The vir spectrometer
WebSep 15, 2014 · Dawn carries a Visible and Infrared imaging spectrometer (VIR), designed to map the mineralogy of Vesta and Ceres by collecting hyperspectral images in the wavelength range ∼0.25 to 5.0 μm (De Sanctis et al., 2011, Russell and Raymond, 2011). All VIR spectra of Vesta’s surface show both the 0.9- and 1.9-μm absorption bands, … WebThe VIR Spectrometer Abstract. The Dawn spectrometer (VIR) is a hyperspectral spectrometer with imaging capability. The design fully... Author information. Correspondence to M. C. De Sanctis . Editor information. Rights and permissions. …
The vir spectrometer
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WebMar 14, 2024 · VIR detected ice on the northern shadowed crater wall, characterized by an almost vertical rocky cliff, illuminated by a secondary light source coming from the adjacent illuminated regions. The crater floor shows evidence of the flow of ice and rock, similar to Earth’s rock glacier (fig. S1) ( 8 ). WebThe SPectral IMaging (SPIM) facility is a laboratory imaging VIS-IR spectrometer, operative in the INAF/IAPS laboratory in Rome. The facility is used as a laboratory support for the DAWN mission (to the asteroids Vesta and Ceres) and for the 2024 ExoMars mission (to Mars). This imaging spectrometer, which is the spare of the VIR spectrometer [1,2] on …
WebDec 9, 2015 · The Visible-Infrared Mapping Spectrometer VIR 8 on the Dawn spacecraft 9 obtained multi-spectral images of Ceres’ surface in the spectral range 0.4–5 μm with an instantaneous field of view of... WebFourier-transform infrared spectroscopy (FTIR) is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid, or gas. An FTIR spectrometer simultaneously collects high-resolution spectral data over a wide spectral range.
WebVIR Series Portable FTIR spectrometer VIR Series rugged FTIR spectrometer shown with gas cell and microscope The VIR Series rugged FTIR spectrometer is compact and lightweight, making it easily transportable. The collimated entrance and exit ports make it … WebNov 5, 2024 · The Visible-Infrared Mapping Spectrometer (VIR) on board the Dawn spacecraft revealed that aqueous secondary minerals—Mg-phyllosilicates, NH 4 -bearing phases, and Mg/Ca carbonates—are ubiquitous on Ceres. Ceres' low reflectance requires …
WebNov 5, 2024 · The spectral range of the imaging spectrometer must include the 0.4-3 μm VNIR and SWIR bands, and the convex grating surface consists of two grooved sections with distinct periods. ... Progress...
WebNov 6, 2013 · The Visible and Infrared Mapping Spectrometer (VIR) on board NASA’s Dawn spacecraft 10 has been used in a global search for olivine on the Vestan surface ( Supplementary Information ). VIR... discounted workout clothesWebThe Visual and Infrared spectrometer (VIR) is – alongside the German camera system – the second European contribution to the Dawn mission. The spectrometer measures the thermal radiation (infrared) of the asteroids themselves, as well as the sunlight reflected … discounted workwearWebThe spectrometer uses a prism or a grating to spread the light into a spectrum. This allows astronomers to detect many of the chemical elements by their characteristic spectral lines. These lines are named for … foursome in french meaningWebOct 1, 2015 · The VIR spectrometer delivers hyperspectral data into 864 channels from two detectors, one in the visible/infrared (from 0.25 to 1.07 μ m) and the other in the infrared range (from 0.95 to 5.1 μ m), with spectral sampling of 1.8 nm and 9.8 nm, respectively. The spatial resolution depends both by the altitude of the mapping orbit and the ... discounted workout equipmentWeb6 rows · Instrument Overview ===== VIR is an imaging spectrometer having moderate spectral resolution ... discounted wrapping paperWebDec 1, 2011 · The Dawn spectrometer (VIR) is a hyperspectral spectrometer with imaging capability. The design fully accomplishes Dawn’s scientific and measurement objectives. Determination of the mineral composition of surface materials in their geologic context is … discounted xboxWebThe VIR imaging spectrometer [2] is composed of two channels: the VIS channel covers the spectral range 0.25–1 µm, with a spectral sampling of ~2 nm, and the IR channel covers the spectral range 1–5 µm, with a spectral sampling of ~10 nm. discounted wrangler jeans