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1959 In Spaceflight (January–June)
This article lists orbital and suborbital launches during the first half of the year 1959. For all other spaceflight activities, see 1959 in spaceflight. For launches in the second half of 1959 see List of spaceflight launches in July–December 1959. __TOC__ Orbital launches , colspan=8 style="background:white;", January , - , colspan=8 style="background:white;", February , - , colspan=8 style="background:white;", March , - , colspan=8 style="background:white;", April , - , colspan=8 style="background:white;", June , - , colspan=8 style="background:white;", , - , colspan=8 style="background:white;", Suborbital flights Reference External links {{DEFAULTSORT:1959 in spaceflight (January-June) 1959 in spaceflight Spaceflight by year Spaceflight Spaceflight (or space flight) is an applicatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1959 In Spaceflight
Luna 1 was the first spacecraft to leave the gravitational influence of Earth. Also in 1959, Luna 2 was the first spacecraft to reach the surface of another celestial body, impacting the Moon, and Luna 3 returned the first images of the far side of the Moon. Overview Orbital and suborbital launches Deep Space Rendezvous Orbital launch statistics By country By rocket By orbit See also *Timeline of spaceflight This is a timeline of known spaceflights, both crewed and uncrewed, sorted chronologically by launch date. Due to its large size, the timeline has been split into smaller articles, one for each year since 1951. There is a separate list for ... References Footnotes {{Orbital launches in 1959 1959 in spaceflight Spaceflight by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vanguard (rocket)
The Vanguard rocket PDF of an optical copy. was intended to be the first launch vehicle the United States would use to place a satellite into orbit. Instead, the Sputnik crisis caused by the surprise launch of Sputnik 1 led the U.S., after the failure of Vanguard TV-3, to quickly orbit the Explorer 1 satellite using a Juno I rocket, making Vanguard 1 the second successful U.S. orbital launch. Vanguard rockets were used by Project Vanguard from 1957 to 1959. Of the eleven Vanguard rockets which the project attempted to launch, three successfully placed satellites into orbit. Vanguard rockets were an important part of the Space Race between the United States and the Soviet Union. Overview In 1955, the United States announced plans to put a scientific satellite in orbit for the International Geophysical Year (IGY) in 1957–1958. The goal was to track the satellite as it performed experiments. At that time, there were three candidates for the launch vehicle: The Air Force's SM-65 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Army Ballistic Missile Agency
The Army Ballistic Missile Agency (ABMA) was formed to develop the U.S. Army's first large ballistic missile. The agency was established at Redstone Arsenal on 1 February 1956, and commanded by Major General John B. Medaris with Wernher von Braun as technical director. History The Redstone missile was the first major project assigned to ABMA. The Redstone was a direct descendant of the V-2 missile developed by the von Braun team in Germany during World War II. After the Naval Research Laboratory's Project Vanguard was chosen by the DoD Committee on Special Capabilities, over the ABMA's proposal to use a modified Redstone ballistic missile as a satellite launch vehicle, ABMA was ordered to stop work on launchers for satellites and focus, instead, on military missiles. Von Braun continued work on the design for what became the Jupiter-C rocket. This was a three-stage rocket, designed to test Jupiter missile components which, by ''coincidence'', could be used to lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Canaveral Launch Complex 5
Cape Canaveral Launch Complex 5 (LC-5) was a launch site at Cape Canaveral Space Force Station, Florida used for various Redstone and Jupiter launches. It is most well known as the launch site for NASA's 1961 suborbital Mercury-Redstone 3 flight, which made Alan Shepard the first American in space. It was also the launch site of Gus Grissom's July, 1961, Mercury-Redstone 4 flight. The Mercury-Redstone 1 pad abort, Mercury-Redstone 1A, and the January, 1961, Mercury-Redstone 2 with a chimpanzee, Ham, aboard, also used LC-5. A total of 23 launches were conducted from LC-5: one Jupiter-A, six Jupiter IRBMs, one Jupiter-C, four Juno Is, four Juno IIs and seven Redstones. The first launch from the complex was a Jupiter-A on July 19, 1956 and the final launch was Gus Grissom's ''Liberty Bell 7'' capsule on July 21, 1961. LC-5 is located next to the Cape Canaveral Space Force Museum which is located at LC-26. The original launch consoles and computers are on display in the LC-5 block ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juno II
Juno II was an American space launch vehicle used during the late 1950s and early 1960s. It was derived from the Jupiter missile, which was used as the first stage. Development Solid-fueled rocket motors derived from the MGM-29 Sergeant were used as upper stages, eleven for the second stage, three for the third stage, and one for the fourth stage, the same configuration as used for the upper stages of the smaller Juno I launch vehicle. On some launches to low Earth orbit the fourth stage was not flown, allowing the launch vehicle to carry an additional nine kilograms of payload. Development of the Juno II was extremely fast due to being completely built from existing hardware. The project began in early 1958, and the first vehicle flew at the end of the year. Chrysler was responsible for the overall contract, while Rocketdyne handled the first stage propulsion and Jet Propulsion Laboratory handled the upper stage propulsion. The first three Juno IIs were converted Jupiter m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Orbit
