On the morning of August 19th at approximately 06:20 hrs. Myself and 2 other people witnessed a commercial airplane in the sky above Jamaica Queens. Trailing at a very close proximity to the plane was an egg shaped metallic looking object. It was trailing the plane at the same distance (which was very close to begin with) for approximately 20 seconds. It then began getting closer to the airplane until it looked like it was within several feet of the tail section and it remained there for the remainder of the siting which lasted only a couple of minutes. The direction of flight was Northwest and it would have flown right over JFK airport before we witnessed it. This was a very clear and bright morning. How is it that nobody else saw this? I have never seen anything like this. I just can’t get it out of my head. This object had no wings. It was a grey metallic object (same color as the plane). I know I’m not crazy because other people with me saw it. I am sick that I didn’t film it. It would have been so clear if I did. I think the pilot might have known something was there because he dipped his wings a couple of times (like he was looking for something).