EASY UNLIMITED ASTRA During the Crimson Fleet Mission "The Best There Is", you meet Huan on the ship "Jade Swan". Astra can be in the Captain's Locker. As many as TWELVE from what I've seen. That doesn't even matter though, because after you take it, go to the lodge, wait 24 hours, go back to the locker, and there will be more. It's quick, easy, and unlimited. Stock up before it's patched.