This part aims to make a general presentation of the different notions in orbital mechanics. The presentation aims to be usable and focuses on the application and not the demonstration of the different mathematical relationships. Each chapter is followed by a computational application to give an example of usage.
The formulas are simplified do not take into account relativity, orbital disturbances or flattening and the geoids of the planets.
The units used come from the international system (metric) but the basic units are more often km,kg,s instead of m,kg,s.
The first level will focus on periast and apoastre orbital maneuvers as well as economic transits.
In order to facilitate understanding, this part is divided into 5 chapters: