Give me moment and I can come up with possible numbers. I am medical doctor, of course, so numbers might need fine-tuning, but I am not inept. I have hobbies.

[ It says a lot that Hilbert views something like 'computations' as a hobby. Having the screen shoved at him, he takes a moment to start poking and punching the numbers, trying to see if he can generate a useful field area around the weird space alien in the first place. ]