USS Steadfast
From Star Trek: Theurgy Wiki
The USS Steadfast was a 24th century Federation starship operated by Starfleet.
Lieutenant Tristan Kendrick served aboard the Steadfast as a researcher in the Science department from 2366 to 2367.
(It has not yet been revealed what class of starship the USS Steadfast was or if it is still in service as of 2381.)