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Japan Aerospace Exploration Agency:JAXA
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1J/A Mission

STS-123 Mission (1J/A)

画像:1J/A Mission Insignia

1J/A Mission Insignia (official JAXA mission patches for the 1J/A Mission)

During the STS-123 Mission (1J/A), two major components were delivered to the ISS.
The first was Kibo’s stowage module, the JAXA's Experiment Logistics Module-Pressurized Section (ELM-PS), also known as the JLP. The second was the new space station robotic arm known as “Dextre” (Special Purpose Dexterous Manipulator: SPDM) developed by the Canadian Space Agency (CSA). Both components are invaluable resources for future ISS operations.



The ELM-PS is the first Kibo element delivered to the ISS. For Japan, the delivery of the ELM-PS was a significant event that marked a major advancement in Japan’s space development activities. As its name suggests, the ELM-PS is a pressurized stowage compartment that can store spare items, experiment samples or maintenance tools. This stowage space will certainly be extremely valuable for actual operations (including experiment activities) on-orbit.

During the STS-123 mission, JAXA astronaut Takao Doi flew to the ISS aboard the space shuttle Endeavour as a Mission Specialist (MS). Astronaut Doi performed the assembly, initial activation and checkout of the ELM-PS.

Astronaut Doi participating the TCDT

Astronaut Doi participating the TCDT

Astronaut Doi manipulated the space shuttle’s robotic arm (Shuttle Remote Manipulator System (SRMS)) and installed the ELM-PS onto the ISS. During this mission, the ELM-PS was attached to the zenith (top) of Harmony (Node 2) where it remained throughout the 1J/A mission. The ELM-PS was relocated to the zenith (top) of the Pressurized Module (PM) arrived at the ISS on the STS-124 mission (STS-124).

The ELM-PS traveled to the ISS carrying Kibo’s system racks and experiment racks that are eventually operated in the PM. Astronaut Doi reconfigured these racks in preparation for their eventual relocation to the PM.

STS-123 Mission (1J/A) Flight Schedule as of March 27, 2008
Launch date 2:28 a.m. March 11, 2008 (EDT)
3:28 p.m. March 11, 2008 (JST)
Launch site NASA Kennedy Space Center (KSC)
Docking date 10:49 p.m. March 12, 2008 (CDT)
0:49 p.m. March 13, 2008 (JST)
Undocking date 6:56 p.m. March 24, 2008 (CDT)
8:56 a.m. March 25, 2008 (JST)
Duration 15 days 18 hours and 11 minutes (the longest mission in the ISS assembly flight history)
Crew Seven (Including JAXA astronaut Takao Doi and a rotation crew member for ISS Expedition 16)
Orbiter Endeavour(21th flight)
Altitude Orbital Insertion: approx. 226km(140miles)
Docking: approx. 343km(213miles)
Inclination 51.6 Degrees
Landing date 8:39 p.m. March 26, 2008 (EDT)
9:39 a.m. March 27, 2008 (JST)
Landing Site NASA Kennedy Space Center (KSC)
Main Payload Experiment Logistics Module-Pressurized Section (ELM-PS)
"Dextre" (Special Purpose Dexterous Manipulator: SPDM)
  • In the ISS assembly flight mission designators, the "J" represents the missions relating to Japanese elements, and the "A" represents the missions relating to American (US) elements. For example, "1J/A" is the first assembly mission and will deliver Japanese and US elements to the ISS.

Figure 2 depicts the ISS configuration after the temporary installation of the ELM-PS to Harmony.

Image: Temporary ISS  configuration

ISS configuration


Image: Dominic L. Gorie

Dominic L. Gorie


NASA Astronaut Biographies
Image: Gregory H. Johnson

Gregory H. Johnson


NASA Astronaut Biographies
Image: Richard M. Linnehan

Richard M. Linnehan

Mission Specialist

NASA Astronaut Biographies
Image:  Robert L. Behnke

Robert L. Behnken

Mission Specialist

NASA Astronaut Biographies
Image: Michael J. Foreman

Michael J. Foreman

Mission Specialist

NASA Astronaut Biographies
Image: Takao Doi

Takao Doi

Mission Specialist

NASA Astronaut Biographies
Photo: Garrett E. Reisman

Garrett E. Reisman (ascend)

ISS Expedition 16 Flight Engineer

NASA Astronaut Biographies
Photo: Leopold Eyharts

Leopold Eyharts

ISS Expedition 16 Flight Engineer

NASA Astronaut Biographies


Image credit: NASA
NASA Astronaut Biographies on the official NASA website

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