2003-11-30 - San Diego, CA - Circle

At 3:35 PM I went outside to feed the family of ravens who arrive/calling at that time. I went out onto my upstairs balcony to see how many were there to be fed. They sit on a tall lamp post directly in front of my home. As I looked up, I saw a large white orb/circle traveling from south/east to north/west at a fast rate of speed. It went right behind/past the direction of the lamp post. It looked completely white, not glowing. Holding my extended hand out in line with its travels, it was 1 1/2 the diameter of the end of my thumb. I couldn't judge how high it was in the blue sky but the sky to the east was blue, while to the west, high clouds had already moved in. I ran indoors to look out my window to the north/west to watch it. As it traveled north/west the clouds soon hid it.I have no idea how high the clouds were, so cannot judge how high the object was, although it moved above the clouds. The sighting was no more than two minutes total due to its rapid rate of speed and being hidden above the clouds soon after.