International Designator
DART was launched on a Pegasus rocket into a polar orbit of and has International Designator 2005-014A. The craft is and weighs . The maneuvering system comprised 16 nitrogen-fueled thrusters with three hydrazine-fueled thrusters and a reaction control system including six nitrogen-fueled thrusters from the Pegasus fourth stage, which forms an integral part of the spacecraft. The target spacecraft was an OSC MUBLCOM (Multiple-Path Beyond-Line-of-Sight Communications) prototype communications relay satellite weighing approximately launched from Vandenberg Air Force Base on 18 May 1999 with International Designator 1999-026B.