The missile was launched upwards at 4am local time. Camera was looking North/NortEast.
Sunlight from early morning at that lattitute was illuminating the contrail form the missile from the east. The West facing side of the contrail is harder to see and dark because of it, that is why it looks weird and misaligned, but in fact the missile is perfectly centered above the contrail column.
I would posit that this contrail is caused by a solid fuel rocket booster, similar to the two white large boosters used in the space shuttle.
Additionally, I have been told that standard missiles do not leave contrails like this after launch. So either it is another missile (sea dragon?, SM-6?) or it could be a rogue launch of a Trident D5 from puget sound (really scary if true because it means SLBM launch codes were spoofed and the nation/world would be in GRAVE danger).
Another comment to be made here is that it looks like the missile was angled to go towards the NorthEast direction at a very steep angle, supporting the idea that it would be targeting a spot somewhere in Canada/north america through which AF1 would be flying through that morning on the way to Singapore.
If the missile was targeting moscow or some such the angle of ascent should be much more shallow.
We need confirmation about a Trident D5 being missing from the SLBM arsenal - you can't hide this. And prosecution by any means of whoever has done this needs to happen fast and at any means to prevent further attempts.