EMICOLG generates the gn used for Fourier Bessel inversion from the Gn 's in EMICOBG.DAT.
For a map of ISMAX=50 and DELSR=3.0 one will have a reconstruction of 101**3 voxels and with each map unit equal to 3 pixels.
This simply sets the G0 values of the combined data to the profile provided. The format of the file is the same as the profile file in EMICOMAT and an example is found in HARRISON_FIT.DAT