Sergey Yevgenyevich Treshchov (; born 18 August 1958) is a former

cosmonaut An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a List of human spaceflight programs, human spaceflight program to serve as a commander or crew member of a spa ...

of the RSC Energia. He spent 184 days in space as a flight engineer of the

International Space Station The International Space Station (ISS) is a large space station that was Assembly of the International Space Station, assembled and is maintained in low Earth orbit by a collaboration of five space agencies and their contractors: NASA (United ...

long duration Expedition 5 crew. During the mission he also conducted a spacewalk.

Personal

Treshchov was born in Volynsky District, in the

Lipetsk Lipetsk (, ), also Romanization of Russian, romanized as Lipeck, is a types of inhabited localities in Russia, city and the administrative center of Lipetsk Oblast, Russia, located on the banks of the Voronezh (river), Voronezh River in the Do ...

Region of Russia. His father is Evgueniy Georgievich Treshchov, his mother is Nina Davydovna Treshchova. Treshchov and his wife, Elvira Viktorovna Treshchova have two sons, Dmitriy born in 1988 and Aleksey born in 1992. His hobbies include soccer, volleyball, ice hockey, hiking, tennis, music, photography, and video.

Education

In 1976 Treshchov graduated from technical school as an electric welder. In 1982 he graduated from the Moscow Power Institute specializing in "engineer-teacher of electrical power disciplines".

Experience

From 1982 to 1984, Treschov served as a group leader in an

Air force An air force in the broadest sense is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an army aviati ...

regiment. He worked as a foreman and as an engineer at the RSC Energia from 1984 to 1986. His responsibilities included the analysis and planning of cosmonaut activities aboard a

space station A space station (or orbital station) is a spacecraft which remains orbital spaceflight, in orbit and human spaceflight, hosts humans for extended periods of time. It therefore is an artificial satellite featuring space habitat (facility), habitat ...

and their inflight technical training. He also developed technical documentation and, together with the Yuri Gagarin Cosmonaut Training Center, coordinated all facets of cosmonaut training. His duties also included crew support and training for descent and emergency escape scenarios aboard the Mir space station. He also participated as a test operator during tests of the ground-based complex to optimize the Life Support System of ЭУ367/734.

Cosmonaut career

In 1992, he enrolled in the RSC Energia cosmonaut detachment, and from 1992 to 1994 he completed the basic Cosmonaut training course. Treshchov spent the next 3 years (1994 to 1996) in advanced Test Cosmonaut training. From June 1997 to February 1998, Treshchov trained as a flight engineer for the Mir station backup Exp-25 crew. From June 1999 to July 2000 he trained as a flight engineer for the Soyuz-TM backup ISS contingency crew. Initially, he trained as backup to the ISS Expedition 3 crew.

Expedition 5

The Expedition 5 crew was launched on June 5, 2002, aboard STS-111. lifted off from the

Kennedy Space Center The John F. Kennedy Space Center (KSC, originally known as the NASA Launch Operations Center), located on Merritt Island, Florida, is one of the NASA, National Aeronautics and Space Administration's (NASA) ten NASA facilities#List of field c ...

LC-39A at 21:22:49 UTC. After two days ''Endeavour'' docked with the

(ISS) on June 7, 2002, at 16:25 UTC. Treshchov joined the Expedition 5 crew as a flight engineer. The Expedition 5 crew carried out approximately 25 new investigations on board the ISS, as well as continued with various science investigations begun before their stay. The scientific investigations aimed at studying cold plasma, crystal growth, radiation effects in the space and the human body. Some medical experiments involved blood, muscles, bones while the crew also conducted psychological experiments. The Expedition 5 crew returned to Earth on December 7, 2002, aboard Space Shuttle ''Endeavour''

STS-113 STS-113 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle ''Space Shuttle Endeavour, Endeavour''. During the 14-day mission in late 2002, ''Endeavour'' and its crew extended the ISS backbone with the Int ...

mission. The shuttle touched down at KSC Runway 33 at 19:38:25 UTC. Completing his second long duration spaceflight, Treshchev logged 184 days, 22 hours and 15 minutes in space. Sergei Treshchev Exp5 2

Spacewalks

Treschov performed his first and only career spacewalk on August 26, 2002. The start of the spacewalk was delayed because of an air leak in the sealed hatches between the ''Pirs'' airlock and the ''Zvezda'' module. The problem was easily corrected but took Treshchov and fellow cosmonaut Valery Korzun almost a half-hour to step through the procedures and get ready to go outside. Despite the late start at 05:27 UTC, the two spacewalkers finished everything assigned to them on this spacewalk. Wearing Russian Orlan spacesuits Treschov and Korzun installed a frame on the outside of the ''Zarya'' module to house components for future spacewalk assembly tasks. They installed new material samples on a pair of Japanese Space Agency materials exposure experiments housed on the outside of ''Zvezda''. They installed devices on ''Zvezda'' that will simplify the routing of tethers during future assembly spacewalks. The two spacewalkers also improved future station amateur radio operations by adding two ham radio antennas on ''Zvezda''. The spacewalk was staged from the ''Pirs'' docking compartment airlock and lasted 5 hours and 21 minutes.

References

External links

NASA site

{{DEFAULTSORT:Treshchov, Sergei 1958 births Living people Russian cosmonauts Heroes of the Russian Federation Crew members of the International Space Station Moscow Power Engineering Institute alumni Space Shuttle program astronauts Spacewalkers