Sensitivity study of SMILES-2 for chemical species

Makoto Suzuki; Naohiro Manago; Hiroyuki Ozeki; Satoshi Ochiai; Philippe Baron

doi:10.1117/12.2194832

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16 October 2015 Sensitivity study of SMILES-2 for chemical species

Makoto Suzuki, Naohiro Manago, Hiroyuki Ozeki, Satoshi Ochiai, Philippe Baron

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Proceedings Volume 9639, Sensors, Systems, and Next-Generation Satellites XIX; 96390M (2015) https://doi.org/10.1117/12.2194832
Event: SPIE Remote Sensing, 2015, Toulouse, France

Abstract

Sensitivity studies of temperature and chemical species (Observed by ISS/JEM/SMILES: O₃, HCl, ClO, HO₂, BrO, HNO₃, CH₃CN, and Not observed by SMILES: Temperature, H₂O, N₂O, NO₂, NO, CH₃Cl, CO, H₂CO, OH and O-atom) was carried out for the SMILES-2 proposal, a sub-mm and THz observation of limb emission from space over the spectral region from 400 GHz to 2.5 THz. Tentative but optimal candidate of frequency bands to cover these species was selected with 3 SIS (Superconductor-Insulator-Superconductor) mixers; SIS-1 (485-489 GHz + 523-527 GHz), SIS-2 (623-627 GHz + 648-652 GHz), SIS-3 (557 GHz + 576.3 GHz) and 2 HEB (Hot Electron Bolometer); HEB-1 (1.8 THz OH) and HEB-2 (2.06 THz O-atom). Temperature can be retrieved with 1 K precision and 1 km vertical resolution from 15 to 120 km. Other chemical species also showed very high single scan precision (random error) comparable to statistical standard error of previous satellite measurements.

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Makoto Suzuki, Naohiro Manago, Hiroyuki Ozeki, Satoshi Ochiai, and Philippe Baron "Sensitivity study of SMILES-2 for chemical species", Proc. SPIE 9639, Sensors, Systems, and Next-Generation Satellites XIX, 96390M (16 October 2015); https://doi.org/10.1117/12.2194832

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