A bright silver cigar shaped object was floating, completely motionless in the sky and then disappeared in about 10 seconds

I was driving along mountain view and via Linda when I noticed something really reflective and shiny in the sky. It was very odd and out of place to see, especially considering it was the middle of the day when the sun was out and at its hottest/brightest. It looked like a cigar-shaped, bright silver object that just floated in the sky, completely motionless. I couldn't hear any noise coming from it either, like you typically do when you see a plane or drone. Then when I glanced down at my phone for maybe 2 seconds to see the picture that I posted here, when I looked back up it was just completely gone. Any type of man made aircraft would have slowly moved out of sight until it was too far away to see and it wouldn't have just completely disappeared in 2 seconds from that distance. I have actually seen something like this before, about a year ago, with other people who witnessed it too. It had the exact same physical characteristics and was also silent and motionless in the sky for seconds until it just completely disappeared. I don't have pictures of that experience but it looked almost identical.