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Sakigake
, known before launch as MS-T5, was Japan's first interplanetary spaceflight, interplanetary spacecraft and the first deep space probe to be launched by any country other than the US or the Soviet Union. It aimed to demonstrate the performance of the new launch vehicle, test its ability to escape from Earth gravity, and observe the interplanetary medium and interplanetary magnetic field, magnetic field. ''Sakigake'' was also supposed to act as a frame of reference for data received from probes that flew closer to Halley's Comet. Early measurements would be used to improve the mission of the Suisei (spacecraft), Suisei probe launched several months later. ''Sakigake'' was developed by the Institute of Space and Astronautical Science for the National Space Development Agency (both of which are now part of the Japanese Aerospace Exploration Agency, or JAXA). It became a part of the Halley Armada together with Suisei, the Soviet Vega program, Vega probes, the European Space Agen ...
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Suisei (spacecraft)
, originally known as Planet-A, was an uncrewed space probe developed by the Institute of Space and Astronautical Science (now part of the Japanese Aerospace Exploration Agency, or JAXA). It constituted a part of the Halley Armada together with ''Sakigake'', the Soviet Union, Soviet Vega program, Vega probes, the European Space Agency, ESA Giotto mission, ''Giotto'' and the National Aeronautics and Space Administration, NASA International Cometary Explorer, to explore Halley's Comet during its 1986 sojourn through the inner Solar System. Spacecraft ''Suisei'' was identical in construction and shape to ''Sakigake'', but carried a different payload: a Charge-coupled device, CCD UV imaging system and a solar wind measuring instrument, instrument. The main objective of the mission was to take UV images of the hydrogen solar corona, corona for about 30 days before and after Comet Halley's descending crossing of the plane of the ecliptic, ecliptic plane. Solar wind parameters were m ...
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Halley Armada
The Halley Armada is the name of a series of space probes, five of which were successful, sent to examine Halley's Comet during its 1986 sojourn through the inner Solar System, connected with apparition "1P/1982 U1". The armada included one probe from the European Space Agency, two probes that were joint projects between the Soviet Union and France and two probes from the Institute of Space and Astronautical Science in Japan. Notably, NASA did not contribute a probe to the Halley Armada. Main space probes Probes involved (in order of closest approach) *Giotto (596 km), the first space probe to get close-up color images of the nucleus of a comet. (ESA) * Vega 2 (8,030 km), which dropped a balloon probe and lander on Venus before going on to Halley. (USSR/France Intercosmos) * Vega 1 (8,889 km), which dropped a balloon probe and lander on Venus before going on to Halley. (USSR/France Intercosmos) * Suisei (151,000 km), also known as PLANET-A. Data from Sakigake was used to ...
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Giotto (spacecraft)
''Giotto'' was a European robotic spacecraft mission from the European Space Agency. The spacecraft flew by and studied Halley's Comet and in doing so became the first spacecraft to make close up observations of a comet. On 13 March 1986, the spacecraft succeeded in approaching Halley's nucleus at a distance of 596 kilometers. It was named after the Early Italian Renaissance painter Giotto di Bondone. He had observed Halley's Comet in 1301 and was inspired to depict it as the star of Bethlehem in his painting ''Adoration of the Magi'' in the Scrovegni Chapel. Mission Development Members of the ESA’s Solar System Working Group started investigating a mission to Halley’s comet in 1977 before rejecting it in August 1978 in favour of a lunar orbiter. Shortly afterwards this was reversed by the Science Advisory Committee and the ESA started to study a joint mission with NASA. This mission was to be the International Comet Mission consisting of a carrier NASA probe and smalle ...
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Mu (rocket)
The Mu, also known as M, was a series of Japanese Solid-fuel rocket, solid-fueled carrier rockets, which were launched from Uchinoura Space Center, Uchinoura between 1966 and 2006. Originally developed by Japan's Institute of Space and Astronautical Science, Mu rockets were later operated by Japan Aerospace Exploration Agency following ISAS becoming part of it. Early Japanese carrier rockets The first Mu rocket, the Mu-1 made a single, sub-orbital, test flight, on 31 October 1966. Subsequently, a series of rockets were produced, designated Mu-3 and Mu-4. In 1969 a suborbital test launch of the Mu-3D was conducted. The first orbital launch attempt for the Mu family, using a Mu-4, Mu-4S, was conducted on 25 September 1970, however the fourth stage did not ignite, and the rocket failed to reach orbit. On 16 February 1971, Tansei 1 was launched by another Mu-4S rocket. Two further Mu-4S launches took place during 1971 and 1972. The Mu-4S was replaced by the Mu-3C, was launched four ti ...
