The Thanatos had once again been under the command of the Hellenic navy; it was the small price to pay for the severity of Loki's betrayal. When Aeneas spoke with Grand Admiral Poseidon about the destination where Thanatos would be established, it was not difficult for him to convince him to establish itself as surveillance for the mining planet MS391.
As a mining planet, it was not one of those that could extract the most resources; it was small, and above all, a large part of the planet's surface was forested. This meant that an atmosphere compatible with life surrounded the planet.
The planetary system did not have much to highlight either; it was located at one end of the outer edge, and it only had five planets, including the mining one. But he had something that made him very special to Aeneas.