  We present the effects of ellipticity of matter distribution in massive halos
on the observation of supernovae. A pseudo elliptical Navarro-Frenk-White (NFW)
mass model is used to calculate the introduced gain factors and observation
rates of type Ia supernovae due to the strong lensing. We investigate how and
to what extent the ellipticity in mass distribution of the deflecting halos can
affect surveys looking for cosmologically distant supernovae. We use halo
masses of $1.0 \times 10^{12} h^{-1} M_{\odot}$ and $1.0 \times 10^{14} h^{-1}
M_{\odot}$ at redshifts $z_{d}=0.2$, $z_{d}=0.5$, and $z_{d}=1.0$, with
ellipticities of up to $\epsilon=0.2$.
