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Satélite Tecnológico
The Satélite Tecnológico ("Technologic Satellite" in English) or SATEC, was a microsatellite of scientific applications, designed, developed, built and tested by Brazilian technicians, engineers and scientists working at INPE (National Institute for Space Research). Features The primary objective of SATEC was to test the technological equipment embedded in the VLS-1, providing more information for future applications. The SATEC scientific satellite had the following characteristics: * Format: parallelepiped with 61 cm x 66 cm x 66 cm * Mass: * Orbit: Heliosynchronous * Stabilization: By rotation at 120 rpm * Precision: 1 degree * Altitude: 750 kilometers Payload The instrumentation shipped in SATEC was as follows: * Solar generator: Silicon cells generating 20 W * Battery: Type NiCd – 5 Ah * PCU: with linear series technology * GPS receiver: adapted to the conditions of flight * Transmitter: S-band with BPSK modulation Mission SATEC, which had an e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to Planetary habitability, harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering Water distribution on Earth, 70.8% of Earth's crust. The remaining 29.2% of Earth's crust is land, most of which is located in the form of continental landmasses within Earth's land hemisphere. Most of Earth's land is at least somewhat humid and covered by vegetation, while large Ice sheet, sheets of ice at Polar regions of Earth, Earth's polar polar desert, deserts retain more water than Earth's groundwater, lakes, rivers, and Water vapor#In Earth's atmosphere, atmospheric water combined. Earth's crust consists of slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's outer core, Earth has a liquid outer core that generates a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
INPE - Instituto Nacional De Pesquisas Espaciais
The National Institute for Space Research (, INPE) is a research unit of the Brazilian Ministry of Science, Technology and Innovations, the main goals of which are fostering scientific research and technological applications and qualifying personnel in the fields of space and atmospheric sciences, space engineering, and space technology. While INPE is the civilian research center for aerospace activities, the Brazilian Air Force's General Command for Aerospace Technology is the military arm. INPE is located in the city of São José dos Campos, São Paulo. History On August 13, 1961, President Jânio Quadros signed a decree which created the Organizing Group for the National Commission on Space Activities (COGNAE). This group would give rise to the current National Institute for Space Research. COGNAE, which shortly after became known as CNAE, started its activities by stimulating, coordinating and supporting studies on space related areas, besides breeding a team of skilled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alcântara Accident
The 2003 Alcântara VLS accident was an accident during the Brazilian Space Agency's third attempt to launch the VLS-1 rocket, which was intended to launch two satellites into orbit. The rocket ignited on its launch pad at the Alcântara Launch Center, killing 21 people. It is the List of accidents and disasters by death toll#Space, fourth deadliest space exploration related disaster in history. Background The rocket, proposed in 1979 had until the accident two launch attempts: VLS-1 V01, one in 1997, which ended up in the Atlantic Ocean due to the failure of one of the first stage engines to start and another in 1999, destroyed remotely due to a flame penetrating the top of the second stage block 3 minutes after takeoff. Operation São Luís Besides being the third flight of the VLS-1, the operation had as objectives the launch of the satellites UNOSAT (satellite), UNOSAT and Satélite Tecnológico, SATEC in to orbit; verify the CLA's ability to perform type launches and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VLS-1
The ''VLS-1'' () was the Brazilian Space Agency's main satellite launch vehicle. The launch vehicle would have been capable of launching satellites into orbit. The launch site was located at the Alcântara Launch Center due to its proximity to the equator. Associated vehicles include the Sonda (rocket)#Sonda I, Sonda I, Sonda (rocket)#Sonda II, Sonda II, Sonda (rocket)#Sonda III, Sonda III and Sonda (rocket)#Sonda IV, Sonda IV, the VS-30, VS-40 and VSB-30. The VLS was cancelled after decades of development and high expenditures with poor results and a failed association with Ukraine that slowed the program for years. History VLS-1 development started in 1984, after the first launch of the Sonda IV rocket. To date, three prototypes have been built and two launches attempted, departing from the Alcântara Launch Center. During the V1 and V2 prototype launches (VLS-1 V1 and VLS-1 V2) technical problems prevented mission success, but allowed the testing of several vehicle components ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alcântara Launch Center
Alcantara, Alcântara ( Portuguese), Alcántara (Spanish), Alcàntara, Alcàntera, El-Qantarah and (El) Kantara are all transliterations of the Arabic word ''al-qantara'' (القنطرة), meaning "the bridge". Alcantara may refer to: People * Alcantara (surname) Places Algeria * El Kantara, town and commune in Biskra province * El Kantara District, in Biskra province Brazil * Alcântara, Maranhão, city in the state of Maranhão ** Alcântara Launch Center, Maranhão, satellite launch center * Alcântara River, Rio de Janeiro state * Barra d'Alcântara, municipality in the state of Piauí * Dom Pedro de Alcântara, municipality in the state Rio Grande do Sul * São Pedro de Alcântara, Santa Catarina, municipality Chile * The area near Alcántara metro station in northeastern Santiago Cyprus * Kantara Castle, in the Kyrenia mountains Egypt * El-Qantarah el-Sharqiyya, city in the governorate of Shamal Sina, on the eastern side of the Suez Canal Italy * Alcantara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocentric Orbit
