PUMA

ISS020-E-037439 (1 Sept. 2009) --- Russian cosmonaut Roman Romanenko, Expedition 20 flight engineer, installs a Russian SUDN pilot sighting instrument PUMA at a window in the Zvezda Service Module of the International Space Station. Puma Portable Zoom Viewfinder is used to view remote objects and determine their angular position in the service module coordinate system in order to provide geographical reference of observed terrestrial objects, and to determine the target vector in a specified coordinate system.