The requested vessel with name ORIENT CHALLENGE and MMSI:0 and IMO:7305801 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
ORIENT CHALLENGE 9793375 563022700 SANJOSE,GTSNJ Jan 17, 2018 11:38 UTC

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