OEM 3

Question 1

What is the act of manuevering a satellite into and within the relative vicinity of another?

Answer 1

Rendezvous & Proximity Operations (RPO)

Question 2

What is the satellite around which an RPO occurs?

Answer 2

Resident Space Object (RSO)

Question 3

A satellite that does not actively assist nor hinder RPO is called?

Answer 3

Non-cooperative

Question 4

A satellite that actively hinders RPO is called?

Answer 4

Uncooperative

Question 5

What is the spatial area (direction and distance) where a satellite payload may function?

Answer 5

Payload Engagement Zone (PEZ)

Question 6

What is the spatial area (direction and distance) where a satellite weapon may function?

Answer 6

Weapon Engagement Zone (WEZ)

Question 7

Which direction does relative motion in the RIC frame trend?

Answer 7

Clockwise

Question 8

What is the origin, fundamental plane, and principle direction of the RIC frame?

Answer 8

Origin: Satellite
FP: Orbital
PD: Radial Vector

Question 9

A difference in which COE causes permanent in-track drift?

Answer 9

Semi-major axis

Question 10

What is directly related to the difference in semi-major axis?

Answer 10

Drift Rate

Question 11

What does a difference in eccentricity produce?

Answer 11

A 2x1 in-plane ellipse

Question 12

2x1 in-plane ellipse size is directly related to?

Answer 12

The difference in eccentricity

Question 13

What is the period of the 2x1 ellipse?

Answer 13

The same as the RSO’s orbit

Question 14

A difference in which COEs will produce motion along a drifting 2x1 in-plane ellipse?

Answer 14

Semi-major axis & eccentricity

Question 15

What is directly related to the difference in eccentricity?

Answer 15

Radial motion

Question 16

A difference in which COEs will produce oscillating cross-track motion?

Answer 16

Inclination & RAAN (out-of-plane)

Question 17

A difference in which COEs will produce helical motion?

Answer 17

Semi-major axis, eccentricity, & inclination

Question 18

Which burns change eccentricity?

Answer 18

Radial

Question 19

Which burns change eccentricity and semi-major axis?

Answer 19

In-track

Question 20

Which burns change inclination and/or RAAN?

Answer 20

Cross-track

Question 21

What is the path a satellite would take without maneuvering?

Answer 21

Free-flight trajectory

Question 22

What significantly impacts free-flight trajectories?

Answer 22

Time of Flight between two waypoints

Question 23

What are the 3 main considerations in developing prox ops TTPs?

Answer 23

Safety
Time
Efficiency

Question 24

What occurs when all COEs match except true anomaly?

Answer 24

Perch (co-orbital)

Question 25

What occurs when two satellites are on circular orbits with different semi-major axes?

Answer 25

Linear drift

Question 26

What occurs when two satellites have the same semi-major axis but different eccentricities?

Answer 26

Natural Motion Circumnavigation (NMC)

Question 27

The period around the NMC is the same as what?

Answer 27

Period of the RSO

Question 28

The NMC 2x1 ellipse is twice the width in the _____ direction as the height in the _____ direction.

Answer 28

In-track, radial

Question 29

What is half of an NMC (returns to the start if the next maneuver is missed)?

Answer 29

V-Bar Hop

Question 30

What allows the chaser to remain above or below an RSO for extended periods of time by creating consecutive waypoints?

Answer 30

Dynamic Station Keeping (DSK)

Question 31

What is half of a DSK (chaser ingresses along the radial axis and drifts away if the next maneuver is missed)?

Answer 31

R-Bar Hop

Question 32

What is placing waypoints around the RSO to produce a constant-range trajectory?

Answer 32

Forced Motion Circumnavigation (FMC)

Question 33

What 2 effects result from adding more waypoints to an FMC?

Answer 33

1. Use more fuel
2. Path is closer to a circle

Question 34

Which direction does a positive RIC burn trend?

Answer 34

Up and to the right

Question 35

Which direction does a negative RIC burn trend?

Answer 35

Down and to the left