Cylinder-shaped UFO over Santa Clara, California

On November 11, 11, a witness was going to work in Santa Clara (in California). At this moment, a bright and long cylinder-shaped UFO is appeared in the sky. What is it?

Witness report:

Was going to work, stopped for Coffee. Looked up, saw bright Yellow, Long Cylinder, clearly filled the sky. Very Strange. Never saw anything like before or after. Big Object, was still.

Was busy, going to work. Got in my car, and left.

Feelings, of knowing it was something peculiar, and knowing the area. Things have always been seen to be strange in the Bay Area. More so in Silicon Valley.