Space King Kittan uses Super Galaxy Dai-Gurren's missile (created from Simon's Spiral Power) to blow open a hole in the Spiral Death Machine's protective field. This is of note because the Death Spiral Machine is constantly absorbing mass and converting it to energy, but a huge amount of Spiral Power would disrupt that field, creating an opening. Meaning an even greater amount of energy is required to open it.
We can scale the size of Space King Kittan off Arc Gurren Lagann. Arc Gurren Lagann has a height of 5km (this figure is also in the novelizations and the script).
1 pixel = 5000m/367 = 13.6239782m
13.6239782m X 120 = 1634.87738m
13.6239782m X 167 = 2275.20436m (2.27520436km)
Now we have Space King Kittan's height, we can find the minimum distance between it and the Death Spiral Machine's protective field.
= 2*atan(132/(1617/tan(70/2)))
= 0.0773189632 rad
= 4.43005026769831467 degrees
Enter that into the angscaling calculator, and we have a distance of 29412m. Now, to scale the width of the hole.
= 2*atan(2324/(1616/tan(70/2)))
= 1.19626928 rad
= 68.54118090532377 degrees
The gap is 40083m wide, or a radius of 20041.5m.
1 pixel = 40083m/432 = 92.7847222m
92.7847222m X 652 = 60495.6389m
60495.6389m/2 = 30247.8194 meters
Now we have that, let's have the amount of matter turned into energy per second. We can see several trails leading into the Death Spiral Field.
T = 1s/24
= 41.6666667ms X 2
= 83.3333334ms
870 pixels = 40083m
1 pixel = 40083m/870 = 46.0724138m
46.0724138m X 4 = 184.289655m
46.0724138m X 9 = 414.651724m
414.651724m - 184.289655m = 230.362069m
T = 230.362069m/83.3333334ms
= 2764.34483m/s
That's the amount of matter absorbed every second. With that, we can find the area of mass that would have been absorbed. Volume as a cylinder.
V = πr^2h
= π X 20041.5^2 X 2764.34483
= 3.4882093e12m^3
As for our masses, we'll go with a low end of water and a high end of uranium. Water has a mass of 1000kg/m^3, while uranium has a mass of 19,050kg.
(Low end)
M = 3.4882093e12 X 1000
= 3.4882093e15kg
E = mc^2
= 3.4882093e15 X 299792458^2
= 3.13504617e32 joules
= 74.929401768642449611 zettatons
(High end)
M = 3.4882093e12 X 19,050
= 6.64503872e16kg
E = mc^2
= 6.64503872e16 X 299792458^2
= 5.97226296e33 joules
= 1.4274051051625238351 yottatons
Now we have that, let's also find the speed with which Space King Kittan throws the missile.
T = 1s/24
= 41.6666667ms X 12
= 0.5s
T = 29412m/0.5s
= 58824/340.29
= Mach 172.864322
Final Results
Space King Kittan height = 2.275km
Super Galaxy Dai-Gurren's missile opens up Death Spiral Machine's field (low end) = >74.929 zettatons
Super Galaxy Dai-Gurren's missile opens up Death Spiral Machine's field (high end) = >1.427 yottatons
Space King Kittan throws the missile = Mach 172.864