Due to the lapse in federal government funding, NASA is not updating this website.

Suggested Searches

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