in *.int 1-2 means p1/2 p3/2 pn.int 1-2 means proton, 3-4 means neutron.
spe j1 j2 j3 j4 J T
convert J-scheme TBME to M-scheme
1-6 means proton, 7-12 means neutron, 13 Lambda, 14-16 Sigma
from 1-6: 1/2,-1/2,3/2,1/2,-1/2,-3/2
Positions store as binary form in an integer.