Calc Space Patrol Luluco - Luluco destroys asteroid

Luluco blows up a large meteorite, which she survives the explosion of (and so does her mother). Luluco is in the top part.
A space shuttle is 184 feet (56.0832m) tall.
491 pixels = 56.0832m
1 pixel = 56.0832m/491 = 0.114222403m
0.114222403m X 132 = 15.0773572m
0.114222403m X 87 = 9.93734906m

R = (h/2) + c^2/(8h)
= (63/2) + 1185^2/(8 X 63)
= 2817.66071

For the diameter, times that by 2.

D = 2817.66071 X 2
= 5635.32142

101 pixels = 9.93734906m
1 pixel = 9.93734906m/101 = 0.0983895947m
0.0983895947m X 2817.66071 = 277.228495m
0.0983895947m X 5635.32142 = 554.456991m

Volume as a sphere.

V = 4/3πr^3
= 4/3 X π X 277.228495^3
= 89248764.2m^3

It gets reduced to dust, so I'd say that's pulverization. Pulverization of rock is 200000000 joules/m^3.

E = 89248764.2 X 200000000
= 1.78497528e16 joules

Now for the kinetic energy. Looking at this asteroid chart chart, the smallest asteroid there (Bennu) has a diameter of 250 m and a mass of 0.00014 X 10^15kg (140000000000kg). That's about half the size of this asteroid, so we'll times that by two for our mass (140000000000kg X 2 = 280000000000kg).
158 pixels = 554.456991m
1 pixel = 554.456991m/158 = 3.50922146m
3.50922146m X 1280 = 4491.80347m
4 seconds.

T = 4491.80347m/4s
= 1122.95087m/s

KE = (0.5) X 280000000000 X 1122.95087^2
= 1.76542612e17 joules

Now, we'll add both results together for our final result.

E = 1.78497528e16 + 1.76542612e17
= 1.94392365e17 joules
= 46.4608902964 megaton

Final Results
Luluco blows up asteroid = 46.461 megatons