The official description
The United States Central Command submitted a report of an unidentified anomalous phenomenon to the All-domain Anomaly Resolution Office (AARO) consisting of four minutes and 53 seconds of video footage from an infrared sensor aboard a U.S. military platform in 2020. Video Description: 00:00-00:12: An area of contrast enters the sensor field-of-view from the bottom left corner of the frame. The sensor pans to track the area of contrast, keeping it generally within the lower left quadrant of the frame. 00:13-00:40: The area of contrast intermittently loses distinctiveness against the background, seeming to disappear and reappear irregularly.
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.