STS-104

Launch of Space Shuttle Atlantis on STS-104 mission.

The primary purpose of the flight was to deliver and install the Quest airlock. The Joint Airlock is a pressurized flight element consisting of two cylindrical chambers attached end-to-end by a connecting bulkhead and hatch. Once installed and activated, the ISS airlock became the primary path for International Space Station space walk entry and departure for U.S. spacesuits, which are known as Extravehicular Mobility Units, or EMUs. In addition, the Joint Airlock is designed to support the Russian Orlan spacesuit for EVA activity.

The Joint Airlock is 20 ft (6.1 m) long, 13 ft (4.0 m) in diameter and weighs 6.5 short tons (5.9 metric tons). It is made from steel and aluminum, and manufactured at the Marshall Space Flight Center (MSFC) by the Space Station main contractor Boeing. The ISS-airlock has two main components: a crew airlock and an equipment airlock for storing EVA gear and EVA preflight preps. STS-104 also carries a spacelab pallet with four High Pressure Gas Assembly containers that were attached to the exterior of the airlock.

Mission Specialists Michael Gernhardt and James Reilly conducted three space walks while Space Shuttle Atlantis was docked to the International Space Station. They spent a total of 16 hours and 30 minutes outside. During the first space walk, Gernhardt and Reilly assisted in the installation of the airlock. During the second and third excursions, they focused on the external outfitting of the Quest airlock with four High Pressure Gas Tanks, handrails and other vital equipment. The third spacewalk was conducted from Quest itself.[1]

STS-104 was the final Space Shuttle mission to have a five-member crew. All succeeding missions would have six or seven (except the final mission STS-135, which had 4).

• Gernhardt and Reilly – EVA 1
• EVA 1 Start: 15 July 2001 – 03:10 UTC
• EVA 1 End: 15 July 2001 – 09:09 UTC
• Duration: 5 hours, 59 minutes
• Gernhardt and Reilly – EVA 2
• EVA 2 Start: 18 July 2001 – 03:04 UTC
• EVA 2 End: 18 July 2001 – 09:33 UTC
• Duration: 6 hours, 29 minutes
• Gernhardt and Reilly – EVA 3
• EVA 3 Start: 21 July 2001 – 04:35 UTC
• EVA 3 End: 21 July 2001 – 08:37 UTC
• Duration: 4 hours, 02 minutes

The payload bay of STS-104 imaged by TV camera during its approach to the ISS, no still photography was made of this event

NASA began a tradition of playing music to astronauts during the Gemini program, which was first used to wake up a flight crew during Apollo 15.[3] Each track is specially chosen, often by their families, and usually has a special meaning to an individual member of the crew, or is applicable to their daily activities.[3][4]

• List of human spaceflights
• List of International Space Station spacewalks
• List of Space Shuttle missions
• List of spacewalks and moonwalks 1965–1999
• Outline of space science

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

• NASA mission summary Archived 10 August 2016 at the Wayback Machine
• STS-104 Video Highlights Archived 6 October 2017 at the Wayback Machine