STS-104

**STS-104**
Organization	NASA-Office of Space Flight (United States)
Mission type	Engineering,Human Crew
Launch date	July 12, 2001
Launch vehicle	Space Shuttle
Launch site	Cape Canaveral, United States
COSPAR ID	2001-028A
Inclination	51.6 degrees
Experiments	Here
Alternate Names	26862
Additional Information	Here
Data Collection	Here
Payload Mass Up	11985.72 kg
Payload Mass Down	3303.64 kg
Orbiter	Atlantis
Lift Off Mass	2,054,617.73 kg
Orbiter Weight at Liftoff	119,523.64 kg
Orbiter Weight at Landing	94,046.36 kg
Landed	Concrete runway 15 at Kennedy Space Center, Fla.
Orbits of Earth	200
Orbital Altitude	240 nautical miles

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Crew

Commander: Steven W. Lindsey
Pilot: Charles O. Hobaugh
- Payload Commander:
- Mission Specialist 1: Michael L. Gernhardt
- Mission Specialist 2: James F. Reilly
- Mission Specialist 3: Janet L. Kavandi
- Mission Specialist 4:
- Mission Specialist 5:
- Payload Specialist 1:
- Payload Specialist 2:

ISS/Mir Crew Transport

Mission

STS 104 is an American shuttle spacecraft that was launched from Cape Canaveral at 09:04 UT on 12 July 2001. It carried a crew of five American astronauts and a major unit called ISS Airlock, and docked with the ISS at 03:08 UT on 14 July 2001. The six tonne Airlock is a pressurizable unit consisting of two cyclinders of diameter four meters and a total length six meters. They were installed and secured by the crew during three EVAs. The Airlock can be pressurized by the externally mounted high pressure oxygen-nitrogen tanks, and will be the sole unit through which all future EVAs will take place. (Until now, all EVA entries/exits have been through a Russian module in ISS, with non-Russians having to wear Russian space suits.) Another payload was the "EarthKAM" of middle/high school interest. It will allow pupils to command picture-taking of chosen spots on Earth; there were expected to target 2,000 spots. The shuttle also carried out pulsed exhaust during maneuvers to enable better understanding of the formation of HF echoes from the shuttle exhaust. The echoes were obtained by ground based radars in an experiment called SIMPLEX (Shuttle Ionospheric Modification with Pulsed Local EXhaust). The shuttle landed back in Cape Canaveral at 03:39 UT on 25 July 2001.

EVA

Extravehicular Activity (EVA) conducted by Michael Gernhardt and James Reilly during two spacewalks for a total of 12 hours, 25 minutes. EVA 1, 5 hours, 59 minutes; Gernhardt and Reilly assisted space station robot arm operator Susan Helms with installation of the joint airlock onto the station. EVA 2, 6 hours, 29 minutes; Gernhardt and Reilly installed three high-pressure gas tanks (two oxygen and one nitrogen) onto the joint airlock. EVA 3, 4 hours, 2 minutes; Gernhardt and Reilly, conducting first spacewalk from new joint airlock, installed fourth high-pressure gas tank (nitrogen) onto the joint air-lock, plus handholds and communications cables.