H-II Transfer Vehicle
After an extended two-month stay, Kounotori 2 was detached from the nadir docking port of the "Harmony" module by the Canadarm 2 robotic arm at 15:29 UTC on 28 March 2011, and released at 15:46 UTC. Launched in January 2011 to resupply the ISS, Kounotori 2 (also known as HTV-2) was the second Japanese H-II Transfer Vehicle. It reentered Earth's atmosphere at around 03:09 UTC on 30 March.