AE Orbit Types Assessment (Part 1)

All circles are ellipses and all ellipses are circles.

Kepler has two different sets of laws of orbital motion. One set applies to planets orbiting the Sun, and the other set applies to man-made satellites orbiting the Earth.

Label each ellipse with the correct eccentricities.

To make the pictured ellipse more circular, you should move foci A and B _________.

What is the name of the "radii" labelled A in the pictured ellipse?

A circular orbit has an apogee roughly twice the altitude of its perigee.

Label the position indicated with the A in the pictured orbit.

Both size (semi-major axis and/or altitude) and eccentricity play an important role in determining the period of the orbit.

The Voyager 1 spacecraft was launched in 1977 to explore the solar system and beyond. In 2008, it was entering the region between our solar system and interstellar space known as the heliosheath. It is the furthest manmade object from the Eatch and it continuing its journey into the unknown. Based on what you have learned about orbital elements, the eccentricity of Voyager is greater than 1.

This philosopher believed that everything rotates around the Earth.

Who developed the Keplerian Element Set which describes the orbital parameters of satellites' orbits?

Many of Kepler's theories were based on the documentation of this philosopher that he worked with for a short time.

This scientist was the first to use a telescope to help prove heliocentric theory.

This philosopher was the first to propose heliocentric theory.

_________________ is the angle between the Earth’s equatorial plane and the

plane of the orbit. It describes the tilt of the orbit.

The point in an orbit that is closest to the Earth.