Looks like Wired got to the bottom of the recent outages in North Korea: https://www.wired.com/story/north-korea-hacker-internet-outage/
Now that it doesn’t make much of a difference this was a graph that I created a few days ago to start getting a better idea of when launches and outages were occurring.
As as side note to all of this I’ve spent far too much time in the last few days really digging into North Korea’s internet and the way that they are peering with other networks which probably will require a new post later.