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Proceedings Paper

Recent results from the superconducting submillimeter-wave limb-emission sounder (SMILES) onboard ISS/JEM
Author(s): Masato Shiotani; Masahiro Takayanagi; Makoto Suzuki; Takuki Sano
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Paper Abstract

The Superconducting submillimeter-wave limb-emission sounder (SMILES) employs superconducting detectors mechanically cooled down to ~4K, and it is extremely sensitive (Tsys < 400K), for the weak emission from trace species of stratosphere and mesosphere, such as O3, HCl, HNO3, ClO, HO2, and BrO. SMILES was launched onboard HTV spacecraft by using H-IIB launcher and started atmospheric observation in autumn of 2009. Using 2 bands among 3 bands in the 625 and 650 GHz submillimeter region, SMILES has been observing precise spectra with ~1K noise. Level- 2 (L2) data processing is on going at ISAS/JAXA in semi-real time basis. O3, HCl, HNO3 and ClO have strong emission signal in the SMILES frequency coverage and we already found that SMILES L2 data is comparable or even better than the existing best satellite observation of the atmosphere. HO2 and BrO have been retrieved with single scan data successfully and the results are under verification. Since SMILES observation is much better than any previous observation, validation of SMILES L2 data will be challenging. This paper describes L2 processing at ISAS/JAXA and early results of SMILES.

Paper Details

Date Published: 13 October 2010
PDF: 13 pages
Proc. SPIE 7826, Sensors, Systems, and Next-Generation Satellites XIV, 78260D (13 October 2010); doi: 10.1117/12.865806
Show Author Affiliations
Masato Shiotani, Kyoto Univ. (Japan)
Masahiro Takayanagi, Japan Aerospace Exploration Agency (Japan)
Makoto Suzuki, Japan Aerospace Exploration Agency (Japan)
Takuki Sano, Japan Aerospace Exploration Agency (Japan)

Published in SPIE Proceedings Vol. 7826:
Sensors, Systems, and Next-Generation Satellites XIV
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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