Kibo (ISS module)
The Japanese Experiment Module (JEM), nicknamed Kibō (きぼう, Kibō, Hope), is a Japanese science module for the International Space Station (ISS) developed by JAXA. It is the largest single ISS module, and is attached to the Harmony module. The first two pieces of the module were launched on Space Shuttle missions STS-123 and STS-124. The third and final components were launched on STS-127.
Kibō consists of six major elements:
- pressurized module (PM)
- exposed facility (EF)
- experiment logistics module–pressurized section (ELM-PS)
- experiment logistics module–exposed section (ELM-ES)
- Japanese Experiment Module remote manipulator system (JEMRMS)
- Inter-orbit communication system (ICS).
The PM (pressurized module) is the core component connected to the port hatch of Harmony. It is cylindrical in shape and contains twenty-three International Standard Payload Racks (ISPRs), ten of which are dedicated to science experiments while the remaining 13 are dedicated to Kibō's systems and storage. The racks are placed 6-6-6-5 along the four walls of the module. The end of the JEM-PM has an airlock and two window hatches. The exposed facility, experiment logistics module, and the remote manipulator system all connect to the pressurized module. Kibō is also the location for many of the press conferences that take place on board the station.
The exposed facility (EF), also known as "Terrace", is located outside the port cone of the PM (which is equipped with an airlock). The EF has 12 EFU (exposed facility unit) ports that attach to PIU (payload interface unit) connectors on EF-EEUs (EF-equipment exchange units). All experiment payloads are fully exposed to the space environment. For proper functioning of these experiments, the payload requires an ORU (orbital replacement unit) which consists of the EPS (electrical power system), CT (communications & tracking) and the TCS (thermal control system). Of the 12 ORUs, eight are replaceable by the JEMRMS while the other four are EVA-replaceable.
Experiment logistics module
The experiment logistics module (ELM) includes two sections:
- The pressurized section (ELM-PS) – also called the JLP (Japanese logistics pressurized) – is a pressurized addition to the PM. The module is a storage facility that provides storage space for experiment payloads, samples and spare items.
- The unpressurized (external) section (ELM-ES) serves the EF as a storage and transportation module.
Remote manipulator system
The remote manipulator system (JEMRMS) is a 10 meters (33 ft) long robotic arm, mounted at the port cone of the PM, intended to service the EF and to move equipment from and to the ELM. The RMS control console was launched while inside the ELM-PS. The main arm was launched with the PM. The small fine arm is 2 meters (6 ft 7 in) long and attaches to the end effector of the main arm, was launched aboard HTV-1 on the maiden flight of the HTV spacecraft. Once HTV docked the small fine arm was assembled by the crew and deployed out the airlock to test it. Once deployed outside the JEMRMS grappled it and unfolded the arm to flex the joints before stowing it onto the exposed facility. The free end of the JEMRMS is able to use the type of grapple fixtures that the Canadarm2 uses.
NASA launched the JEM complex over three flights using the Space Shuttle. The shuttle had a large payload bay which carried the modules into orbit along with the crew. This is in contrast to the Russian modules, which are launched into orbit on multistage Proton rockets and then rendezvous and dock with the station automatically. On 12 March 2007, the Experiment Logistics Module Pressurized Section (ELM-PS), the main laboratory, arrived at the Kennedy Space Center (KSC) from Japan. It was stored in the Space Station Processing Facility until launched into orbit aboard Space Shuttle Endeavour as part of the STS-123 mission.
On 30 May 2003, the Pressurized Module (PM) arrived at KSC from Japan. It was stored at the Space Station Processing Facility until launched into orbit aboard Space Shuttle Discovery as part of the STS-124 mission. On 3 June 2008, the PM was attached to the Harmony module. At first the ELM-PS, the small cargo bay, was connected to a temporary location on Harmony and later, on 6 June 2008, was moved to its final berthing location on top (zenith) of the main laboratory.
The EF and ELM-ES arrived at KSC on 24 September 2008. The Exposed Facility (EF) and ELM-ES were launched on STS-127, on 15 July 2009. The ELM-ES was brought back to Earth at the end of the mission. The assembly of the EF was completed during the fifth spacewalk of the mission.
