Phase Catalyst Node

Phase Catalyst Node - Cosmic Anomaly
Class 1 Complex Site

NPCs - Hostiles

First Encounter
Emergent Escort x2 (Frigate Class - )
Emergent Watchmen x2 (Frigate Class - )
Sirius x4 (Platform)

Killing the last Emergent Escort triggers another spawn.

First Wave
Awakened Patroller x2 (Cruiser Class)
Awakened Escort x1 (Cruiser Class)

Killing the Awakened Escort triggers another spawn.

Second Wave
Emergent Patroller x6 (Frigate Class)
Emergent Watchman x3 (Frigate Class - )

(Source)