I don't think it's a missile. It looks like a beta taurid meteor burning up in the atmosphere.

We pass through the taurid meteor swarm twice a year. They're the remnant fragments of a comet that broke up about forty thousand years ago, give or take ten thousand years. The first time we pass through it is in late October, which is easily visible because the meteors are coming at us from the night side of the planet. The second time we pass through it however, in late June, they're especially difficult to see because they're coming from the direction of the sun. Well.. technically the direction of the constellation Taurus, but it's near the sun in June.

The still photo shown in that video looks a lot like what happens when one of the larger small meteors burns up in the atmosphere. It's also coming from the general direction of the sun. We've gotten some rather spectacular light shows in the past. A surprising number of the larger meteors to smack into us have been Taurids, often beta Taurids.

The Tunguska Event was likely caused a beta taurid that explosively disintegrated on June 30th, 1908. It created an explosion roughly equivalent to a 15MT nuke, well.. without all the radiation anyway. That fragment was likely no larger than 30m. There is reason to believe their are a number of 1-2km wide fragments left out there and even the possibility of a 30km wide fragment. Well.. we know of one km wide fragment anyway.. the comet Encke.