The requested vessel with name IMPROS and MMSI:0 and IMO:7407790 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
IMPROS 9259692 636011266 MATANZAS Jan 18, 2018 06:14 UTC
IMPROS 9041435 636015595 BHAVNAGAR Sep 13, 2017 15:09 UTC

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