I think I know how this is going to turn out. My guess is that FP
hove to under sail about 3:45AM yesterday, got some rest, created a
semi-wandering track, and forgot to reactivate the SPOT. Their
first reported positions today were near, but not on, a shoal. I'm
further guessing that they anchored there for the night and were
awakened this morning by the sound of a Falcon jet buzzing them.