sentences:  IDA-3 was delivered on SpaceX CRS-18 on July 25, 2019, and was installed a month later on August 21st by NASA astronauts Nick Hague and Andrew Morgan as part of Expedition 60.The NDS docking mechanism is androgynous, the first system to use low impact technology and the first system to allow both docking and berthing.It supports both autonomous and piloted dockings and features pyrotechnics for contingency undocking.