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Although never validated by WMO, a template has been widely used for many years. It should be now replaced by TM315009 recently validated. GTS headers for ship data starts start with character string 'IOB'.
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Although never validated by WMO, a template has been widely used for many years. It should be now replaced by TM315009 recently validated. GTS headers for ship data starts start with character string 'IOB'.