: Thanks for sharing this stuff with us.

: And yeah, I think it makes total sense that the UEG/UNSC would devise coords
: based on earth, bastards that they are :)

Why not?

I mean, sure, it smacks of imperialism and hegemony and a whole buncha naughty words, but when you are building a map of an interstellar civilization, where else would you put the coordinates 0,0,0 but at the geographic center of that civilization? Maybe someday Humanity will spread out far enough to use other reference points like the length along the Orion arm or the supermassive black hole at the center of the galaxy, but the UNSC isn't there yet.