This footage was captured by an all sky camera located in Courtenay, British Columbia, Canada on Sep. 13 around 8:19 pm local time (Sep. 14 at 03:19 UTC). The footage captures what appears to be a fireball that was widely seen in the British Columbia, Washington, and Oregon.
The fireball moved in a east to west direction and appears on the bottom portion of the video. East appears towards the left of the video, and west appears towards the right. North is on top, and south is on the bottom.
The video is cropped in the second portion of the video and is heavily pixelated. At the end of the video, there is a single frame stretched out over 6 seconds that is a composite/long exposure of the fireball as it traveled across the sky.
Credit: All Sky Camera Network / @ObservingSpace
More: AMS Meteor Society heat map of sightings of the Sep. 13 fireball across the Pacific Northwest.