Patrol class Close Escort

Patrol and Surveillance ships largely observe space, keeping track of things that are there and watching for things that aren't supposed to be.

Patrol Ships (sometimes AKA Patrol Boats) are usually smaller vessels, lightly armed or unarmed, but generally with plenty of sensors, designed to maintain order in an area of space among people and ships who are inclined to be orderly in the first place. They tend to be used for space-traffic, safety and compliance patrols in areas without a lot of armed threats; a Patrol Boat may have enough firepower to deter minor threats, but isn't usually employed in places where even minor threats are likely.