I was washing my 5 ton van in my driveway.I was using a long handled brush to reach the top half of the van side,which is why I was looking up.Out of the sw a round silver object with a red dot on the bottom, appeared, heading ne. Completely silent. The airport is in that direction so I'm familiar with planes going the same way. That is how I was able to guess the size and speed. I watched it until it disappeared into the clouds over the mountains to the ne, about 50 miles or so away. As it flew, it never varied it's course or speed. I wanted to call someone to report it, but I had no idea who to contact. I had never heard of MUFON until tonight on coast to coast, so I thought I might as well send it in.