| __Chapter 5 -- Orbital Mechanics__ *(Site not responding. Last check: )* |

| | The **orbit's** size, major axis, and the **orbit's** shape, eccentricity, are determined by two factors at orbital insertion: the spacecraft speed and its flight path angle. |

| | A **circular** **orbit** has no varying of kinetic energy because the velocity is always the local **circular** speed and there is also no varying of potential energy because the distance of the satellite from the center of the Earth remains the same. |

| | V must be performed to boost the spacecraft from Earth **orbit** using the Sun as the new primary body to arrive at the target planet at the spacecraft's aphelion point (Point in **orbit** farthest from the Sun which corresponds to apogee, the farthest point in **orbit** from the Earth). |

| www.space.edu /projects/book/chapter5.html (5633 words) |