Expedition 4
Encyclopedia
Expedition 4 was the fourth expedition to the International Space Station
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. They became official station residents at 20:03 UTC on 7 December 2001, and remained on board until June 2002, when they landed on STS-111
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An international crew of three were the fourth crew to live aboard the International Space Station. The team was led by Russian Yuri I. Onufrienko and joined by American crewmates Daniel W. Bursch and Carl E. Walz, both flight engineers. As a part of the STS-108 mission, Endeavour delivered the Expedition 4 crew to the station. They returned to Earth 19 June 2002, aboard Space Shuttle Endeavour following the STS-111 mission.
. The crew spent a total of 17 hours and 51 minutes outside the station. These spacewalks brought the total up to 34—nine station-based and 25 shuttle-based—that have been conducted at the station for total of 208 hours and 5 minutes.
International Space Station
The International Space Station is a habitable, artificial satellite in low Earth orbit. The ISS follows the Salyut, Almaz, Cosmos, Skylab, and Mir space stations, as the 11th space station launched, not including the Genesis I and II prototypes...
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Crew
Mission parameters
- PerigeePerigeePerigee is the point at which an object makes its closest approach to the Earth.. Often the term is used in a broader sense to define the point in an orbit where the orbiting body is closest to the body it orbits. The opposite is the apogee, the farthest or highest point.The Greek prefix "peri"...
: 384 km - Apogee: 396 km
- InclinationInclinationInclination in general is the angle between a reference plane and another plane or axis of direction.-Orbits:The inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit...
: 51.6° - PeriodOrbital periodThe orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of...
: 92 min
Mission objectives
The International Space Station expanded its science investigations, almost doubling the previous amount of experiments performed during the Expedition Four mission. The fourth resident crew launched on 5 December 2001 on board Space Shuttle Endeavour during mission STS-108STS-108
STS-108 was a Space Shuttle mission to the International Space Station flown by Space Shuttle Endeavour. Its primary objective was to deliver supplies to and help maintain the ISS....
. They became official station residents at 20:03 UTC on 7 December 2001, and remained on board until June 2002, when they landed on STS-111
STS-111
STS-111 was a space shuttle mission to the International Space Station flown by Space Shuttle Endeavour. STS-111 resupplied the station and replaced the Expedition 4 crew with the Expedition 5 crew...
.
An international crew of three were the fourth crew to live aboard the International Space Station. The team was led by Russian Yuri I. Onufrienko and joined by American crewmates Daniel W. Bursch and Carl E. Walz, both flight engineers. As a part of the STS-108 mission, Endeavour delivered the Expedition 4 crew to the station. They returned to Earth 19 June 2002, aboard Space Shuttle Endeavour following the STS-111 mission.
Spacewalks
The Expedition Four crew conducted three spacewalks during its stay on board the International Space StationInternational Space Station
The International Space Station is a habitable, artificial satellite in low Earth orbit. The ISS follows the Salyut, Almaz, Cosmos, Skylab, and Mir space stations, as the 11th space station launched, not including the Genesis I and II prototypes...
. The crew spent a total of 17 hours and 51 minutes outside the station. These spacewalks brought the total up to 34—nine station-based and 25 shuttle-based—that have been conducted at the station for total of 208 hours and 5 minutes.
| Mission | Spacewalkers | Start (UTC Coordinated Universal Time Coordinated Universal Time is the primary time standard by which the world regulates clocks and time. It is one of several closely related successors to Greenwich Mean Time. Computer servers, online services and other entities that rely on having a universally accepted time use UTC for that purpose... ) |
End (UTC) | Duration |
|---|---|---|---|---|
| Expedition 4 EVA 1 |
Yury Onufrienko Carl Walz |
14 January 2002 20:59 |
15 January 2002 03:02 |
6 hours 3 minutes |
| Onufrienko and Walz relocated the cargo boom for the Russian Strela crane. They moved the boom from Pressurized Mating Adapter 1 to the exterior of the Pirs Docking Compartment. The crew also installed an amateur radio antenna onto the end of the Zvezda Service Module. The space walk was based out of the Pirs Airlock and used Russian Orlan space suits Orlan space suits thumb|right|270px|Cosmonaut [[Maksim Surayev]] next to two Orlan-MK modelsAn Orlan space suit |sea eagle]]) is a series of semi-rigid one-piece space suit models designed and built by NPP Zvezda. They have been used for spacewalks in the Russian space program, the successor to the Soviet space... . |
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| Expedition 4 EVA 2 |
Onufrienko Daniel Bursch |
25 January 2002 15:19 |
25 January 2002 21:18 |
5 hours 59 minutes |
| During Expedition Four's second spacewalk, Onufrienko and Bursch installed six deflector shields for the Zvezda Service Module's jet thrusters. Also, they installed an amateur radio antenna, attached four science experiments, and retrieved and replaced a device to measure material from the thrusters. Like the first EVA, this one was based out of Pirs, and the spacewalkers used Orlan suits. | ||||
| Expedition 4 EVA 3 |
Walz Bursch |
20 February 2002 15:19 |
20 February 2002 17:25 |
5 hours 49 minutes |
| This spacewalk was based out of the Quest Airlock, using U.S. spacesuits. Walz and Bursch tested the airlock and prepared for the four spacewalks that were to be performed during STS-110 STS-110 STS-110 was a Space Shuttle mission to the International Space Station on 8–19 April 2002 flown by Space Shuttle Atlantis. The main purpose was to install the S0 Truss segment, which forms the backbone of the truss structure on the station.- Crew :... in April. The STS-110 crew were to install the S0 Truss Integrated Truss Structure the Integrated Truss Structure forms the backbone of the International Space Station, with mountings for unpressurized logistics carriers, radiators, solar arrays, and other equipment.-History:... onto the station. This spacewalk was the first spacewalk to be based out of Quest without a space shuttle at the station. |
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