small, white egg shaped craft.I was in the passenger seat travelling nb I-5 in the vicinity of Corral Hollow road.Was observing a white passenger jet, at a low altitude and low speed as it was approaching I-5. As I observed it, trying to see its flap position as I always do, I noticed a white object that at first I thought had fallen off the plane. It slid to the rear of the plane, and then began to rise in altitude. I kept my eye on it to figure out if it was a weather balloon. The object then began to pass directly overhead, at such an angle that I could still view it out of the side window (slightly to the east of perpendicular). I then spotted 5 more small circular shapes with a weird shadowy look, in + configuration, and one dead center. The 6th object was then out of formation and slightly to the north of the formation. When all the objects were directly overhead, they were hazy, and not quite "white".