> Can somebody check my math? I didn't think it would turn out this bad.

Your math is probably right but I think that a scheme could be devised to
look at the shade of the lander instead, which would be significantly
larger at times and might project some details. I do not know where the
lander lies but a shadow of at least 50 meters could be counted on I
think. Also the lander is probably shiny metal and its reflectance is high
enough that it can be picked up in a blurred pixel or by some other means.

Of course you could use the retro reflectors if you had a big enough
laser.

Peter

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