A geocentric orbit, Earth-centered orbit, or Earth orbit involves any object orbiting Earth, such as the Moon or artificial satellites. In 1997, NASA estimated there were approximately 2,465 artificial satellite payloads orbiting Earth and 6,216 pieces of space debris as tracked by the Goddard Space Flight Center. More than 16,291 objects previously launched have undergone orbital decay and entered Earth's atmosphere. A spacecraft enters orbit when its centripetal acceleration due to gravity is less than or equal to the centrifugal acceleration due to the horizontal component of its velocity. For a low Earth orbit, this velocity is about ; by contrast, the fastest crewed airplane speed ever achieved (excluding speeds achieved by deorbiting spacecraft) was in 1967 by the North American X-15. The energy required to reach Earth orbital velocity at an altitude of is about 36 MJ/kg, which is six times the energy needed merely to climb to the corresponding altitude. Spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliosynchronous Orbit
A Sun-synchronous orbit (SSO), also called a heliosynchronous orbit, is a nearly polar orbit around a planet, in which the satellite passes over any given point of the planet's surface at the same local mean solar time. More technically, it is an orbit arranged so that it precesses through one complete revolution each year, so it always maintains the same relationship with the Sun. Applications A Sun-synchronous orbit is useful for imaging, reconnaissance, and weather satellites, because every time that the satellite is overhead, the surface illumination angle on the planet underneath it is nearly the same. This consistent lighting is a useful characteristic for satellites that image the Earth's surface in visible or infrared wavelengths, such as weather and spy satellites, and for other remote-sensing satellites, such as those carrying ocean and atmospheric remote-sensing instruments that require sunlight. For example, a satellite in Sun-synchronous orbit might ascend acros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Language
English is a West Germanic language that developed in early medieval England and has since become a English as a lingua franca, global lingua franca. The namesake of the language is the Angles (tribe), Angles, one of the Germanic peoples that Anglo-Saxon settlement of Britain, migrated to Britain after its End of Roman rule in Britain, Roman occupiers left. English is the list of languages by total number of speakers, most spoken language in the world, primarily due to the global influences of the former British Empire (succeeded by the Commonwealth of Nations) and the United States. English is the list of languages by number of native speakers, third-most spoken native language, after Mandarin Chinese and Spanish language, Spanish; it is also the most widely learned second language in the world, with more second-language speakers than native speakers. English is either the official language or one of the official languages in list of countries and territories where English ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsatellite
A microsatellite is a tract of repetitive DNA in which certain Sequence motif, DNA motifs (ranging in length from one to six or more base pairs) are repeated, typically 5–50 times. Microsatellites occur at thousands of locations within an organism's genome. They have a higher mutation rate than other areas of DNA leading to high genetic diversity. Microsatellites are often referred to as short tandem repeats (STRs) by forensic genetics, forensic geneticists and in genetic genealogy, or as simple sequence repeats (SSRs) by plant geneticists. Microsatellites and their longer cousins, the minisatellites, together are classified as variable number tandem repeat, VNTR (variable number of tandem repeats) DNA. The name Satellite DNA, "satellite" DNA refers to the early observation that centrifugation of genomic DNA in a test tube separates a prominent layer of bulk DNA from accompanying "satellite" layers of repetitive DNA. They are widely used for DNA profiling in Loss of heterozygos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population, seventh-largest by population, with over 212 million people. The country is a federation composed of 26 Federative units of Brazil, states and a Federal District (Brazil), Federal District, which hosts the capital, Brasília. List of cities in Brazil by population, Its most populous city is São Paulo, followed by Rio de Janeiro. Brazil has the most Portuguese-speaking countries, Portuguese speakers in the world and is the only country in the Americas where Portuguese language, Portuguese is an Portuguese-speaking world, official language. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazil, coastline of . Covering roughly half of South America's land area, it Borders of Brazil, borders all other countries and ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Institute For Space Research
The National Institute for Space Research (, INPE) is a research unit of the Brazilian Ministry of Science, Technology and Innovation (Brazil), Ministry of Science, Technology and Innovations, the main goals of which are fostering scientific research and technological applications and qualifying personnel in the fields of Outer space, space and atmospheric sciences, Aerospace engineering, space engineering, and space technology. While INPE is the civilian research center for aerospace activities, the Brazilian Air Force's Brazilian Aerospace Technical Center (CTA), General Command for Aerospace Technology is the military arm. INPE is located in the city of São José dos Campos, São Paulo. History On August 13, 1961, President of Brazil, President Jânio Quadros signed a decree which created the Organizing Group for the National Commission on Space Activities (COGNAE). This group would give rise to the current National Institute for Space Research. COGNAE, which shortly after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parallelepiped
In geometry, a parallelepiped is a three-dimensional figure formed by six parallelograms (the term ''rhomboid'' is also sometimes used with this meaning). By analogy, it relates to a parallelogram just as a cube relates to a square. Three equivalent definitions of ''parallelepiped'' are *a hexahedron with three pairs of parallel faces, *a polyhedron with six faces (hexahedron), each of which is a parallelogram, and *a prism (geometry), prism of which the base is a parallelogram. The rectangular cuboid (six rectangular faces), cube (six square faces), and the rhombohedron (six rhombus faces) are all special cases of parallelepiped. "Parallelepiped" is now usually pronounced or ; traditionally it was because of its etymology in Ancient Greek, Greek παραλληλεπίπεδον ''parallelepipedon'' (with short -i-), a body "having parallel planes". Parallelepipeds are a subclass of the prismatoids. Properties Any of the three pairs of parallel faces can be viewed as the bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
