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Orbital Mechanics

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

An argument of perigee would be easiest to see in a picture of an orbit with which eccentricity: 0.0, 0.3, or 0.7?

a)

0.0

b)

0.3

c)

0.7

d)

1.0

2.

The angle between the perigee point and the satellite's location measured in the direction of the satellite's motion.

a)

Eccentricity

b)

Inclination

c)

Polar Orbit

d)

True Anomaly

3.

Abbreviated as ω. The orientation of the orbit within the orbital plane.

a)

Low Earth Orbit

b)

Argument of Perigee

c)

Molniya Orbit

d)

Geostationary Earth Orbits

4.

Eccentricity of 0 means the orbit is circular. An eccentricity of 1 or greater means the orbit is not ____ ?

a)

closed

b)

open

c)

equal

d)

big

5.

All circles are ellipses and all ellipses are circles.

a)

True

b)

False

6.

Which ellipse has an eccentricity of 0.0.

a)
b)
c)
7.

Which ellipse has an eccentricity of 0.7.

a)
b)
c)
8.

Which ellipse has an eccentricity of 0.4.

a)
b)
c)
9.

Which of the following orbital parameters describes the size and shape of the orbit?

a)

Semi-minor access, eccentricity

b)

Semi-major access, eccentricity

c)

Semi-major access, Inclination

d)

Semi-major access, True Anomaly

10.

Perigee describes the point in an orbit closest to earth.

a)

True

b)

False

11.

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

a)

True

b)

False

12.

The right ascension of the ascending node is defined from the point where a satellite crosses the prime meridian.

a)

True

b)

False

13.

What eccentricity value does a perfect circle have?

a)

0.0

b)

0.4

c)

0.7

d)

1

14.

A satellite designed to take images to monitor the polar ice caps would have an inclination close to what value(deg)?

a)

0

b)

30

c)

45

d)

90

15.

There is only one altitude for LEO (low earth orbit) satellites.

a)

True

b)

False

16.

Sun-synchronous orbits maintain the same sun angle over time.

a)

True

b)

False

17.

The flight path angle of an elliptical orbit is always nonzero.

a)

True

b)

False

18.

_____ satellite ONLY exists directly above equator AKA sub-satellite longitude

a)

GEO

b)

LEO

c)

Molniya

d)

Polar

19.

The inclination of a _____ orbit is 90 degrees

a)

Ellipse

b)

GEO

c)

LEO

d)

Polar

20.

If the US wants to spy on Russia which orbit would be the best?

a)

GEO

b)

LEO

c)

Polar

d)

Moly

21.

A satellite designed to take images to monitor the polar ice caps would have an inclination close to what value(deg)?

a)

0

b)

30

c)

45

d)

90