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SHALOM (satellite)
Spaceborne Hyperspectral Applicative Land and Ocean Mission (SHALOM) is a joint mission by the Israeli Space Agency and the Italian Space Agency to develop a hyperspectral satellite. The mission was agreed upon in late 2010, and was originally intended to build two commercial hyperspectral satellites. Preliminary studies for the program started in 2012, with Phase A completed in 2013. A Joint Integrated Team from Italy and Israel perform preliminary definition and studies until 2014. By 2014, the project has evolved into building only one satellite. Phase B1 started in 2017 and was expected to last 12 months. In October 2015 a memorandum of understanding was signed, and the system was slated to become fully operational in 2021, later pushed to 2022. As of December 2021, SHALOM is expected to be operational by 2025. The project is expected to cost over $200 million, with the cost being split evenly between the two countries. Mission The joint mission is expected to build a hypersp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Observation
Earth observation (EO) is the gathering of information about the physical, chemical, and biological systems of the planet Earth. It can be performed via remote-sensing technologies (Earth observation satellites) or through direct-contact sensors in ground-based or airborne platforms (such as weather stations and weather balloons, for example). According to the Group on Earth Observations (GEO), the concept encompasses both " space-based or remotely-sensed data, as well as ground-based or in situ data". Earth observation is used to monitor and assess the status of and changes in natural and built environments. Terminology In Europe, ''Earth observation'' has often been used to refer to satellite-based remote sensing, but the term is also used to refer to any form of observations of the Earth system, including in situ and airborne observations, for example. The GEO, which has over 100 member countries and over 100 participating organizations, uses EO in this broader sense. In t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agenzia Nazionale Stampa Associata
The Agenzia Nazionale Stampa Associata (ANSA; literally "National Associated Press Agency") is the leading news agency in Italy. ANSA is a not-for-profit cooperative, whose members and owners are 36 leading news organizations in Italy. Its mission is the distribution of fair and objective news reporting. History In January 1945, three representatives of the major political forces of the Italian Resistance, Giuseppe Liverani, managing director of "Il Popolo" (The People), Primo Parrini, managing director of Avanti!, and Amerigo Terenzi, CEO of L'Unità, advanced the possibility to organize a news agency as a cooperative of newspapers, not controlled by the government nor private groups, replacing the work of the Agenzia Stefani, moved to Milan to meet the information needs of the Italian Social Republic. Their proposal had the approval from the Allied military authorities who, a few months later, favored the success of the new agency by closing the Italian ''Notizie Nazioni Unite' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Observation Satellites Of Israel
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large list of largest lakes and seas in the Solar System, volumes of water can be found throughout the Solar System, only water distribution on Earth, Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving plate tectonics, tectonic plates, which interact to produce mountain ranges, Volcano, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. Atmosphere of Earth, The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the Solar irradiance, energy from the Sun c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vega (rocket)
Vega ( it, Vettore Europeo di Generazione Avanzata, or french: Vecteur européen de génération avancée, or en, European Vector of Advanced Generation, meaning "Advanced generation European carrier rocket") is an expendable launch system in use by Arianespace jointly developed by the Italian Space Agency (ASI) and the European Space Agency (ESA). Development began in 1998 and the first launch took place from the Centre Spatial Guyanais on 13 February 2012. It is designed to launch small payloads – 300 to 2500 kg satellites for scientific and Earth observation missions to polar and low Earth orbits. The reference Vega mission is a polar orbit bringing a spacecraft of 1500 kg to an altitude of 700 km. The rocket, named after Vega, the brightest star in the constellation Lyra, is a single-body launcher (no strap-on boosters) with three solid rocket stages: the P80 first stage, the Zefiro 23 second stage, and the Zefiro 9 third stage. The upper module is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short-wavelength Infrared
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visible And Near-infrared
