Emeryville, ca around 2:00pm on november 28 it was a cloudless day with a light blue sky. warm and sunny. in our complex we have a spa that faces north. that day, i decided to go and use the spa to sooth my sore back. as i was sitting in the spa and facing north, i was looking above the roof of my complex and noticed something glittering up in the sky above my building up in the sky. i notice something moving back and forth in a zig-zag fashion. it would come closer then it would zig-zag back like 10 miles or so and then zig-zag back and spin. you can see it in the video i took of with my samsung 5 camera phone. the whole thing lasted about 3 minutes. but, i am sure this was already there when i arrived at the spa. due, to the brightness of the day, i was discouraged from filming more due to battery life and storage. i was mesmerized by the way it moved and exited to see it fly like that. i loved it!! not my first sighting. i am 65 years old and i have seen them throughout my life. i know they are there. i have always known they are here.