She said she held her phone up against the window, so I don’t think it was shaking.
But the phone could not have been flat against the window, unless the UFO was within a very narrow frame of view. Any time you aim a cell phone, whether it’s pressing against something or not, there’s going to be some shaking. In any case, there’s not much to tell without a lot of additional explanation, other than it’s a whitish-green light. Like a lot of UFO photos.