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Expedition 4

4th long duration stay in the International space station

Field	Value
name	Expedition 4
image	ISS from Endeavour Exp4.jpg
image_caption	ISS as seen from Shuttle Endeavour during Expedition 4
insignia	Expedition 4 insignia.svg
insignia_caption	Expedition 4 mission patch
mission_type	Long-duration expedition
mission_duration	190 days, 5 hours, 31 minutes (at ISS)
195 days, 11 hours, 38 minutes, 13 seconds (launch to landing)
orbits_completed	3,068
crew_size	3
crew_members	Yury Onufrienko
Daniel W. Bursch
Carl E. Walz
crew_EVAs	3
crew_EVA_duration	17 hours, 51 minutes
crew_photo	ISS Expedition 4 crew.jpg
crew_photo_caption	L-R: Daniel W. Bursch, Yuri I. Onufrienko, and Carl E. Walz
space_station	International Space Station
start_date	UTC
end_date	UTC
arrival_craft	STS-108

departure_craft	STS-111

previous_mission	Expedition 3
next_mission	Expedition 5
programme	ISS expeditions

195 days, 11 hours, 38 minutes, 13 seconds (launch to landing)

Daniel W. Bursch Carl E. Walz

Expedition 4 was the fourth expedition to the International Space Station (7 December 2001 – 15 June 2002).

Crew

Mission parameters

Perigee: 384 km
Apogee: 396 km
Inclination: 51.6°
Period: 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-108. 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.

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 Station. 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)	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.
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 in April. The STS-110 crew were to install the S0 Truss onto the station. This spacewalk was the first spacewalk to be based out of Quest without a space shuttle at the station.

References

(16 November 2018). "Expedition 4". [[NASA]].
(9 November 2001). "Expedition Four Press Kit". NASA.
(28 October 2010). "Preflight Interview: Gennady Padalka". NASA.
(July 2012). "Stephen K. Robinson". NASA.
(28 October 2010). "Preflight Interview: Mike Fincke". NASA.
(14 January 2002). "International Space Station Status Report #02-03". NASA.
(25 January 2002). "International Space Station Status Report #02-05". NASA.
(20 February 2002). "International Space Station Status Report #02-10". NASA.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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