#uap #newzealand fast moving object much smaller then #star under it

from episode 154

so from watching it.. its moving the length of it self every 2 frames... typical jet speed 600mph = 880 feet / sec
1 frame/30 sec so 2x880
that means it about 1700 feet long.. a typical jet is 230
so it too big to be jet. or bird as some said.. what did I get wrong