I was looking up at the night sky hoping to see a ufo from my backyard. i was watching the airplanes go over my house and i let my eyes follow one of them and then that’s when i noticed something strange about the object. as i watch it go overhead it looked just like a regular airplane because it had the same shape but it do not make any noise. it was heading in a southern kind of direction and i noticed that the lights on the back of this aircraft had only three and they were all kind of dim so not really powerful or bright and the lights moved in a pattern like the pattern of the dots that you see in video games when the game in loading. the pattern was like this: 1,2,3,stop, 5 seconds later,1,2,3 repeated over and over.(the numbers are to represent one of the lights flash) i also noticed that it was gliding smoothly across the sky not too fast or slow. the shape of this craft was probably ovular from judging where the lights were and how they were position it must have shape shifted its shape to its regular shape after i got further away but it was dark so i couldn’t really tell. at first, i thought it was nothing and when i noticed the strangeness of this craft i was like what the heck is that and i got excited and then i started comparing it to all the other aircraft's that flew by. while doing this i made sure that i was paying a lot of attention of the aircraft's’ shape,size, and the lights and noise. i soon lost sight of the mysterious aircraft as it flew further away to the south.