The official description
AARO assesses that this video, whose uploader-defined title is, “UAP from Dec 2019 (East Coast),” is likely derived from an infrared sensor aboard a U.S. military platform operating within the United States Northern Command area of responsibility in 2019. Video Duration: 00:00:34 Video Description: 00:00-00:02: The sensor pans to track an area of contrast. 00:03-00:21: The sensor switches contrast modes while tracking an area of contrast. 00:22-00:23: The sensor pans to track an area of contrast. 00:24-00:34: No content.
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.