a bright blue glowing orb that shot out of space made a 90 degree turn shot accross a mountain range then another 90

It was summer in the mid 80s myself and 3 freinds were waiting at the gate to lake skinner to go fishing. It was 3-4 am on a crystal clear california summer night. There were many bright stars in the sky. 
My friend and I were facing the mountains behind lake Skinner and were looking at the stars in the sky. We both saw a bright blue glowing orb come out of space moving very very rapidly i thought it was a shooting star at first.  It came out of space from the size of a pinprick to a larger size made a 90 degree turn over the mountains shot accross 10-20 miles of mountains in a second then made another 90 dergee turn and shot back out into space and dissapeared. 
There is no airplane that i know of that can move that fast, shooting stars and comets don't make right angle turns. I never believed on UFOs or any of that stuff until i saw what i saw. 
My friend was disturbed about the sighting and after a short disscussion confirming that we both saw the same thing he refused to ever talk about it again. The other person that was there never saw it since it all happened very very quickly.