FE_METHOD
FE_DEGREE
FE_NPOINTS
FE_IN_POS
FE_OUT_FILE
One can use an awk like to make a grid:
awk 'BEGIN{for (i=100;i<25200;i=i+500) \ {for (j=750;j<5400;j=j+200) \ {printf "%i %i \n",i,j}} \ exit}' > positions.in
and a card in the input file:
FE_IN_POS positions.in
This step used to be named ''FlatEarth''. This explains the prepended FE_'s, instead of some abbreviation for reference phase.
Example input section:
c c comment ___ COMPREFPHA ___ c FE_METHOD porbits FE_DEGREE 3 FE_NPOINTS 201