PC 4 Study Guide Flashcards
(29 cards)
What is the act of maneuvering a satellite into and within the relative vicinity of another?
Rendezvous and Proximity Operations (RPO)
A satellite around which an RPO occurs is called a what?
Resident Space Object (RSO)
What RSO actively assists the RPO?
Cooperative
What RSO does not actively assist or hinder the RPO?
Non-cooperative
What RSO actively hinders the RPO?
Un-cooperative
What is the direction and distance where a satellite payload may function?
Payload Engagement Zone (PEZ)
The direction and distance where a satellite weapon may function is called what?
Weapon Engagement Zone (WEZ)
The preferred reference frame for RPOs is what?
RIC reference frame
A difference in semi major axis will cause what?
Permanent in track drift
A difference in what will produce a 2x1 in-plane ellipse?
Eccentricity
A difference in what COEs will produce motion along a drifting 2x1 in-plane ellipse?
- Eccentricity
- Semi-major axis
A difference in inclination and/or RAAN will produce what?
An oscillating cross-track/out of plane motion
How is helical motion produced?
A difference in semi-major axis, eccentricity, and inclination
Small radial burns will change what?
Eccentricity
Small in-track burns will change what?
- Eccentricity
- Semi-major axis
Small cross track burns will change what?
- Inclination
- RAAN
The path a satellite would take if it did not maneuver is known as what?
Free-flight trajectory
What between waypoints will have a significant impact on the free-flight trajectory?
Time of flight
When conducting RPOs,
Tactics, Techniques, and Procedures (TTPs) are created with what considerations?
- Safety
- Efficiency
- Time
Perch occurs when all COEs match except what?
True Anomaly
What occurs when two satellites are on circular orbits with different semi-major axis?
Linear Drift
Natural Motion Circumnavigation is what?
When two satellites have the same semi-major axis but different eccentricities.
The period to go around Natural Motion Circumnavigation (NMC) is the same as the period of the what?
Resident Space Object (RSO)
The time-of-flight of a v-bar hop is what?
Half the RSO’s period
