SKYWATCH INCIDENT REPORT PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON Date: 04:39 02/04/2023 Callsign: UAL1580 Origin: ORD Status: Closed Aircraft: B738 Destination: CYVR POD: DEN Tail Number: New Destination: Reporting Facility: ZLC Operator: UAL Operator Type: Commercial Paged: YES REMARKS Aircraft reported an unidentified aerial phenomenon above them while WNW bound at FL380, 60NM E of BIL. The unknown phenomenon had lights and was reported as orbiting. No evasive action reported. AWO advised. SKYWATCH INCIDENT REPORT | DATE: 2023-02-04T04:39 | POD: DEN | PAGE 1 of 1