There are several files in this distribution:

neomod3_simulator.f - generates absolute magnitude, orbit, size and albedo of model NEOs
input_neomod3.dat - binned NEOMOD3 model (size distribution in the header)
neomod3.par - example parameter file for neomod3_simulator

neomod2_simulator.f - generates absolute magnitude and orbit of model NEOs
neomod2_simulator_fast.f - faster version of neomod2_simulator (beta version)
input_neomod2.dat - binned NEOMOD2 model (absolute magnitude distribution in the header) 
neomod2.par - example parameter file for neomod2_simulator

neomod_simulator.f - original NEOMOD2 simulator for 15<H<28
input_model.dat - binned NEOMOD2 model (like input_neomod2.dat, but limited H range) 
neomod.par - example parameter file for neomod_simulator

give_me_prob.f - gives source probabilities for a NEO with a,e,i,15<H<28 

diamod_simulator.f - generates size, albedo and absolute magnitude of model NEOs
diamod.par - example parameter file for diamod_simulator

magmod_simulator.f - generates absolute magnitude of model NEOs
magmod.par - example parameter file for magmod_simulator