Orbital 6

Orbital 6 was an United Earth inspection pod that was in service with Starfleet in the mid-22nd century. It was attached to Shipyard Ops of the Orbital Drydock Facility.

In 2151, Orbital 6 was used by Charles Tucker and Jonathan Archer to inspect the starship  before its launch. Tucker, after being distracted, accidentally scratched the paint on the Enterprise's hull with Orbital 6. 

Background information
Orbital 6 was originally to have been numbered "05", in homage to travel pod 05 from, but its number in dialog was ultimately changed to 6. The craft may have still been numbered 05 on the hull though along with the Shipyard Ops and Orbital Drydock Facility signage.

Orbital 6