Forgotten Frontier Recursive Depot

Forgotten Frontier Recursive Depot - Magnetometric
Class 3 Archaeology or Salvage Site
NPCs - Hostiles

First Encounter
Emergent Preserver x4 (Frigate Class - )
Awakened Defender x2 (Cruiser Class)

Killing the last Awakened Defender triggers the next spawn.

First Wave
Awakened Defender x3 (Cruiser Class)
Awakened Upholder x4 (Cruiser Class - )

Killing the last Awakened Defender triggers the next spawn.

Second Wave
Awakened Upholder x2 (Cruiser Class - )
Emergent Defender x2 (Frigate Class - )
Sleepless Upholder x2 (Battleship Class - )

Killing the last Sleepless Upholder triggers the next spawn.

Third Wave
Awakened Upholder x1 (Cruiser Class - )
Emergent Preserver x2 (Frigate Class - )
Sleepless Upholder x3 (Battleship Class - )

(Source)