TMA-2 delivered the second 3-man crew to the IOSS. Upon arriving at the station, TMA-2 docked to the Pirs EVA/Docking Module located on the nadir port of Zarya. This provided a temporary home until the departure of TMA-1. After the end of TMA-1's mission, TMA-2 was undocked, and moved to the nadir port on the Soyuz/Progress Docking Module.