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Mexsat
The Mexican Satellite System, also known as MEXSAT, is a network of three satellites bought by the Mexican government's Ministry of Communications and Transportation. The three satellites are named Mexsat-1, Mexsat-2, and Mexsat-3. Subsequently, they have also been named Centenario, Morelos III and Bicentenario respectively. Mexsat-1 and Mexsat-2 are twin satellites for mobile communication devices and will operate in the electromagnetic frequencies of the L and Ku bands. Mexsat-3 will operate in the range of the extended C and Ku bands. Together these three satellites will form the whole system, operated by the Ministry of Communications and Transportation. The system is expected to meet the telecommunications needs of the whole country. Two control centres have been built in Hermosillo from which the new satellites will be operated. They were inaugurated by the then-president Felipe Calderón on 29 November 2012. History On 20 August 2009, the National Security Program of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexsat-3
Mexsat-3, also known as Mexsat Bicentenario or simply Bicentenario, is the first of three Mexican satellites forming the MEXSAT telecommunications network, and is named to commemorate the bicentennial of the Independence of Mexico. It was launched on 19 December 2012 to serve the other two satellites in the network, Mexsat-1 and Mexsat-2, as a fixed satellite service. It was manufactured by the company Orbital Sciences Corporation and was launched from Kourou in French Guiana, and currently occupies the orbit 114.9° West. Objectives The Ministry of Communications and Transportation said in a statement that the new satellite would provide fixed broadband services for access to the Internet, digital high-quality satellite telephony, videoconferencing, remote medical care and education via television. It said that Bicentenario would provide services for emergency care "before, during and after emergencies". The satellite was equipped with instruments for transmitting and receiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeing 702
Boeing 702 is a communication satellite bus family designed and manufactured by the Boeing Satellite Development Center, and flown from the late-1990s into the 2020s. It covers satellites massing from to with power outputs from 3 to 18 kW and can carry up to approximately 100 high-power transponders. The baseline Boeing 702 is compatible with several orbital launch systems, including Atlas V, Ariane 5, Delta IV, Falcon 9, Proton, and the Sea Launch-operated Zenit 3SL. Platform versions After the introduction of the original 702 in 1997, the platform has been continually updated. New members of the platform have been introduced through the years, which allowed the common systems and approaches to span the whole range of mass and power for geosynchronous orbit satellites. The family currently spans four different members: the 702HP for high-power applications, the 702HP-GEO for mobile-telephone services, the 702MP for medium-power requirements and the 702SP for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbital Sciences Corporation
Orbital Sciences Corporation (commonly referred to as Orbital) was an American company specializing in the design, manufacture, and launch of small- and medium- class space and launch vehicle systems for commercial, military and other government customers. In 2014, Orbital merged with Alliant Techsystems (ATK) to create a new company called Orbital ATK, which in turn was purchased by Northrop Grumman in 2018. Orbital was headquartered in Dulles, Virginia and publicly traded on the New York Stock Exchange with the ticker symbol ORB. Orbital's primary products were satellites and launch vehicles, including low Earth orbit (LEO), geosynchronous Earth orbit and planetary spacecraft for communications, remote sensing, scientific and defense missions; ground- and air-launched launch vehicles that delivered satellites into orbit; missile defense systems that were used as interceptor and target vehicles; and human-rated space systems for Earth orbit, lunar and other missions. Orbital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STAR-2
The STAR-2 Bus is a fully redundant, flight-proven, spacecraft bus designed for geosynchronous missions. It is a satellite platform, designed and developed by Thomas van der Heyden for the Indonesian Cakrawarta satellite program in the early 1990s, now manufactured by Northrop Grumman Innovation Systems with an apogee kick motor to place a communications satellite into geostationary orbit, a thruster to provide the satellite with orbital station-keeping for a 15-year mission, and solar arrays to provide the satellite payload with 5 kW of electrical power. Advantages NGIS's GEOStar-2 bus design is unique within the satellite industry. NGIS's GEOStar-2 bus provides an affordable low-to-medium power satellite platform that is ideal for missions of this size. Rather than being a less efficient version of a larger, heavier product, NGIS's GEOStar-2 bus is designed specifically for the 1000 to 5550 watts payload class. Design The GEOStar-2 bus satellite is a modular, mass ef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morelos Satellite System
The ''Morelos'' satellites are a series of Mexican communications satellites. The first two operated between 1985 and 1998 and provided telephony, data, and television services over the territory of the Mexican Republic and adjacent areas. The third is now part of the MEXSAT constellation (sister ship of the MEXSAT-1 lost during launch) but carries the ''Morelos'' name. The original ''Morelos'' satellites were replaced by the Solidaridad Satellite System (''Solidaridad I'', launched 17 November 1993, and ''Solidaridad 2'', launched 17 October 1994) and, following privatisation, by the Satmex Satellite System. Satellites Morelos I Morelos I was Mexico's first communications satellite. It was built and put into orbit under a contract from the Secretariat of Communications and Transport (SCT), the federal ministry responsible for the nation's communications systems. ''Morelos I'', a Hughes Aircraft Corporation HS-376, was launched by the U.S. Space Shuttle ''Discovery'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secretariat Of Communications And Transportation
