1/31/2004: Mill Valley, CA, USA

National UFO Reporting Center Sighting Report
Occurred : 1/31/2004 16:45 (Entered as : 01/31/2004 16:45) Reported: 2/2/2004 7:57:50 PM 19:57 Posted: 2/12/2004 Location: Mill Valley, CA Shape: Circle Duration: 15 minutes
Very high altitude object hovered in the eastern sky at very high altitude. Moved rapidly south and again remained stationary for a few minutes. It was a round shiny object. It did not look like an airplane and was too high. A weather balloon maybe? Extremely weird.