Computing the perturbation effects on orbital elements of the moon
Other Title(s)
حساب تأثير الاضطرابات على العناصر المدارية للقمر
Dissertant
Thesis advisor
al-Muhammadi, Abd al-Rahman Husayn Salih
Comitee Members
al-Birmani, Muhammad Jafar Fadil
Karim, Layth Mahmud
Khalaf, Salman Zaydan
University
University of Baghdad
Faculty
College of Science
Department
Astronomy and Space Department
University Country
Iraq
Degree
Master
Degree Date
2011
English Abstract
In this research a study of the equation of Keplerian motion to understand the solution of the two-body problem with and without perturbation for the Moon's orbit as a sample of elliptical orbits using two techniques: The first technique depends on actual formula for the Moon coordinates distance and its variation with time in a month then calculate the components of the position and velocity to calculate momentum component to find the orbital elements, which consider the motion with perturbation. The second technique depends on the solution of Kepler's equation of motion by the eccentric anomaly to calculate the Moon geocentric coordinates and its variation with time then calculate the components of the position and velocity to calculate momentum component after convert them to the Earth plane by inverse Gauss matrix to find the orbital elements, which consider the motion without perturbation. The perturbation was found in each element by comparing the results which calculated from two method above.
And its variation with the time for four different months in the year 2010.
It can be noted that in all elements varies with time by perturbation. In addition that, this research gave an explanation and discussion for the common forces that perturb an objects orbit such as, the atmosphere drag, non-spherical earth, solar radiation pressure and third body attraction, where the last one is the main effect of the Moon orbital elements. Also, the time of conjunct between the Sun and the Moon was calculated for all months of the year 2010 to determine the start conjunct astronomical month, which can be used to determine the start of Hegree months.
Main Subjects
No. of Pages
93
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction.
Chapter Two : Coordinate systems and moon coordinate.
Chapter Three : Two body problem without perturbation.
Chapter Four : Perturbations.
Chapter Five : Results, discussion, conclusions and future work.
References.
American Psychological Association (APA)
al-Ali, Haydar Rida Ali. (2011). Computing the perturbation effects on orbital elements of the moon. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-603871
Modern Language Association (MLA)
al-Ali, Haydar Rida Ali. Computing the perturbation effects on orbital elements of the moon. (Master's theses Theses and Dissertations Master). University of Baghdad. (2011).
https://search.emarefa.net/detail/BIM-603871
American Medical Association (AMA)
al-Ali, Haydar Rida Ali. (2011). Computing the perturbation effects on orbital elements of the moon. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-603871
Language
English
Data Type
Arab Theses
Record ID
BIM-603871
