Edmund Halley, the astronomer who discovered Halley’s comet, could recall 2 accounts involving unidentified crafts.
His first experience was in March of 1676, when he saw, as he said:
A vast body apparently bigger than the moon.
He estimated it at 40 miles above him. He also stated that it made a noise, like the rattling of a great cart over stones.
After estimating the distance it traveled in a matter of minutes, he came to the conclusion that it moved at a speed greater than 9,600 mph.