After I saw my orange orb in the 1980s (here in Oregon) I searched for years in UFO books, etc. for something that was similar to what I saw. But I didn't find anything. I still haven't found anything, but I've found things that come close. Of course, it's difficult to get an accurate idea, since all I have to go on are the one or two images of someone's orange orb UFO. There's no way to get a good overview based on that. Still, it's interesting when I find things that sound, and look, close to what I saw.
This one, also seen in Oregon, from the Coast to Coast site. Tehre's a comparison with another similar orb UFO.http://www.coasttocoastam.com/gen/page1385.html?theme=light
This site has several images of UFOs in the Vegas area. Scroll down to the orange image he calls an "orange cheerio."
These images of orbs show different colored orbs, including yellowish orange.
Some of the orbs on these sites date to the 1970s, 1980s. Some are recent.