It is 3/6/2013 11:51pm and about 20 minutes ago while jogging in Paradise Hills neighborhood in San Diego I saw a black triangular aircraft. There were exterior lights on so there was no effort at discretion. I saw it coming from the southeast moving in a northwest direction. It was hovering momentarily, then slowly moving toward the naval base I think. I was able to view it for approximately 5 minutes. It was making a loud rumbling sound and was above the tree line but lower than a commercial aircraft would fly. I worked in the airline industry for 16 years, and lived near an airport and this was definitely not like any commercial aircraft or helicopter I have seen. Perhaps it was a military aircraft. Whatever it was, it looked really cool and I have never seen anything like that before. I am shocked how slowly it moved and still amazed at the number lights and it's shape. Very interesting!