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Omelek Island
Omelek Island (; Marshallese: , pronounced ) is part of the Kwajalein Atoll in the Republic of the Marshall Islands. It is controlled by the United States military under a long-term lease (along with ten other islands in the atoll) and is part of the Ronald Reagan Ballistic Missile Defense Test Site. Geography The Island is about in size. Geologically, it is composed of reef-rock, as are the other islands in the atoll, which is created by the accumulation of marine organism remnants (corals, Mollusca, etc.) Rocket launches Omelek has long been used by the United States for small research launch vehicle launches due to its relative isolation in the South Pacific. The last U.S. government rocket launch occurred in 1996. After 2000, the island's equatorial proximity and nearby radar tracking infrastructure attracted SpaceX, an orbital launch provider, which updated facilities on the island and established it as their primary launch location by 2006. SpaceX began launchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omelek Island
Omelek Island (; Marshallese: , pronounced ) is part of the Kwajalein Atoll in the Republic of the Marshall Islands. It is controlled by the United States military under a long-term lease (along with ten other islands in the atoll) and is part of the Ronald Reagan Ballistic Missile Defense Test Site. Geography The Island is about in size. Geologically, it is composed of reef-rock, as are the other islands in the atoll, which is created by the accumulation of marine organism remnants (corals, Mollusca, etc.) Rocket launches Omelek has long been used by the United States for small research launch vehicle launches due to its relative isolation in the South Pacific. The last U.S. government rocket launch occurred in 1996. After 2000, the island's equatorial proximity and nearby radar tracking infrastructure attracted SpaceX, an orbital launch provider, which updated facilities on the island and established it as their primary launch location by 2006. SpaceX began launchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbital Spaceflight
An orbital spaceflight (or orbital flight) is a spaceflight in which a spacecraft is placed on a trajectory where it could remain in space for at least one orbit. To do this around the Earth, it must be on a free trajectory which has an altitude at perigee (altitude at closest approach) around ; this is the boundary of space as defined by NASA, the US Air Force and the FAA. To remain in orbit at this altitude requires an orbital speed of ~7.8 km/s. Orbital speed is slower for higher orbits, but attaining them requires greater delta-v. The Fédération Aéronautique Internationale has established the Kármán line at an altitude of as a working definition for the boundary between aeronautics and astronautics. This is used because at an altitude of about , as Theodore von Kármán calculated, a vehicle would have to travel faster than orbital velocity to derive sufficient aerodynamic lift from the atmosphere to support itself. Due to atmospheric drag, the lowest altitude ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket Launch Sites
This article constitutes a list of rocket launch sites. Some of these sites are known as spaceports or cosmodromes. A single rocket launch is sufficient for inclusion in the table, as long as the site is properly documented through a reference. Missile locations with no launches are not included in the list. Proposed and planned sites and sites under construction are not included in the main tabulation, but may appear in condensed lists under the tables. A shorter list of spaceports for human spaceflight and satellite launches is available in the article Spaceport. Table specification Sorting order * Countries in alphabetical order within a table * Launch sites within a country are sorted chronologically according to start of operations Column specification * Country – territory of the site (the organisation responsible for the launches may reside elsewhere, as indicated in the notes column; * Location – Name of launch site (sometimes also province etc.) * Coordinates – ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kwajalein Atoll
Kwajalein Atoll (; Marshallese: ) is part of the Republic of the Marshall Islands (RMI). The southernmost and largest island in the atoll is named Kwajalein Island, which its majority English-speaking residents (about 1,000 mostly U.S. civilian personnel) often use the shortened name, Kwaj . The total land area of the atoll amounts to just over . It lies in the Ralik Chain, southwest of Honolulu, Hawaii. The US Navy has hosted a naval base on Kwajalein Island since World War II. It was the final resting place of the German cruiser '' Prinz Eugen'' after it survived the Operation Crossroads nuclear test in 1946. In the late 1950s, the US Army took over the base as part of their Nike Zeus anti-ballistic missile efforts, and since then the atoll has been widely used for missile tests of all sorts. Today it is part of the Ronald Reagan Ballistic Missile Defense Test Site, with various radars, tracking cameras, missile launchers, and many support systems spread across many islands. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aur Atoll
Aur Atoll ( Marshallese: , ) is a coral atoll of 42 islands in the Pacific Ocean, and forms a legislative district of the Ratak Chain of the Marshall Islands. Its total land area is only , but it encloses a lagoon with an area of . It is located south of Maloelap Atoll. The population of Aur Atoll was 499 in 2011. History Aur Atoll was claimed by Germany along with the rest of the Marshall Islands in 1884. After World War I, the island came under the South Seas Mandate of Japan. Following the end of World War II, Aur came under the control of the United States as part of the Trust Territory of the Pacific Islands. It became part of independent Republic of the Marshall Islands in 1986. Sister cities Aur Atoll has Taoyuan, Taiwan as a sister city since 2018. Education Marshall Islands Public School System operates public schools: * Aur Elementary School * Tobal Elementary School Northern Islands High School on Wotje serves the community. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wake Island
