We saw two bright lights traveling across the night sky at a high rate of speed in some type of formation.

At approximately 9:10 PM on Sunday August 20, 2007, my son Matthew and I were sitting outside on my dock talking and admiring the night sky.
Looking to the North West Matthew asked, “What or those two lights up there? Planes?” I looked to where he was pointing. It was to the two bottom stars of the big dipper. There were 2 bright lights traveling across the sky from west northwest to the east southeast. They were not flashing. They did not have any color like an aircraft light. These were single lights. The distance apart was approximately 3 inches at an arms length. They did not change direction nor did the space between them change from what I could see. They were traveling much faster then any aircraft that I have ever seen and the lights were much brighter. The total time they were in my view until out of view was no more then 90 seconds.
As they passed overhead I did not here any engine noise as from an aircraft. I told my son that it is probably the ISS or possibly the shuttle but today I looked up their orbit at the time and they were nowhere near the west coast of California last night.
We could not identify them as any kind of craft. Just two bright lights traveling across the night sky at a high rate of speed in some type of formation.
August 19 fell on a Sunday.  Probably the ISS and Space Shuttle, which had undocked.  PD