page_title: STS-122
section_title: Mission payloads
hierarchical_section_title: STS-122 / Mission payloads
caption_attribution_description: English: The configuration of the International Space Station following the STS-122/ISS-1E mission to the orbital complex, highlighting the addition of the Columbus module.
context_page_description: STS-122 was a NASA Space Shuttle mission to the International Space Station, flown by the Space Shuttle Atlantis. STS-122 marked the 24th shuttle mission to the ISS, and the 121st Space Shuttle flight overall.
  The mission was also referred to as ISS-1E by the ISS program. The primary objective of STS-122 was to deliver the European Columbus science laboratory, built by the European Space Agency, to the station. It also returned Expedition 16 Flight Engineer Daniel M. Tani to Earth. Tani was replaced on Expedition 16 by Léopold Eyharts, a French Flight Engineer representing ESA. After Atlantis landing, the orbiter was prepared for STS-125, the final servicing mission for the Hubble Space Telescope.
  The original target launch date for STS-122 was 6 December 2007, but due to engine cutoff sensor reading errors, the launch was postponed to 9 December 2007. During the second launch attempt, the sensors failed again, and the launch was halted. A tanking test on 18 December 2007 revealed the probable cause to lie with a connector between the external tank and the shuttle. The connector was replaced and the shuttle launched during the third attempt on 7 February 2008.
context_section_description: STS-122 was the ISS Assembly Flight 1E, which delivered the European Columbus laboratory module to the station, along with the Biolab, Fluid Science Laboratory (FSL), European Drawer Rack (EDR), and European Physiology Modules (EPM) payloads.
  STS-122 also carried the Solar Monitoring Observatory (SOLAR), the European Technology Exposure Facility (EuTEF), and a new Nitrogen Tank Assembly, mounted in the cargo bay of an ICC-Lite payload rack, as well as a spare Drive Lock Assembly (DLA) sent to orbit in support of possible repairs to the starboard Solar Alpha Rotary Joint (SARJ) which is malfunctioning.
  Several items were returned with Atlantis: A malfunctioning Control Moment Gyroscope (CMG) that was swapped out with a new one during STS-118, and the empty Nitrogen Tank Assembly will be placed in the orbiter's payload bay, along with a trundle bearing from the Starboard SARJ that was removed during an EVA performed by Expedition 16.
caption: Illustration of the ISS after STS-122, highlighting the addition of the Columbus laboratory module.
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