A body (or a thing, or a celestial body) is shown in orbit around Earth. Two orbital elements are shown: tangential velocity is shown as a red arrow. The green arrow shows the direction of a force of acceleration - inward acceleration.
Flight path of the Apollo 11 flight in 1969. One spacecraft - a mothership - traveled from the Earth to an orbit around the Moon. A lunar lander (a smaller spacecraft) left the mothership and landed on the Moon; Later it left the Moon's surface and went back to the mothership. Then it connected with the mothership. The mothership went back to Earth.

Spacecraft flight dynamics is the use of dynamics to show how forces can act on a space vehicle or spacecraft. The aim is to determine the flight path of spacecrafts.

The angular orbital elements of a spacecraft orbiting (or going around) a central body, defining orientation of the orbit in relation to its fundamental reference plane. On the drawing, the central body is supposed to be in the place where the three straight lines meet:two red lines and one blue line.

Related pages

Books