Ball Launching Calculator

I know there was an NBN ball launching calculator in development in the early summer at the following link, but the last I heard, it had some errors, though I don’t know how significant those errors turned out to be:

I was wondering if anyone had any updates on the aforementioned launch calculator or any others, especially any that have been verified at least a little.

I believe Nathan said that there were far too many things to account for when writing it.