A very very large huge X flying in and out of the blue atmosphere

At 9:50 a.m. PST. While waking up in my RV looking out through the roof event I noticed a very very large (X) in the sky I immediately put my shoes on and grabbed my cell phone and ran outside in my boxer underwears to view this very large object. I called my neighbor and he was able to run outside and view it also! what I saw was a very large huge (X) that was going in and out of the blue sky and the morning sun rising in the east was making the object gleam. I was at aww! witnessing how large this object was. My neighbor and I both watched it from two different locations approximately 100 ft apart it kept a steady path flying West towards the Pacific Ocean coming from the East as it disappeared back into the blue. We kept scanning the sky towards the West never to see the object again until a minute later way in the distance a sparkling Speck sparkled for a second or two I can only think it was the reflection coming from the Sun.