ISS013-E-28593 (30 May 2006) --- Cosmonaut Pavel V. Vinogradov, Expedition 13 commander representing Russia's Federal Space Agency, and astronaut Jeffrey N. Williams, NASA space station science officer and flight engineer, attired in Russian Orlan spacesuits, look over a checklist in the Pirs Docking Compartment of the International Space Station as they prepare for a spacewalk scheduled for June 1.