Have you checked to see if there were any rockets launched on the other side of the world say 30min before you saw that? It's not unusual to be able to see second stage burns. I recall that several folks saw one some months back. I think it was a SpaceX second stage burn. Then of course there are Iridium flares ( reflections off the solar panels at certain times after sunset here). Sky Safari can tell you when the Iridium says are passing overhead. And the ISS is another traveller with reflective ability.
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