Whats going on with the gravity there I wonder.
Additionally, how does gravity plating work [isn't that how they create artfiical gravity in Trek] in such large open spaces?
There's probably some technobabble explanation that I hope they don't bother with.
In any case, either the plates are screwed up and switching the gravity around the ship, or they're not functioning. If they're not working, the ship must be close enough to Earth to be affected by her gravity. To be most accurate (within the sci-fi tech bounds they've created), it would be nice (but was probably beyond the budget) to see brief moments of zero gravity, too, as the ship pitches and rolls down into the atmosphere.