The path of a total solar eclipse is modeled by f$()=0\mathrm{.}00311t^2-0\mathrm{.}566t42\mathrm{.}427,$ where fill is the lattude in degrees south of the equator at t minutes after the start of the total eclipse. What is the latiode closest to the equator, in degrees, at which the total eclipse will be visible?

The latitude closest to the equatior at which the total eclipse will be visible is $\text{'}$s$.$

$($Round the final answer to two decimal places as needed. Round all intermeslate values to four decimal places as needed.$)$