Jato 'Ratum was a Sangheili and part of a mining expedition of The Banished.

He, a Jiralhanae and several Unggoy went to a mining zone on Installation 00, littered by wreckages of Covenant ships. Shortly after arriving there Jato 'Ratum and the Unggoy felt that something was wrong, but the Jiralhanae wavered that.

The Unggoy started digging with the mining equipment. Shortly after Jato 'Ratum felt the winds change and made for cover. A huge blast hit exactly where he stood, burning his sword arm and temporarily blinding him.

After he heard the Jiralhanae he became unconscious. When he awoke he was the only surviving member of the Retriever attack on his mining party.[1]