  Ludendorff coronal flattening index of the Total Solar Eclipse (TSE) on March
9, 2016, was calculated at various distances in solar radius. As a result, we
obtained the coronal flattening index $\left(\epsilon =a+b\right)$ at a
distance of 2 solar radii is 0.16. The $24^{th}$ solar cycle phase based on the
2016 TSE event obtained -0.64 which showed the corona is pre-minimum type.
Resulted coronal flattening index value gives a predicted maximum amplitude of
the monthly sunspot number ($W_{max}$) for the $25^{th}$ solar cycle to be
$70\pm65$. Therefore, the solar activity for $25^{th}$ solar cycle predicted to
be lower than the current solar cycle, which has a maximum sunspot number value
of 146 in February 2014
