original geoinstruments files (mag and rad) concatenated
then trans(magtrans,radtrans) run over them to increase the field length
of the fid field by 1 character and make the record
length constant.
also in the mags to fix the format of the negative values for
diurnal and igrf and make them F10.2
 
before data load into agp pull off all with use=0
 
the dfn file describes the final result
 
the same is applied to both area C and area E to make
loading simpler.