Info Needed: Sonic Asteroids

Hey Everyone!
           I just got home with a Sonic Asteroids upright. It is in
nice shape, but isn't working and has an Atari-made PCB w/ the rate
multiplier board on it. Can someone give me any history/info on this
game?? i.e. where it came from, etc. I have never seen one before, is
it "rare"? Here are pics of it up on my pics page:
http://www.erinet.com/jamesm/Pictures.htm

                        Thanks Guys!
                                James

-- 
 My Homepage!  http://www.erinet.com/jamesm/
 mailto:jamesm@erinet.com