Event label	Optional label	Method/Device	Abbreviation	O2A Registry URI	Date/Time	Latitude	Longitude	Elevation	Date/Time end	Latitude end	Longitude end	Elevation end	Comment
M6/4-track		Underway cruise track measurements	CT		1987-12-28T00:00:00	5.24670	-3.98570		1988-01-12T00:00:00	14.67950	-17.42320		Abidjan - Dakar