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Pirs Docking Compartment

Quick Facts

The Pirs docking compartment, with the ISS Progress 77 cargo craft docked to it, is pictured attached to Earth-facing port of the International Space Station's Zarya service module.
The Pirs docking compartment, with the ISS Progress 77 cargo craft docked to it, is pictured attached to Earth-facing port of the International Space Station’s Zarya service module.
NASA/Roscosmos

The Pirs Docking Compartment, also known as DC-1, is a Russian Module on the International Space Station. Pirs provides an airlock for cosmonaut spacewalks. It also serves as a docking port for transport and cargo vehicles to the Space Station. In addition, Pirs can transport fuel between the Zvezda or Zarya modules and docked vehicles such as a Soyuz or Progress spacecraft.

Mass: 8,461 pounds
Length: 16 feet
Diameter: 8.4 feet

Mission Overview


Launch: 9/14/01
Installation: 9/16/01
Assembly Mission: 4R
Launch Vehicle: Progress M-SO1
Crew on station: Expedition 3