The official description
AARO assesses that this video, whose uploader-defined title is “03 January 2021 [CALLSIGN] (Mission) observes UAP,” is likely derived from an infrared sensor aboard a U.S. military platform operating within the United States Central Command area of responsibility in January 2021. A user uploaded this video to a classified network in January 2021. Video Duration: 00:04:57 Video Description: 00:00-01:51: No content. 01:52-02:48: An area of contrast becomes visible near the center of the top half of the frame. The sensor pans to track the area of contrast, keeping it generally within the center of the field-of-view. 02:49-02:55: The sensor zooms in.
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.