SKYWATCH INCIDENT REPORT PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON Date: 05:20 02/22/2023 Callsign: UAL1325 Origin: DEN Status: Closed Aircraft: B739 Destination: PDX POD: DEN Tail Number: New Destination: Reporting Facility: ZLC Operator: UAL Operator Type: Commercial Paged: YES MOR Init: YES MOR ID: ZLC-M-2023/02/21-0008 REMARKS Aircraft reported an unidentified aerial phenomenon off the front side while NW bound at FL350, vicinity of BOI. The unknown phenomenon was lights in triangular/linear pattern approximately 15-20 degrees above horizon. Lights are consistent with known Starlink satellite train. SKYWATCH INCIDENT REPORT | DATE: 2023-02-22T05:20 | POD: DEN | PAGE 1 of 1