JSF DAS range

Interesting comment in here the DAS has near 20/20 (6/6 in metric)vision.

At 49 seconds..

Whats the distance someone with 6/6 vision can see a fighter/missile??

I should add what 20/20 means:- its what a normal person can see at 20 feet – so if you can see 20/40 that is worse, it means you can see at 20 feet what a normal person can see at 40 feet. an eagle for example can see 20/2

Cheers