Feel that curve!

Lots of listening to 6m over the past days led to this spectacular, presumably aircraft reflection.

The step at the fourth time marker line down is where I transmitted for one cycle.  But the rest is complete.  

There is no sign of the signal reflected being anything other than entirely continuous.  Which begs the question: what signal was being reflected?  If it was FT8, surely there ought to be detectable gaps where people stop and start TX?  I also wonder how the signal reflection was so incredibly stable throughout the pass of whatever vehicle was responsible.  I'm wondering whether it could have been the ISS.  Sadly, I didn't think to record the time, and the original file has been deleted.  Ah well!