The visible and near-infrared (VNIR) portion of the electromagnetic spectrum has wavelengths between approximately 400 and 1100 nanometers (nm). It combines the full visible spectrum with an adjacent portion of the infrared spectrum up to the water absorption band between 1400 and 1500 nm. Some definitions also include the short-wavelength infrared band from 1400 nm up to the water absorption band at 2500 nm. VNIR multi-spectral image cameras have wide applications in remote sensing and imaging spectroscopy. Hyperspectral Imaging Satellite carried two payloads, among which one was working on the spectral range of VNIR. See also * Advanced Spaceborne Thermal Emission and Reflection Radiometer * Airborne Real-time Cueing Hyperspectral Enhanced Reconnaissance * Mars Reconnaissance Orbiter * Near infrared spectroscopy Near-infrared spectroscopy (NIRS) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum (from 780 nm t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground Sample Distance
In remote sensing, ground sample distance (GSD) in a digital photo (such as an orthophoto) of the ground from air or space is the distance between pixel centers measured on the ground. For example, in an image with a one-meter GSD, adjacent pixels image locations are 1 meter apart on the ground. GSD is a measure of one limitation to spatial resolution or image resolution, that is, the limitation due to sampling. GSD is also referred to as ground-projected sample interval (GSI) or ground-projected instantaneous field of view (GIFOV).{{cite book , title = Encyclopedia of Optical Engineering , author = Ronald G. Driggers , publisher = CRC Press , year = 2003 , isbn = 978-0-8247-4251-5 , page = 1392 , url = https://books.google.com/?id=4hBTUY_2BMIC&pg=PA1392&dq=%22ground+sample+distance%22 See also * Geographic distance Geographical distance or geodetic distance is the distance measured along the surface of the earth. The formulae in this article calculate dista ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OPTSAT-3000
OPTSAT-3000 (OPTical SATellite-3000), or SHALOM (Spaceborne Hyperspectral Applicative Land and Ocean Mission) is an Italian Earth observation and reconnaissance satellite developed and built by Israel Aerospace Industries and operated by the Italian Ministry of Defence. Launched on August 2, 2017, it has an expected service life of at least 7 years. It is based on the design of the TecSAR-1 satellite. Design Satellite bus OPTSAT-3000 is based upon the bus of the Israeli reconnaissance satellite TecSAR-1, but is modified for optical instruments. It has a launch mass of and dimensions of when its two solar arrays are deployed. Imaging system OPTSAT-3000 has a high-resolution optical imaging system known as Jupiter, which is able to deliver panchromatic images with a resolution of while operating the multispectral channel at the same time. These imaging detectors, combined with a telescope from an altitude of almost , allows OPTSAT-3000 to cover a ground track wide. Laun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultraviolet
Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nanometer, nm (with a corresponding frequency around 30 Hertz, PHz) to 400 nm (750 Hertz, THz), shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack the energy to ionization, ionize atoms, it can cause chemical reactions and causes many substances to glow or fluorescence, fluoresce. Consequently, the chemical and biological effects of UV are greater than simple heating effects, and many practical applications of UV radiation derive from its interactions with organic molecules. Short-wave ultraviolet light damages DNA and sterilizes surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrared
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visible Spectrum
The visible spectrum is the portion of the electromagnetic spectrum that is visual perception, visible to the human eye. Electromagnetic radiation in this range of wavelengths is called ''visible light'' or simply light. A typical human eye will respond to wavelengths from about 380 to about 750 nanometers. In terms of frequency, this corresponds to a band in the vicinity of 400–790 Terahertz (unit), terahertz. These boundaries are not sharply defined and may vary per individual. Under optimal conditions these limits of human perception can extend to 310 nm (ultraviolet) and 1100 nm (near infrared). The optical spectrum is sometimes considered to be the same as the visible spectrum, but some authors define the term more broadly, to include the ultraviolet and infrared parts of the electromagnetic spectrum as well. The spectrum does not contain all the colors that the human visual system can distinguish. ''Excitation purity, Unsaturated colors'' such as pink, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COSMO-SkyMed
COSMO-SkyMed (COnstellation of small Satellites for the Mediterranean basin Observation) is an Earth-observation satellite space-based radar system funded by the Italian Ministry of Research and Ministry of Defence and conducted by the Italian Space Agency (ASI), intended for both military and civilian use. The prime contractor for the spacecraft was Thales Alenia Space. COSMO SkyMed is a constellation of four dual use Intelligence, surveillance, target acquisition, and reconnaissance (ISR) Earth observation satellites with a synthetic-aperture radar (SAR) as main payload, the result of the intuition of Giorgio Perrotta in the early nineties. The synthetic-aperture radar was developed starting in the late nineties with the SAR 2000 program funded by ASI. The space segment of the system includes four identical medium-sized satellites called COSMO-SkyMed (or COSMO) 1, 2, 3, 4, equipped with synthetic-aperture radar (SAR) sensors with global coverage of the planet. Obse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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