Fig. 5From: Science requirements and description of the 1 μm camera onboard the Akatsuki Venus OrbiterCalculated nightside spectra with a spectral purity of 1 nm (solid curves) for 0.5, 1 and 2 times as much H2O abundance (top, middle and bottom, respectively) as a standard mixing ratio of 30 ppm. The peak transmissions of the filters (dashed curves) are around 75%.Back to article page