Astrodynamics

Code	15241
Year	1
Semester	S2
ECTS Credits	6
Workload	TP(60H)
Scientific area	Aeronautics and Astronautics
Entry requirements	-
Learning outcomes	The main objective is to introduce the fundamental concepts of Astrodynamics. The understanding of these fundamental concepts will allow students to carry out their final work in more advanced studies on Spacecraft Orbital Motion and the Satellite Attitude Control. The other objective is to teach the student to work with modern sources of information in the field of Astrodynamics.
Syllabus	1-Introduction. Some characteristics of the solar system and the Earth. 2-Two-Body Problem. Equations of motion. Integrals of motion. True anomaly. Satellite orbit. Radial and transverse component of the satellite velocity. Eccentric anomaly. Kepler equation. Orbit elements. Satellite position and velocity as a function of time. Elliptical, parabolic and hyperbolic motion. Orbits in 3D. 3-Determination of the orbit via observations of satellite position/velocity. 4-Orbital transfers. Hohmann transfer. Bi-elliptical transfer. Interplanetary trajectories. Change of the orbit plane. 5-Evolution of the orbit. Gaussian equations. Influence of the Earth non-sphericity. Influence of the atmosphere. Satellite reentry. 6-Basic notions of N-Body Problem. Three-body problem. Lagrange points. 7-Spacecraft attitude dynamics. Passive and active control systems. Sensors and actuators. 8-Modern problems of Astrodynamics. Tethered systems. Constellations. Formation flying. Nano-satellites. Space debri
Main Bibliography	Howard Curtis, "Orbital Mechanics for Engineering Students", 4th Edition. Elsevier, 2020, pp. 792. Chobotov, V.A. (Editor), “Orbital Mechanics”, AIAA Educational Series, 1996, pp. 447. Hughes, P.C., “Spacecraft Attitude Dynamics”, John Wiley, 1986, pp. 564.
Language	Portuguese. Tutorial support is available in English.