Silver disc hovering very highup in a specific triangular pattern.

One silver disc or sphere. Hovering aprox. 5 thousand feet up. I was at Torrey Pines beach on a clear summer day. Aprox. 80 degrees. Wind 0-5 mph from NW. I was in a very spiritual frame of mind, I had been meditating and focusing on healing the planet as well as it's peoples. I was laying down, face up, sunbathing. I noticed an object directly overhead very high up. I thought it was drifting at first and looked away. I looked back 30 sec. later and it was still there. So I decided to watch it. For aprox. ten minutes it hovered in a triangle pattern. It was a very specific pattern directly overhead and was not drifting. I looked away for a moment then looked back and it was still there. After another minute or so I looked way and when I looked back a minute later it was gone . I was with my girlfriend at the time and my sister in law. I didn't mention it to them because they were engaged in a passionate disscusion at the time. I didn't tell anyone about it until years later. After ten years  it happened again.
Date is approximate.  PD