I was intrigued by the name Lepton, as I had never heard of the place before. A little investigation showed me the place is in West Yorkshire in UK, a small area.I also discovered there have been UFO sightings in that area.
Here is one reported sighting:

Mrs. Gloria Gill, of High Green, Lepton, also reports seeing an unusual aircraft early on Tuesday morning," December 30, 2003, "after she was watching a film at 12:30 a.m."

"'I thought it was a plane coming in too low because we are on a few flight paths here,' she said."

"'But as I watched it, it was not moving, it was just hovering. I opened a window but could not hear an engine.'"

"'It hovered for about a half hour over the houses in Rowley Lane, then went back towards Woodsome. I saw one half an hour later over Woodsome.'"