X(0) - Sigma(plus):

A1 =  ( 2.3, 4.1 )   Fm            R1 = ( 1.2, 1.5 )  Fm

A3 =  ( 1.7, 3.2 )  Fm             R1 = (0.96,1.28)  Fm

    Model NSC97

X(minus) - Sigma(minus):

A1 = ( 0.15, 0.34 )  Fm          R1  > 2200  Fm

A3 = ( 0.1, 0.23)  Fm             R1  > 3300  Fm

    Model NSC97