Kibō is the largest single ISS module:
- Pressurized module
- Length: 11.19 meters (36.7 ft)
- Diameter: 4.39 meters (14.4 ft)
- Mass: 15,900 kilograms (35,100 lb)
- Experiment logistics module - Pressurized Section
- Length: 4.21 meters (13.8 ft)
- Diameter: 4.39 meters (14.4 ft)
- Mass: 8,386 kilograms (18,488 lb)
The module and all its integrated accessories were manufactured at the Tsukuba Space Center in Japan. It is made from stainless steel, titanium, and aluminum.
Current external experiments on Kibō
- OCO-3 - Monitoring of carbon dioxide in the Earth's atmosphere using a flight spare from OCO-2. Exposed Facility Slot 3 port originally held SMILES.
- NREP - Nanoracks External Platform. NREP-2 is the current mission on this pallet. Exposed Facility Slot 4.
- i-SEEP - IVA-replaceable Small Exposed Experiment Platform (JAXA). Mounted to Exposed Facility Slot 5. It is a platform to support small-to-medium (less than 200 kg) payloads. Experiments on the i-SEEP platform are HDTV-EF2 (since 2017), GPSR/Wheel, and SOLISS (since 2019).
- GEDI - Global Ecosystem Dynamics Investigation on ISS Exposed Facility Slot 6 port originally held HREP.
- HISUI - Hyperspectral Imager Suite (METI) replacement for HREP which ended its mission in 2017. Exposed Facility Slot 8 port originally held MCE.
- CALET - CALorimetric Electron Telescope (JAXA), observation for high energy. Launched aboard HTV-5. Mass: 2500 kg. Exposed Facility Slot 9 port originally held SEDA-AP.
- ExHAM 1 and 2 - External Facility Handrail Attach Mechanism (JAXA). Mounted to the deck on handrails in the forward and aft locations next to slots 7 and 10.
- ECOSTRESS - Ecosystem Spaceborne Thermal Radiometer Experiment on Space Station. Exposed Facility Slot 10 port originally held the ELM-ES and the HTV Transfer Pallet.
Former external experiments on Kibō
Deorbited with HTV-5:
- SMILES - Observes and monitors very weak sub-millimeter wave emission lines of trace gas molecules in the stratosphere.
- MCE - Multi-mission Consolidated Equipment (NASA).
Deorbited with SpaceX CRS-15:
- HREP (Hyperspectral Imager for the Coastal Ocean (HICO) and Remote Atmospheric and Ionospheric Detection System (RAIDS) Experimental Payload).
Deorbited with SpaceX CRS-17:
- CATS - Cloud-Aerosol Transport System (LiDAR, NASA), originally held in Slot 5 will be replaced by MOLI.
- SEDA-AP (Space Environment Data Acquisition equipment-Attached Payload) - Measures neutrons, plasma, heavy ions, and high-energy light particles in the station's orbit.
- ICS-EF - Inter-orbit Communication System - Exposed Facility, Japanese communication system. Originally at the Exposed Facility Slot 7.
Planned external experiments on Kibō
- MOLI - Multi-footprint Observation Lidar and Imager (JAXA)
Current internal experiments on Kibō
- RYUTAI Rack - Fluid Physics Experiment Facility (FPEF), Solution Crystallization Observation Facility (SCOF), Protein Crystallization Research Facility (PCRF), Image Processing Unit (IPU)
- SAIBO Rack - Cell Biology Experiment Facility (CBEF), Clean Bench (CB)
- KOBAIRO Rack - Gradient Heating Furnace (GHF)
- MPSR-1 - Multi-Purpose Small payload Rack
- MPSR-2 - Multi-Purpose Small payload Rack, housing Electrostatic Levitating Furnace (ELF)
- EXPRESS Rack 4 - Biotechnology Specimen Temperature Controller (BSTC), Gas Supply Module (GSM), Space Acceleration Measurement System-II (SAMS-II), Biotechnology Specimen Temperature Controller (BSTC), Nanoracks NanoLab
- EXPRESS Rack 5
- MELFI-1 two -80° freezer racks.
- Life Sciences Glovebox (LSG)
Planned internal experiments on Kibō
This section needs expansion. You can help by adding to it. (December 2011)
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