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly another body such as the Moon or Sun) on each revolution. It has an inclination of about 80–90 degrees to the body's equator. Launching satellites into polar orbit requires a larger launch vehicle to launch a given payload to a given altitude than for a near-equatorial orbit at the same altitude, because it cannot take advantage of the Earth's rotational velocity. Depending on the location of the launch site and the inclination of the polar orbit, the launch vehicle may lose up to 460 m/s of Delta-v, approximately 5% of the Delta-v required to attain Low Earth orbit. Usage Polar orbits are used for Earth-mapping, reconnaissance satellites, as well as for some weather satellites. The Iridium satellite constellation uses a polar orbit to provide telecommunications services. Near-polar orbiting satellites commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Intelligence Agency Directorate Of Science & Technology
The Directorate of Science & Technology (DS&T) is the branch of the United States Central Intelligence Agency (CIA) tasked with collecting and analyzing information through technological means and developing technical systems to advance the CIA's intelligence gathering. History Formation On December 31, 1948, the CIA formed the Office of Scientific Intelligence (OSI) by merging the Scientific Branch in the Office of Reports and Estimates with the Nuclear Energy Group of the Office of Special Operations. In 1962, the CIA formed the Deputy Directorate of Research (DDR), headed by Herbert Scoville. Under it was the newly formed Office of Special Activities, along with the Office of ELINT and the Office of Research and Development, which were quickly integrated into the DDR. However, the OSI remained part of the Directorate of Operations (CIA), Directorate of Operations. In 1963, Scoville resigned, frustrated by the unwillingness of other departments to transfer their responsibiliti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoverer 1
Discoverer 1 was the first of a series of satellites which were part of the Corona (satellite), CORONA reconnaissance satellite program. It was launched on a Thor-Agena, Thor-Agena A rocket on 28 February 1959 at 21:49:16 GMT from Vandenberg Air Force Base in California. It was a prototype of the Corona (satellite), KH-1 satellite, but did not contain either a camera or a film capsule.Clayton K. S. Chun, ''Thunder Over the Horizon: From V-2 Rockets to Ballistic Missiles'' (Greenwood Publishing Group, 2006), pp. 74–75 It was the first satellite launched toward the South Pole in an attempt to achieve a polar orbit, but was unsuccessful. A CIA report, later declassified, concluded that "Today, most people believe the Discoverer 1 landed somewhere near the South Pole". The Discover program was managed by the DARPA, Advanced Research Projects Agency (ARPA) of the United States Department of Defense, U.S. Department of Defense and the United States Air Force, U.S. Air Force. The pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Orbit
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly another body such as the Moon or Sun) on each revolution. It has an inclination of about 80–90 degrees to the body's equator. Launching satellites into polar orbit requires a larger launch vehicle to launch a given payload to a given altitude than for a near-equatorial orbit at the same altitude, because it cannot take advantage of the Earth's rotational velocity. Depending on the location of the launch site and the inclination of the polar orbit, the launch vehicle may lose up to 460 m/s of Delta-v, approximately 5% of the Delta-v required to attain Low Earth orbit. Usage Polar orbits are used for Earth-mapping, reconnaissance satellites, as well as for some weather satellites. The Iridium satellite constellation uses a polar orbit to provide telecommunications services. Near-polar orbiting satellites commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmosphere
An atmosphere () is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A stellar atmosphere is the outer region of a star, which includes the layers above the opaque photosphere; stars of low temperature might have outer atmospheres containing compound molecules. The atmosphere of Earth is composed of nitrogen (78%), oxygen (21%), argon (0.9%), carbon dioxide (0.04%) and trace gases. Most organisms use oxygen for respiration; lightning and bacteria perform nitrogen fixation which produces ammonia that is used to make nucleotides and amino acids; plants, algae, and cyanobacteria use carbon dioxide for photosynthesis. The layered composition of the atmosphere minimises the harmful effects of sunlight, ultraviolet radiation, solar wind, and cosmic rays and thus protects the organisms from genetic damage. The curr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Earth Orbit
A medium Earth orbit (MEO) is an geocentric orbit, Earth-centered orbit with an altitude above a low Earth orbit (LEO) and below a high Earth orbit (HEO) – between above sea level.''Catalog of Earth Satellite Orbits'' NASA Earth Observatory. 4 September 2009. Accessed 2 May 2021. The boundary between MEO and LEO is an arbitrary altitude chosen by accepted convention, whereas the boundary between MEO and HEO is the particular altitude of a geosynchronous orbit, in which a satellite takes 24 hours to circle the Earth, the same period as the Earth’s own rotation. All satellites in MEO have an orbital period of less than 24 hours, with the minimum period (for a circular orbit at the lowest MEO altitude) about 2 hours. Satellites in MEO or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
