The vir spectrometer

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August undefined, 2024

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 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 a primary Dawn …

PDS: Instrument Information - NASA

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... WebMar 1, 2024 · The VIR instrument consists of a single optical head, with two channels, the visible (covering the ultraviolet-visible range, i.e. 0.2–1 μm, with 1.8 nm resolution) and the infrared (1–5 μm, with 9.5 nm resolution) and produces hyperspectral data, with three dimensions, two spatial and one spectral, referred as a “image cube” (De Sanctis et al., … hometown tickets fdl wi

Dawn Discovers Surprise 2nd Giant South Pole Impact Basin at …

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... WebDec 3, 2024 · The GRaND is a Gamma Ray and Neutron Detector spectrometer designed to measure elemental abundances on the surface of Vesta and Ceres. The elemental composition of both Vesta and Ceres will be measured with the Gamma Ray and Neutron … WebDec 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 … hispania wargames 2022

Compositional differences among Bright Spots on the Ceres surface

WebFeb 22, 2024 · The NASA/Dawn mission has acquired an unprecedented amount of data from the surface of the dwarf planet Ceres, providing a thorough characterization of its surface composition. The current favorite compositional model includes a mixture of ultra … hispania epigraphica onlineWebOct 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. … hispania epigraphica 2013

"WebMay 1, 2015 · It has two channels, one visible and one infrared and uses a dual arm optical and focal design. The spectrometer consists of four components: an optical system (5.0 kg), proximity electronics (3.0 kg, 5W), a cryocooler and driving electronics (1.3 kg, 12.6 W), and a mechanical and thermal mount (5.0 kg). " - The vir spectrometer

The vir spectrometer

How an FTIR Spectrometer Operates - Chemistry …

Web6 rows · Instrument Overview ===== VIR is an imaging spectrometer having moderate spectral resolution ... WebJan 15, 2024 · The VIR imaging spectrometer is composed of an optical head, including a visible (0.2–1 µm, sampling 1.8 nm) and an infrared (1–5 µm, sampling 9.8 nm) channel (De Sanctis et al., 2011). The VIR products are hyperspectral images, i.e., bi-dimensional spatial images acquired simultaneously at 864 wavelengths (432 per channel).

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WebJul 8, 2013 · The Visible and Infrared Spectrometer (VIR) instrument (De Sanctis et al. 2011a) measured reflectance spectra between 0.25 and 5.1 μm, a range that contains diagnostic mafic mineral absorption bands as well as the 3 μm “water” region. The VIR experiment aboard the Dawn mission is an advanced imaging spectrometer for planetary … WebOct 6, 2010 · The 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. Rights and permissions. About this article. De …

WebApr 9, 2024 · Hands-on Operation of an FTIR Spectrometer. Step 1: The first step is sample preparation. The standard method to prepare solid sample for FTIR spectrometer is to use KBr. About 2 mg of sample and 200 mg … WebThe 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 …

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 … WebThe Visible InfraRed (VIR) mapping spectrometer onboard Dawn mission has obtained the spatial distribution of the spectral reflectance of Vesta in the wavelength ranges between 0.25-1.07 ...

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 12, 2024 · Spacecraft Statistics. Dimensions: 5.4 feet (1.64 meters) long, 4.2 feet (1.27 meters) wide and 5.8 feet (1.77 meters) high. High-gain antenna is 5 feet (1.52 meters) in diameter. Solar array is 65 feet (20 meters) long, tip to tip. Spacecraft weight: 1,647.1 … hispania cityWebDec 3, 2024 · VIR is a Visual and Infrared Imaging Spectrometer in a single optical head. A Shafer telescope is combined with an Offner spectrometer. Spectral images are formed on two matrix detectors to cover the 0.25-1 µm and 1-5 µm ranges. The design uses a dual … hometown tickets promo codeWebFeb 17, 2024 · We used the Visible and InfraRed Mapping Spectrometer (VIR) ( 16) on board the Dawn spacecraft to observe the Ernutet region from a maximum altitude of 4300 km over the mean surface of Ceres down to a minimum altitude of 385 km. Fig. 1 Spectra of organic-rich areas compared with nonorganic-rich areas. hispania motorsportWebThe 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. … hispania journal march 2022WebFourier-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. hometown tickets ohioWebDec 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... hispania bank stationWebThe VIR (De Sanctis et al. 2011) is an imaging spectrometer operating between 0.25 and 5.1 μm, a range that contains diagnostic mineral absorption bands as well as the 3 μm “water” region. Images are acquired using a scanning mirror or using the S/C movement with respect to the body surface: the scene is scanned one line at a time through ... hispania city restaurant