In contrast, the land navigator often brought his raw measurements back, and the position may have been determined months later after consultation with a civilian scientist.
(the land navigator; brought; his raw measurements; back; T:often) (the position; may have been determined; T:months later; T:after consultation with a civilian scientist)
the land navigator the position
brought may have been determined
his raw measurements back T:often
T:months later T:after consultation with a civilian scientist