Hi Marc, here's the frame I found for that time. It's sometime after 3rd contact so the part outside the umbra has been obliterated by the returning light, but you can still see what's happening. The fact that the offset is in the same general direction of the Moon's path across the field during the eclipse suggests that we were along a similar ground track that it had relative to a given star. If you do have another frame closer to mid eclipse that would be quite interesting to do the same exercise again.
Also, here's a better link to the full animation:
https://vimeo.com/559593634