Facts and Figures

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Facts and Figures

jsc2012e219094 -- The International Space StationImage above: The International Space Station's length and width is about the size of a football field. Credit: NASA › View hi-res image

The International Space Station marked its 10th anniversary of continuous human occupation on Nov. 2, 2010. Since Expedition 1, which launched Oct. 31, 2000, and docked Nov. 2, the space station has been visited by 215 individuals.

At the time of the anniversary, the station’s odometer read more than 1.5 billion statute miles (the equivalent of eight round trips to the Sun), over the course of 57,361 orbits around the Earth.

The International Space Station is not only an orbiting laboratory, but also a space port for a variety of international spacecraft. As of November 2014, there have been:

  • 100 Russian launches
  • 37 Space Shuttle launches
  • 1 test flight and 3 operational flights by SpaceX’s Dragon
  • 1 test flight and 2 operational flight by Orbital Science’s Cygnus
  • 4 Japanese HTVs
  • 5 European ATVs

A total of 184 spacewalks have been conducted in support of space station assembly totaling over 1,152 hours, or approximately 48 days.

The space station, including its large solar arrays, spans the area of a U.S. football field, including the end zones, and weighs 924,739 pounds. The complex now has more livable room than a conventional six-bedroom house, and has two bathrooms, a gymnasium and a 360-degree bay window.

Additional launches will continue to augment these facts and figures, so check back here for the latest.

International Space Station Size & Mass

  • Module Length: 167.3 feet (51 meters)
  • Truss Length: 357.5 feet (109 meters)
  • Solar Array Length: 239.4 feet (73 meters)
  • Mass: 924,739 pounds (419,455 kilograms)
  • Habitable Volume: 13,696 cubic feet (388 cubic meters)
  • Pressurized Volume: 32,333 cubic feet (916 cubic meters)
  • Power Generation: 8 solar arrays = 84 kilowatts
  • Lines of Computer Code: approximately 2.3 million

Last updated in November 3, 2014

International Space Station at Completion

International Space Station at Completion

Expedition 22 Flight Engineer Oleg Kotov Image above: Expedition 22 Flight Engineer Oleg Kotov wears a Russian Orlan spacesuit during a spacewalk. Credit: NASA

  • The ISS solar array surface area could cover the U.S. Senate Chamber three times over.
  • ISS is larger than a six-bedroom house.
  • ISS has an internal pressurized volume of 32,333 cubic feet, or equal that of a Boeing 747.
  • The solar array wingspan (240 feet) is longer than that of a Boeing 777 200/300 model, which is 212 feet.
  • Fifty-two computers control the systems on the ISS.
  • More than 115 space flights were conducted on five different types of launch vehicles over the course of the station’s construction.
  • More than 100 telephone-booth-sized rack facilities can be in the ISS for operating the spacecraft systems and research experiments.
  • The ISS is almost four times as large as the Russian space station Mir and about five times as large as the U.S. Skylab.
  • The ISS weighs almost one million pounds (approximately 925,000 pounds). That’s the equivalent of more than 320 automobiles.
  • The ISS measures 357 feet end-to-end. That’s equivalent to the length of a football field including the end zones (well, almost – a football field is 360 feet).
  • 3.3 million lines of software code on the ground support 1.8 million lines of flight software code.
  • Eight miles of wire connects the electrical power system.
  • In the International Space Station’s U.S. segment alone, 1.5 million lines of flight software code run on 44 computers communicating via 100 data networks transferring 400,000 signals (e.g. pressure or temperature measurements, valve positions, etc.).
  • The ISS manages 20 times as many signals as the space shuttle.
  • Main U.S. control computers have 1.5 gigabytes of total main hard drive storage in the U.S. segment compared to modern PCs, which have ~500 gigabyte hard drives.
  • The entire 55-foot robot arm assembly is capable of lifting 220,000 pounds, which is the weight of a space shuttle orbiter.
  • The 75 to 90 kilowatts of power for the ISS is supplied by an acre of solar panels.

Zarya: First ISS Module

sts088719059 -- The Zarya module
Launch: Nov. 20, 1998

Vehicle: Russian Proton rocket

Function: Internal (cargo) and external (fuel) storage

  • Length — 12.56 m (41.2 ft)
  • Diameter — 4.11 m (13.5 ft)
  • Solar array length — 10.67 m (35.0 ft)
  • Solar array width — 3.35 m (11.0 ft)
  • Mass — 19,323 kg (42,600 lb)

Expedition 1: First ISS Crew

iss01s002 -- Expedition 1
Launch: Oct. 31, 2000

Vehicle: Russian Soyuz

Docking: Nov. 2, 2000

Undocking: March 18, 2001

Vehicle: Space Shuttle Discovery

Landing: March 21, 2001

Duration: 136 days, 17 hours, 9 minutes

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Page Last Updated: November 3rd, 2014
Page Editor: Mark Garcia