This video was reportedly recorded on April 23, 2010 near the Sacramento International Airport. For reasons not stated, the person was recording planes taking off when they saw a strange light near a plane. The light shot off the opposite way at a high speed.
Given the quality of the video, it's hard to say what is is. I'd still like to know what the person was filming airplanes at the airport to begin with. But whatever it is, it's part of an ever increasing amount of UFO sightings in Sacramento.