The requested vessel with name STARGATE and MMSI:0 and IMO:5338933 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
STARGATE 9493212 636015713 LAKE CHARLES$ Feb 20, 2018 15:44 UTC
STARGATE N/A 211737530 Oct 09, 2016 11:14 UTC
STARGATE PRESTIGE N/A 311000664 Dec 04, 2017 11:54 UTC

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