Abstract
In this paper, we describe the Superconducting Submillimeter-Wave Limb-Emission Sounder aboard the Japanese Experiment Module (JEM) of the International Space Station (ISS), which is called JEM/SMILES in short. JEM/SMILES will be launched by the H-II Transfer Vehicle (HTV), Japanese own carrier to ISS, in 2009. JEM/SMILES will be accommodated to the Exposed Facility of JEM (JEM-EF) on ISS. JEM/ SMILES is to demonstrate a new space technology for observing the Earth’s atmosphere by receiving sub-millimeter signals from the Earth’s atmosphere, using a superconductivity submillimeter sensor and a 4-K closed-cycle mechanical cooler to achieve an extremely high sensitivity in the 640GHz band. JEM/SMILES will monitor global distributions of the stratospheric trace gases, such as CO2, O3 and water vapor, which affect atmospheric change like ozone depletion or global warming.
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