  We consider the possibility of the detection of a chameleon effect by an
earth orbiting satellite such as LAGEOS, and possible constraints that might be
placed on chameleon model parameters. Approximate constraints presented here
result from using a simple monopole approximation for the gravitational field
of the earth, along with results from the Khoury-Weltman chameleon model, solar
system constraints obtained from the Cassini mission, and parameter bounds
obtained from the LAGEOS satellite. It is furthermore suggested that a
comparison of ground-based and space-based multipole moments of the
geopotential could reveal a possible chameleon effect.
