About ½ hour of rotation.
Warmer than it’s been, but still cold enough to kill two camera batteries inside the space of ½ an hour. I gave up on seeing any aurora and headed home to process what I got.
Update: As it turned out, I got some aurora after all.
About 170 photos, 5 seconds each (for a total of about 15 minutes of rotation), ISO 1600, 11mm, f/2.8.