2018-02-06 - Hagerstown, MD - Unknown

Strange lights, low in sky, hover and then move slowly away.

I live near Hagerstown Airport and I walk around my neighborhood at night and am up early in the morning. I entered a date and time for this form but I see strange objects flying in the area often. Usually I see a stationary light in the sky just above the tree line that looks like one set of lights that you'd see on a sports field. It stays in one place for several minutes and then slowly starts to move across the sky, always quite low. There is usually no sound, though sometimes I hear a very low wooshing sound. I also hear prolonged wooshing noises late at night when I'm in bed. They do not move away quickly, but seem to stay in the area for several minutes. I look but see no lights or anything which surprises me because it sounds like something is hovering very low above the house. My entire family have been woken up from these sounds before. I assume these are maybe experimental aircraft since I'm less than a mile from the airport, and I know there are restricted areas there and lots of stories about stuff like this, particularly about the Sierra Nevada Corporation. I should add that I only see and hear these strange things after dark, so maybe they want to keep things secret...