Five family members observed black, S-shape object, rotating counter-clockwise, due east, over Epping,NH.

On the evening of September 29, 2023, my wife and I met our son at the Park-Ride parking lot in Epping,NH, about 6:30 PM where we picked up our two grandchildren, ages 10 and 13. There was plenty of daylight. Suddenly my wife pointed out the passenger-side front windshield and said, "What is that flying up there?" It took me a moment to see exactly where she was pointing, but then I saw what she was talking about. A flying object, in the shape of a pudgy S, was rotating counter-clockwise on its axis, moving unswervingly due east, at a constant speed. It was black. There were no observable lights. There was no detectable sound. All of us watched it until it moved out of sight, not climbing vertically, but moving on a steady, horizontal path. One of us watched the object through a spotter scope for about 20 seconds.
On the website reddit there are several postings about a black, rotating, S-shape object.
If you Google "UFO, drone, or weather balloon above Reagan National Airport" you will see a video that matches exactly what we saw flying over Epping on September 29, 2023.