That was a real interesting job ...
you try and figure out how to keep a microwave dish bolted to a jalopy
bouncing around and over the hills and rills of the Moon and still
pointed within one degree of boresight on a targer a quarter of a million
miles away.

WOW, REALLY!

The little I remember is seeing the rover bucking around like a ride at a
Texas bar,

I prefer the analogy of a double-jointed hooker on dollar night, but you got
the right idea {;-)

That would be an interesting problem. Tell us a little about it when you
get the chance.


Pure optics. A small telescope bolted onto the dish focused on Earth. Put
the target in the middle and push the button marked "track". Nothing else
remotely that bright (*) to track on, so the servos that were connected to
the dish simply kept the target in the center of the screen.

(*) The only caveat is that you had to do it with the sun WELL out of the
line of fire.

Jim