|Total EVA time:||6h 38m|
|No.||Date||Together with||Time||Main tasks and notes|
|1||19.04.2013||P. Vinogradov||6h 38m||
They installed and connected the Obstanovka plasma wave experiment, a Russian investigation into space weather in Earths upper atmosphere. This task includes the planned jettison of two probe containers and a cable reel. They then removed a container from the Russian experiment Biorisk, which looks at the effects of microbial bacteria and fungus on structural materials used in spacecraft construction.
Russia and the U.S. define
differently. Russian cosmonauts are said to perform
any time they are in vacuum in a space suit. A U.S. astronaut must have at
least his head outside his spacecraft before he is said to perform an