Logical explanation for a short, instantaneous streak in the sky? It disappeared as quickly as it came and it made a sharp curve at the end?

Let me begin by saying I do not believe in ghosts or spirits, heaven or hell. However I cannot logically explain what me and my friend both saw (I will be as objective as possible with the facts). We went to Snake Hill (Laurel Hill) in New Jersey which used to be a mass grave sight for the "unknowns" in the community who had no family to claim them when they passed away. 4,500 bodies were discovered and removed in 2002. We explored on Halloween this past weekend and at 2:30 am we began walking back to the car when we saw a bright white streak in the sky almost immediately above us that lasted less than a second. It disappeared as quickly as it came, and it curved at the end as it disappeared. I could not tell how close or far it was from us, although if it was in outer space, it needed to be a tremendously large phenomenon because of how bright it was (brighter than the north star). I also doubt it was a star or comet because of how it suddenly and sharp it curved at the end. So then what did we see? This is not a hoax, this is a very legitimate question for a very baffled and curious man.