![Payload canister is delivered to Launch Pad 39A where space shuttle Atlantis stands Payload canister is delivered to Launch Pad 39A where space shuttle Atlantis stands](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsjVZr_mx3BqgKbRRKDESo8_NeEWajDWrOjdjQ21nvaAl_lk-6NtNkEamqSMs7q3-Z_fctiY9bTL6b18y2jPHgonOgcpJamtPZK2PJiwMVHp1eoEAPV-OpaiF-hh8hGZW8lVBL/s400/Payload+canister+is+delivered+to+Launch+Pad+39A+where+space+shuttle+Atlantis+stands.jpg)
At NASA's Kennedy Space Center in Florida, workers monitor the lift of the canister containing the payload for space shuttle Atlantis' STS-129 mission to the International Space Station toward the Payload Changeout Room at Launch Pad 39A.
Inside the canister are the Express Logistics Carriers 1 and 2 with two spare gyroscopes, two nitrogen tank assemblies, two pump modules, an ammonia tank assembly and a spare latching end effector for the station's robotic arm.
Inside the canister are the Express Logistics Carriers 1 and 2 with two spare gyroscopes, two nitrogen tank assemblies, two pump modules, an ammonia tank assembly and a spare latching end effector for the station's robotic arm.