Assignment 1: pgs. 1-2

Question 1

How long is the period of a satellite in LEO?

Answer 1

90-120 minutes

Question 2

What is the eccentricity of a GEO-stationary orbit?

Answer 2

i = 0 and e = 0

Question 3

The same sun angle or shadow every orbit is a characteristic of what orbit?

Answer 3

SSO Orbit

Question 3

What operational consideration describes the portion of Earth’s surface that is geometrically visible from the satellite’s position in space?

Answer 3

Field of Regard

Question 4

What operational consideration describes the instantaneous coverage area capable of being seen by the payload?

Answer 4

Field of view

Question 5

What operational consideration describes the length of time a satellite has line of sight to a point on Earth?

Answer 5

Dwell time

Question 6

Range, abbrev., and descriptor for Semi-Major Axis

Answer 6

Range: 0 - infinity
Abbrev.: a
Descriptor: size

Question 7

Range, abbrev., and descriptor for Eccentricity.

Answer 7

Range: 0-1
Abbrev: e
Descriptor: shape

Question 8

Range, abbrev., and descriptor for Inclination.

Answer 8

Range: 0-180
Abbrev: i
Descriptor: tilt

Question 9

Range, abbrev., and descriptor for RAAN

Answer 9

Range: 0-360
Abbrev: Ω
Descriptor: Twist

Question 10

Range, abbrev., and descriptor for Argument of Perigee

Answer 10

Range: 0-360 degrees
Abbrev: w
Descriptor: Orientation

Question 11

Range, abbrev., and descriptor for True Anomaly

Answer 11

Range: 0-360 degrees
Abbrev: v
Descriptor: Location