The Secretariat of Infrastructure, Communications and Transportation (''Secretaría de Infraestructura, Comunicaciones y Transportes'', SICT) of Mexico is the national federal entity that regulates commercial road traffic and broadcasting. Its headquarters are in the Torre Libertad on Reforma in Mexico City but some aspects of the department still function at the old headquarters located at the intersection of Eje Central and Eje 4 Sur (Xola). The building is decorated with murals created by arranging small colored stones on the building's outer walls. Historical nomenclature The forerunner of the modern-day SCT was created in 1891 under President Porfirio Díaz and was known as the Secretariat of Communications ''(Secretaría de Comunicaciones)''; its first incumbent as secretary was Manuel González Cosío. In 1920 it was renamed to the Secretariat of Communications and Public Works ''(Secretaría de Comunicaciones y Obras Públicas;'' "SCOP"). In 1959, it changed names to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellite Operators
Communication is commonly defined as the transmission of information. Its precise definition is disputed and there are disagreements about whether Intention, unintentional or failed transmissions are included and whether communication not only transmits semantics, meaning but also creates it. Models of communication are simplified overviews of its main components and their interactions. Many models include the idea that a source uses a code, coding system to express information in the form of a message. The message is sent through a Communication channel, channel to a receiver who has to decode it to understand it. The main field of inquiry investigating communication is called communication studies. A common way to classify communication is by whether information is exchanged between humans, members of other species, or non-living entities such as computers. For human communication, a central contrast is between Verbal communication, verbal and non-verbal communication. Verba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Guiana
French Guiana, or Guyane in French, is an Overseas departments and regions of France, overseas department and region of France located on the northern coast of South America in the Guianas and the West Indies. Bordered by Suriname to the west and Brazil to the east and south, French Guiana covers a total area of and a land area of . As of January 2025, it is home to 292,354 people. French Guiana is the second-largest Regions of France, region in France, being approximately one-seventh the size of metropolitan France, European France, and the largest Special member state territories and the European Union, outermost region within the European Union. It has a very low population density, with only . About half of its residents live in its capital, Cayenne. Approximately 98.9% of French Guiana is covered by forests, much of it Old-growth forest, primeval Tropical rainforest, rainforest. Guiana Amazonian Park, the largest national park in the European Union covers 41% of French ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kourou
Kourou (; ) is a commune in French Guiana, an overseas region and department of France in South America. Kourou is famous for being the location of the Guiana Space Centre, the main spaceport of France and the European Space Agency (ESA). It is an administrative district in French Guiana and the main town there. Geography Some northwest of the French Guianese capital Cayenne the Kourou River empties into the Atlantic Ocean. At the mouth of this river sits the town of Kourou, which is ringed by four hills: Carapa, Pariacabo, Café and Lombard, with the Singes and Condamine mountains not far behind. There are three lakes within the town's city limits: Lake Bois Diable (where one can take lessons in jetski and other aquatic sports), Lake Marie-Claire (the smallest and calmest), and Lake Bois Chaudat (the biggest of the three; also open to sport lovers, especially canoers and kayakers). Long white sand beaches and some rocky outcrops line the town's ocean coast, the riverbank ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican War Of Independence
The Mexican War of Independence (, 16 September 1810 – 27 September 1821) was an armed conflict and political process resulting in Mexico's independence from the Spanish Empire. It was not a single, coherent event, but local and regional struggles that occurred within the same period, and can be considered a List of wars of independence, revolutionary civil war. It culminated with the drafting of the Declaration of Independence (Mexico), Declaration of Independence of the Mexican Empire in Mexico City on September 28, 1821, following the collapse of royal government and the military triumph of forces for independence. Mexican independence from Spain was not an inevitable outcome of the relationship between the Spanish Empire and its most valuable overseas possession, but events in Spain had a direct impact on the outbreak of the armed insurgency in 1810 and the course of warfare through the end of the conflict. Napoleon, Napoleon Bonaparte's Peninsular War, invasion of Spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas V
Atlas V is an expendable launch system and the fifth major version in the Atlas (rocket family), Atlas launch vehicle family. It was developed by Lockheed Martin and has been operated by United Launch Alliance (ULA) since 2006. Primarily used to launch payloads for the United States Department of Defense, NASA, and commercial customers, Atlas V is the longest-serving active rocket in the United States. Each Atlas V vehicle consists of two main stages. The First stage (rocketry), first stage is powered by a single Russian-made RD-180 engine that burns kerosene and liquid oxygen. The Centaur (rocket stage), Centaur upper stage uses one or two American-made Aerojet Rocketdyne RL10 engines that burn liquid hydrogen and liquid oxygen. Strap-on booster, Strap-on Solid rocket booster, solid rocket boosters (SRBs) are used in several configurations. Originally equipped with AJ-60A SRBs, the vehicle switched to Graphite-Epoxy Motor (GEM 63) boosters beginning in November 2020, except for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Launch Alliance
United Launch Alliance, LLC (ULA) is an American launch service provider formed in December 2006 as a joint venture between Lockheed Martin Space and Boeing Defense, Space & Security. The company designs, assembles, sells and launches rockets, but the company subcontracts out the production of rocket engines and solid rocket boosters. When founded, the company inherited the Atlas rocket family from Lockheed Martin and the Delta rocket family from Boeing. As of 2024, the Delta family has been retired and the Atlas V is in the process of being retired. ULA began development of the Vulcan Centaur in 2014 as replacement for both the Atlas and Delta rocket families. The Vulcan Centaur completed its maiden flight in January 2024. The primary customers of ULA are the Department of Defense (DoD) and NASA, but it also serves commercial clients. Company history Formation Boeing and Lockheed Martin announced on 2 May 2005 that they would establish a 50/50 joint venture, United L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
