The requested vessel with name SEA LEOPARD and MMSI:366950320 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SEA LEOPARD 9422615 538003895 FOR ORDERS Feb 17, 2018 15:19 UTC
SEA LEOPARD N/A 235023771 DOVER>FRANCE>DOVER Jan 30, 2018 11:53 UTC
SEA LEOPARD N/A 245943000 Feb 05, 2017 16:24 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.