$\displaystyle y = A_o \exp\left[-\frac{(x-x_o)^2}{2\sigma^2}\right] + C$
PARAMETER NOTE VALUE ERROR
Ao -- 1.0708307668e+07 5.8179418854e+11
xo -- 8.0091747068e+07 6.6692732734e+07
s -- 1.2271506521e+10 3.3337355277e+14
C -- -1.0708076150e+07 5.8179418845e+11