I spent the 1st 4 hours of the day gawking at the best aurora show I’ve ever seen. The moon had set, but cloud cover was intermittent and less than favorable. From midnight onward, there was a corona, but it especially picked up in activity around 2:30 AM. For most of the night, the arc was relatively quiet, although bright. The aurora became really active around 3 AM, and for the 1st time, I was able to see the purple at the lowest altitude edge of the curtain!