
atomic weight ratios
   0001  1.000000   0001  1.000000
   1000  0.99931697
   3000  6.88131188 3003   3.11111111   3004   4.11111111   3005   5.111111111
                    3009   9.11111111
 05/19/2155
directory
1001.44c 1.111111 many_xs/1001.555nc 0 1 4 55555 0 0 5.5555E+05
1001.66c 1.111111 such_data/1001.777nc 0 1 4 55555 0 0 5.5555E+05 ptable
