We have the next information
Foci: (0,0), (0,8),
Mayor axis =10
Minor axis =6
We will use the next form of the equation of the parabola
Then we need to know a and b
a=10/2=5
b=6/2=3
and the center is (0,4) in the middle of the points (0,0) and (0,8)
h=0
k=4
The equation of the ellipse is