The official description
AARO assesses that this video, whose uploader-defined title is, “IIR 1 666 S0151 23/Video Footage of Unidentified Aerial Phenomenon (UAP) captured by fifth generation aircraft on 20 Jan 23,” is likely derived from an infrared sensor aboard a U.S. military platform operating within the United States Northern Command area of responsibility in 2023. A user uploaded this video to a classified network in July 2023. Video Duration: 00:01:03 Video Description: 00:00-00:31: A sensor tracks an area of contrast, keeping it generally within the center of the field-of-view. 00:32-01:03: The area of contrast briefly moves in and out of the field-of-view from the top of the frame as the sensor pans to track it.
Quoted from the U.S. Department of War, PURSUE UAP releases. Read every file for this incident in Official files or at war.gov/UFO.