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Table 4 Expected performance at Venus for \(T_{\mathrm{SNS}} = 65\) and 60 K

From: Development and in-flight calibration of IR2: 2-μm camera onboard Japan’s Venus orbiter, Akatsuki

Wavelength (μm) Flux (\(\hbox {W cm}^{-2}\,\hbox{str}^{-1}\,\upmu \hbox { m}^{-1}\)) Exp. (s) Electrons (\(10^4 \, e^-\)) S/N ratio
65 K 60 K
1.735 \(1.2 \times 10^{-5}\) 6 7.7 250 280
2.260 \(1.6 \times 10^{-5}\) 6 9.3 280 300
2.320 \(4.0 \times 10^{-6}\) 10 3.1 125 170
2.020 \(2.2 \times 10^{-4}\) 6 11 310 330