STS-112 (ISS assembly flight 9A) was an 11-day space shuttle mission to the International Space Station (ISS) flown by Space Shuttle Atlantis. Space Shuttle Atlantis was launched on 7 October 2002 at 19:45 UTC from the Kennedy Space Center's launch pad 39B to deliver the 28,000 pound Starboard 1 (S1) truss segment to the Space Station. Ending a 4.5-million-mile journey, Atlantis landed at 15:44 UTC on 18 October 2002 on runway 33 at the Kennedy Space Center's Shuttle Landing Facility.