The crews of space shuttle Endeavour and the International Space Station completed a busy day with a spacewalk and the installation of the Japanese Logistics Module - Pressurized Section (JLP) on the station.

Mission Specialist Rick Linnehan and Expedition 16 Flight Engineer Garrett Reisman completed the first spacewalk of the STS-123 mission at 4:19 a.m. EDT. The excursion lasted seven hours, one minute.

The two spacewalkers prepared the JLP for removal from Space Shuttle Endeavour's payload bay. They also opened the Centerline Berthing Camera System on top of the Harmony module. The system provides live video to assist with docking spacecraft and modules together.