The requested vessel with name CHOPIN and MMSI:0 and IMO:8513728 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
CHOPIN 9449120 212193000 POINTE NOIRE Jan 22, 2018 10:58 UTC
CHOPIN N/A 367595260 ST AUGUSTINE Oct 31, 2017 23:55 UTC

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