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FT-1
Kuaizhou (KZ, , meaning "speedy vessel") (also called Feitian Emergency Satellite Launch System, Feitian-1, FT-1) is a family of Chinese "quick-reaction" orbital launch vehicles. Flying since 2013, Kuaizhou 1 and 1A consist of three solid-fueled rocket stages, with a liquid-fueled fourth stage as part of the satellite system. Kuaizhou 11, which flew an unsuccessful maiden flight in July 2020 (and successful second flight in 2022), is a larger model able to launch a payload into low Earth orbit. Heavy-lift models KZ-21 and KZ-31 are in development. The Kuaizhou series of rockets is manufactured by ExPace, a subsidiary of China Aerospace Science and Industry Corporation (CASIC), as their commercial launch vehicles. History The rocket series is based on CASIC's Anti-satellite weapon (ASAT) and BMD mid-course interceptor rockets, in particular the DF-21 Intermediate-range ballistic missile (IRBM) (another Chinese rocket that was based on DF-21 was the Kaituozhe-1). Developme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Launch Vehicle
A launch vehicle is typically a rocket-powered vehicle designed to carry a payload (a crewed spacecraft or satellites) from Earth's surface or lower atmosphere to outer space. The most common form is the ballistic missile-shaped multistage rocket, but the term is more general and also encompasses vehicles like the Space Shuttle. Most launch vehicles operate from a launch pad, supported by a missile launch control center, launch control center and systems such as vehicle assembly and fueling. Launch vehicles are engineered with advanced aerodynamics and technologies, which contribute to high operating costs. An orbital spaceflight, orbital launch vehicle must lift its payload at least to the boundary of space, approximately and accelerate it to a horizontal velocity of at least . Suborbital spaceflight, Suborbital vehicles launch their payloads to lower velocity or are launched at elevation angles greater than horizontal. Practical orbital launch vehicles use chemical prope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun-synchronous 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 Precession, 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 satellite, imaging, reconnaissance satellite, 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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiyuan Launch Area 16
Taiyuan; Mandarin pronunciation: ( Taiyuan Jin: /tʰai˦˥ ye˩˩/) is the capital of Shanxi, China. Taiyuan is the political, economic, cultural and international exchange center of Shanxi Province. It is an industrial base focusing on energy and heavy chemicals. Throughout its long history, Taiyuan was the capital or provisional capital of many dynasties in China, hence the name ( zh, s=龙城, p=Dragon City, labels=no). As of 2021, the city governs 6 districts, 3 counties, and hosts a county-level city with a total area of 6,988 square kilometers and a permanent population of 5,390,957. Taiyuan is located roughly in the centre of Shanxi, with the Fen River flowing through the central city. Etymology and names The two Chinese characters of the city's name are (, "great") and (, "plain"), referring to the location where the Fen River leaves the mountains and enters a relatively flat plain. Throughout its long history, the city had various names, including () (from wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiyuan Satellite Launch Center
The Taiyuan Satellite Launch Center (TSLC) also known as ''Base 25'' (), is a People's Republic of China space and defense launch facility (spaceport). It is situated in Kelan County, Xinzhou, Shanxi Province and is the second of four launch sites having been founded in March 1966 and coming into full operation in 1968. The facility was built as part of China's Third Front campaign to develop basic industry and national security in China's rugged interior in case of invasion by the Soviet Union or the United States. Taiyuan sits at an altitude of 1500 meters and its dry climate makes it an ideal launch site. The site is primarily used to launch meteorological satellites, Earth resource satellites and scientific satellites on Long March launch vehicles into Sun-synchronous orbits. TSLC is also a major launch site for intercontinental ballistic missiles and overland submarine-launched ballistic missile (SLBM) tests. The site has a sophisticated Technical Center and Missio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Earth Orbit
A low Earth orbit (LEO) is an geocentric orbit, orbit around Earth with a orbital period, period of 128 minutes or less (making at least 11.25 orbits per day) and an orbital eccentricity, eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, peaking in number at an altitude around , while the farthest in LEO, before medium Earth orbit (MEO), have an altitude of 2,000 km, about one-third of the Earth radius, radius of Earth and near the beginning of the Van Allen radiation belt#Inner belt, inner Van Allen radiation belt. The term ''LEO region'' is used for the area of space below an altitude of (about one-third of Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital spaceflight, sub-orbital, are carefully tracked since they present a collision risk to the many LEO satellites. No human spaceflights other than the lunar missions of the Apollo program (1968-1972) have gone beyond L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jilin-1
Jilin-1 () is China's first self-developed commercial remote sensing satellite system. The satellites are operated by Changchun Institute of Optics, Fine Mechanics and Physics, Chang Guang Satellite Technology Corporation and named after Jilin, Jilin Province where the company is headquartered. The first set of satellites were launched by Long March 2D in Jiuquan Satellite Launch Center on 7 October 2015, at 04:13 UTC. All launched Jilin-1 satellites are in Sun-synchronous orbit (SSO). As of 15 June 2023, there were a total of 25 launches of Jilin-1, and 130 satellites in orbit. Chang Guang originally planned to launch 138 total satellites by the year 2025, but expanded its goal in 2022 to 300 satellites Jilin-1 is the largest Chinese commercial satellite constellation in orbit and has enjoyed generous funding since the Chinese government opened satellite imagery to private ventures. Chang Guang received $375 million (United States dollar, USD) of funding for the Jilin-1 program ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
