Open Tonnage

“Open” = the vessel’s most recent detected port call was a discharge (delivered, now available); “In port” = currently alongside (open call). The two tiles count every qualifying position; the segment mix, the summary line and the table below cover the 100 most recent. Inferred from AIS. A vessel may have a fixture we can’t see, so treat it as a lead, not a confirmation. Densifies as AIS history deepens.