Wake Island ( mh, Ānen Kio, translation=island of the kio flower; also known as Wake Atoll) is a coral atoll in the western Pacific Ocean in the northeastern area of the Micronesia subregion, east of Guam, west of Honolulu, southeast of Tokyo and north of Majuro. The island is an unorganized, unincorporated territory belonging to (but not a part of) the United States that is also claimed by the Republic of the Marshall Islands. Wake Island is one of the most isolated islands in the world. The nearest inhabited island is Utirik Atoll in the Marshall Islands, to the southeast. The United States took possession of Wake Island in 1899. One of 14 U.S. insular areas, Wake Island is administered by the United States Air Force under an agreement with the U.S. Department of the Interior. The center of activity on the atoll is at Wake Island Airfield, which is primarily used as a mid-Pacific refueling stop for military aircraft and as an emergency landing area. The runway is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astra (American Spaceflight Company)
Astra is an American launch vehicle company based in Alameda, California. Astra was incorporated in October 2016 by Chris Kemp and Adam London. Formerly known in media as "Stealth Space Company", the company formally came out as Astra Space, Inc. in a Bloomberg L.P. article by Ashlee Vance. Investors include BlackRock, Advance, ACME, Airbus Ventures, Innovation Endeavors, Salesforce co-founder Marc Benioff, former Disney CEO Michael Eisner, and more. History Astra was founded in October 2016 by Chris Kemp and Adam London.The future of Astra with Founder and CEO Chris Kemp , NasaSpaceFlight.com, 5 June 2021, retrieved 6 June 2021. Before being reincorporated as Astra Space Inc. in 2016, Ventions, LLC was a small San Francisco based aerospace research and design firm with a 10+ year his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falcon 9
Falcon 9 is a partially reusable medium lift launch vehicle that can carry cargo and crew into Earth orbit, produced by American aerospace company SpaceX. The rocket has two stages. The first (booster) stage carries the second stage and payload to a certain altitude, after which the second stage lifts the payload to its ultimate destination. The rocket evolved through several versions. V1.0 flew from 2010–2013, V1.1 flew from 2013–2016, while V1.2 Full Thrust first launched in 2015, encompassing the Block 5 variant, flying since May 2018. The booster is capable of landing vertically to facilitate reuse. This feat was first achieved on flight 20 in December 2015. Since then, SpaceX has successfully landed boosters over 100 times. Individual boosters have flown as many as 15 flights. Both stages are powered by SpaceX Merlin engines, using cryogenic liquid oxygen and rocket-grade kerosene (RP-1) as propellants. The heaviest payloads flown to geostationary transfer or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falcon 1e
SpaceX manufactures launch vehicles to operate its launch provider services and to execute its various exploration goals. SpaceX currently manufactures and operates the Falcon 9 Full Thrust family of medium-lift launch vehicles and the Falcon Heavy family of heavy-lift launch vehicles – both of which powered by SpaceX Merlin engines and employing VTVL technologies to reuse the first stage. As of 2020, the company is also developing the fully reusable Starship launch system, which will replace the Falcon 9 and Falcon Heavy. SpaceX's first launch vehicle, the Falcon 1, was the first privately developed liquid fuel launch vehicle to be launched into orbit, and utilized SpaceX's Merlin and Kestrel engines for its first and second stages, respectively. It was launched five times from Omelek Island between 2006 and 2009 – the Falcon 1e and Falcon 5 variants were planned but never developed. The Falcon 9 v1.0, utilizing upgraded Merlin engines on both its stages, was developed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RazakSAT
RazakSAT is a Malaysian Earth observation satellite carrying a high-resolution camera. It was launched into low Earth orbit on 14 July 2009. It was placed into a near-equatorial orbit that presents many imaging opportunities for the equatorial region. It weighs over three times as much as TiungSAT-1 and carries a high resolution Earth observation camera. Developed in conjunction with Satrec Initiative, the satellite's low inclination orbit (9 degrees) brought it over Malaysia a dozen or more times per day. This was intended to provide greatly increased coverage of Malaysia, compared to most other Earth observation satellites. An audit report released in October 2011 revealed that the satellite had failed after only 1 year of operation. RazakSAT was the first and only operational satellite to be put in orbit by SpaceX's Falcon 1. Background This satellite is Malaysia's second remote sensing satellite after TiungSAT-1. Originally called MACSAT, RazakSAT's payload is mainly elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid-propellant Rocket
A liquid-propellant rocket or liquid rocket utilizes a rocket engine that uses liquid rocket propellant, liquid propellants. Liquids are desirable because they have a reasonably high density and high Specific impulse, specific impulse (''I''sp). This allows the volume of the propellant tanks to be relatively low. It is also possible to use lightweight centrifugal turbopumps to pump the rocket propellant from the tanks into the combustion chamber, which means that the propellants can be kept under low pressure. This permits the use of low-mass propellant tanks that do not need to resist the high pressures needed to store significant amounts of gasses, resulting in a low mass ratio for the rocket. An inert gas stored in a tank at a high pressure is sometimes used instead of pumps in simpler small engines to force the propellants into the combustion chamber. These engines may have a higher mass ratio, but are usually more reliable, and are therefore used widely in satellites for orbit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Spaceflight
Private spaceflight is spaceflight or the development of spaceflight technology that is conducted and paid for by an entity other than a government agency. In the early decades of the Space Age, the government space agencies of the Soviet Union and United States pioneered space technology in collaboration with affiliated design bureaus in the USSR and private companies in the US, entirely funding both the development of new spaceflight technologies and the operational costs of spaceflight. The European Space Agency was formed in 1975, largely following the same model of space technology development. However, Arianespace became the world's first commercial launch service provider in the early 1980s. Later on, large defense contractors began to develop and operate space launch systems, derived from government rockets. Private spaceflight in Earth orbit includes communications satellites, satellite television, satellite radio, astronaut transport and sub-orbital and orbital spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
