of the properties of solids and liquids. Topics such as superconductivity, semi-conductors, complex fluids, and thin films are studied.

Mechanics (MEC): Classical physics and mechanics, including the macroscopic study of forces, vibrations and flows; on solid, liquid and gaseous materials. Projects studying aerodynamics or hydrodynamics also belong in this subcategory.

Nuclear and Particle Physics (NUC): The study of the physical properties of the atomic nucleus and of fundamental particles and the forces of their interaction. Projects developing particle detectors also belong in this subcategory.

Theoretical, Computational, and Quantum Physics (THE): The study of nature, phenomena and the laws of physics employing mathematical or computational methods rather than experimental processes.

Other (OTH): Studies that cannot be assigned to one of the above subcategories. If the project involves multiple subcategories, the principal subcategory should be chosen instead of Other.