I'd get the Public events app. It's tedious work; I had to spend around two hours doing that part of the quest across all planets and while I did see various events, few of them were Warsat related. But I had to rely on the app heavily. The app, or the site for that matter, will show you when an event is coming. You only gotta be in the area before the app's timer for the event reached 0. If you get there at -1 and beyond, chances are the event won't trigger. If you do make it there before the 0, you just gotta sit tight for around 5 minutes and the event will start eventually (Yes, it's not immediate. Most of my events started at -4 or so). The app also tells you what kind of event it would be, although I personally didn't find this accurate. It still helps, though. Let's say that I'm in Hellmouth and I'm waiting for an event and the next event starts in Archers Line in 3 minutes, that gives me time to sit by Hellmouth and find out what type of event that is. If it's Warsat, I'll stay there. If not, I'll ditch and move to Archers for a better shot. Again, it might take you a while but the app makes things soooooo much easier and it's really accurate about when the next event will drop. That way, you won't have to sit tight on one area while there's an event going on in some other area and you're missing it.