Pavel Vladimirovich Vinogradov (Russian: Павел Владимирович Виноградов; born 31 August 1953 in Magadan, USSR) is a former cosmonaut and commander of the International Space Station.

He worked on flight procedure verification for Soyuz-TM and Buran spacecraft, development of automated crew training systems.

[4] Vinogradov flew as the flight engineer on Soyuz TM-26 on 5 August 1997 with cosmonaut Anatoly Solovyev to the Mir space station.

The mission was launched aboard the Soyuz TMA-8 with Vinogradov and NASA astronaut Jeffrey Williams from the Baikonour Cosmodrome in Kazakhstan on 29 March 2006.

During their mission, Vinogradov and Williams hosted two NASA shuttle crews during their stay on board the ISS.

The main purposes of STS-121 were to test new safety and repair techniques introduced following the Columbia disaster as well as to deliver supplies, equipment and ESA astronaut Thomas Reiter from Germany to the ISS.

The Soyuz capsule carrying Vinogradov undocked from the ISS at 5:53 p.m. EDT on 28 September 2006, and landed in the steppes of Kazakhstan near Arkalyk at 9:13 p.m.

Vinogradov spent 182 days, 23 hours and 44 minutes in space on board the Soyuz spacecraft and the ISS.

During the excursion the two spacewalkers, connect power cables, inspected damage on the Spektr module and retrieved equipment.

Vinogradov and NASA astronaut Jeffrey Williams spent six hours and 31 minutes making repairs and collecting experiments along the space station's exterior.

Vinogradov replaced a clogged vent nozzle used to dump excess hydrogen overboard by the space station's Elektron oxygen generator.

Vinogradov and Williams also replaced a broken video camera that provides key views from the space station's railcar-like Mobile Base System.

During the spacewalk, Vinogradov watched a foot restraint adapter, which had previously linked him to the station's Strela crane, drift off into space.

[12] This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.