On August 3, 2018 at 10:30 UTC the station's robotic arm removed the Dragon capsule from its berthing port on the station’s Harmony module. Using a command issued from the mission control center, the robot arm released the Dragon CRS-15 spacecraft at 16:38 UTC on August 3. It was the 15th flight of Dragon to the ISS with docking, including a demonstration flight in 2012.