Calc Darling in the Franxx - Let's dance, Nirv- I mean let's fly, Darling!

Strelizia flies away and covers an area greater than the plantation, which has a diameter of 3km and a height of 1.2km (or 1200m).
Straight forward enough. Let's find the distance and timeframe in which Strelizia flew.
Timeframe is 2 seconds and 20 frames.

T = 1s/24
= 41.6666667ms X 20
= 0.833333334s + 2s
= 2.83333333s

230 pixels = 1200m
1 pixel = 1200m/230 = 5.2173913m
5.2173913m X 641 = 3344.34782m

T = 3344.34782/340.29
= Mach 9.82793447

Final Results
Strelizia flies away = Mach 9.828