Image on right shows glowing dust grains in three wavelengths of infrared radiation: 24 microns (red) measured by the Multiband Imaging Photometer (MIPS) aboard NASA's Spitzer Space Telescope; and 8.0 microns (green) and 3.6 micron (blue) measured by Spitzer's Infrared Array Camera (IRAC).
The EIS will measure ultraviolet spectral lines in two wavelength ranges, spanning plasma temperatures from 100,000 to 20,000,000 Kelvin.
Signals from aromatic species were collected in two wavelength ranges corresponding to species with one or two rings and three five rings.
Another novel design that allows simultaneous single-polarization single-mode guidance in two wavelength windows centered at 1.55 and 1.31 μm is also proposed.
GERB measures infrared radiation in two wavelength bands: 0.32 4.0 and 0.32 30 μm, with a pixel element size of 44 km at sub-satellite point.
The solar radiation has been assayed in four wavelength bands (UV-C, 170 280 nm, UV-B, 280 315 nm), UV-A (315 400 nm) and PAR (photosynthetic active radiation, 400 700 nm).
These effects can be reduced by selectively measuring the reflection in two wavelength windows, one on an absorption band of water and another in a reference band and then combining the results in a moisture index image.
A solar spectral irradiance meter (SSIM), designed for measuring the direct normal irradiance (DNI) in six wavelength bands, has been combined with models to determine key atmospheric transmittances and the resulting spectral irradiance distribution of DNI under all sky conditions.
The fluxes are divided in six wavelength intervals are normalized to the present solar values.
