The requested vessel with name CHELKAR and MMSI:0 and IMO:7130139 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
CHELKAR N/A 272158100 Sep 11, 2017 21:54 UTC

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