While at the meeting, I remoted into my data acquisition machine to make sure everything got started up smoothly -- and it did indeed! So satisfying when things just work :D
Tracking on the AVX was looking good. On the Paramount, I couldn't remember if I had re-calibrated guiding in PHD after re-building the mount after going home for Christmas. Since I left my guide camera and guide scope attached to the main telescope the whole time, I shouldn't have to re-calibrate, but you never know when things get knocked a little off-kilter. So I re-calibrated it anyway.
I went through the frames in the morning -- a few sets of thin clouds had rolled through periodically, but I still got quite a few frames over the course of the night. One of my Orion constellation widefield frames through the camera lens had some satellites pass through -- one was a really bright, single streak, although I couldn't find it in SkySafari or Heavens Above. Another was actually two side-by-side, and with one tumbling (you can tell it's tumbling because the light is brighter and dimmer across the frame). I couldn't identify what they were either; potentially a tumbling rocket body.
Given how bright this one is, it's very possible that it's actually an airplane, but at a high enough altitude that you can only see one streak.
You'll have to ignore the fact that the streaks are red -- these are non-color-corrected screenshots from the raw image file.
And here's the timelapse!