Unknown over Harmony, NJ

The report, as filed

While relaxing and watching television, I noticed unusual lights in the sky just outside my living room window. I have never seen this before because my house is located in between a mountain and the Delaware River. Having been a small plane pilot, I am pretty sure a plane couldn't reach this low altitude. It was so low, that my immediate thought was that a plane was about to crash. I stepped outside and saw a large low flying object just above the treetops. It was slowly making it's way around my house. I have a vacant lot next to my house so there was easy access to get by me. It was then I realized I was witnessing something out of the ordinary so I ran in to get my phone camera. I also turned the front porch light out so I could see better. I think there were green, red and blue lights. The object was either triangle, square or round. I couldn't tell with the lights were flashing. It continued alongside my house slowly and low to the ground and crossed the river. At this point, I was a little nervous and went back inside and watched from the back door. My back patio is on the Delaware River. The Delaware River separates New Jersey from Pennsylvania. So, I'd be curious to know if anyone in Easton, Palmer, Forks, Bangor, Wind Gap, Pa area, had seen anything. I can't emphasize enough at how slow moving the object was. This passage from my front window around my house was 4 or 5 minutes. I had gone in and out of my house 3 times during the time the object made its way around. One more thing, in the past when I had heard about sightings, people speak of whirling or silence. I did hear some time of motor, but wouldn't describe it as whirling. When the object finally disappeared over a mountain in Pennsylvania, I quickly went to my phone to see the video. Unfortunately, it was not recorded. Has anyone else seen something like this?

Held as-reported from National UFO Reporting Center (record NUFORC #152156). Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.