On Mon, 25 Mar 2013 11:44:53 -0000, "GordonD"
wrote:

"Apollo - The Definitive Sourcebook" by Rich Orloff and David Harland has
the impact points. For instance Apollo 10's S-IC was 30.188 deg N, 74.207
deg W while Apollo 11's was 30.212N, 74.038W. I don't know how big an area a
location to that accuracy would cover.

Those are pretty accurate locations. At the equator, 0.001 degree is
about 100 meters, and it is less than that at those locations - if
they are rounded properly and not converted from less-accurate minutes
and seconds.