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Institute Of Space And Astronautical Science
, or ISAS, is a Japanese national research organization of astrophysics using rockets, astronomical satellites and interplanetary probes which played a major role in Japan's space development. Established as part of the University of Tokyo in 1964, the institute spun off from the university to come under direct purview of the Ministry of Education. Since 2003, it is a division of Japan Aerospace Exploration Agency (JAXA). History The ISAS originated as part of the Institute of Industrial Science of the University of Tokyo, where Hideo Itokawa experimented with miniature solid-fuel rockets ( Pencil Rocket and ) in the 1950s. This experimentation eventually led to the development of the Κ (''Kappa'') sounding rocket, which was used for observations during the International Geophysical Year (IGY). By 1960, the Κ-8 rocket had reached an altitude of 200 km. In 1964, the rocket group and the ''Institute of Aeronautics'', along with scientific ballooning team, were ...
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Halley's Comet
Halley's Comet is the only known List of periodic comets, short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years, though with the majority of recorded apparitions (25 of 30) occurring after 75–77 years. It last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061. Officially designated 1P/Halley, it is also commonly called Comet Halley, or sometimes simply Halley. Halley's periodic returns to the inner Solar System have been observed and recorded by astronomers around the world since at least 240 BC, but it was not until 1705 that the English astronomer Edmond Halley understood that these appearances were re-appearances of the same comet. As a result of this discovery, the comet is named after Halley. During its 1986 visit to the inner Solar System, Halley's Comet became the first comet to be observed in detail by a spacecraft, ''Giotto (spacecraft), Giotto'', providing the first obser ...
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Japanese Aerospace Exploration Agency
The is the Japanese national air and space agency. Through the merger of three previously independent organizations, JAXA was formed on 1 October 2003. JAXA is responsible for research, technology development and launch of satellites into orbit, and is involved in many more advanced missions such as asteroid exploration and possible human exploration of the Moon. Its motto is ''One JAXA'' and its corporate slogan is ''Explore to Realize'' (formerly ''Reaching for the skies, exploring space''). History On 1 October 2003, three organizations were merged to form the new JAXA: Japan's Institute of Space and Astronautical Science (ISAS), the National Aerospace Laboratory of Japan (NAL), and National Space Development Agency of Japan (NASDA). JAXA was formed as an Independent Administrative Institution administered by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and the Ministry of Internal Affairs and Communications (MIC). Before the merger, ...
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International Cometary Explorer
The International Cometary Explorer (ICE) spacecraft, designed and launched as the International Sun-Earth Explorer-3 (ISEE-3) satellite, was launched on 12 August 1978 into a heliocentric orbit. It was one of three spacecraft, along with the mother/daughter pair of ISEE-1 and ISEE-2, built for the International Sun-Earth Explorer (ISEE) program, a joint effort by NASA and ESRO/ ESA to study the interaction between the Earth's magnetic field and the solar wind. ISEE-3 was the first spacecraft to be placed in a halo orbit at the Earth-Sun Lagrange point. Renamed ICE, it became the first spacecraft to visit a comet, passing through the plasma tail of comet Giacobini-Zinner within about of the nucleus on 11 September 1985. NASA suspended routine contact with ISEE-3 in 1997 and made brief status checks in 1999 and 2008. On 29 May 2014, two-way communication with the spacecraft was reestablished by the ISEE-3 Reboot Project, an unofficial group, with support from the Skyco ...
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1985 In Spaceflight
The following is an outline of 1985 in spaceflight. Overview First ''Atlantis'' flight 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;", May , - , colspan=8 style="background:white;", June , - , colspan=8 style="background:white;", July , - , colspan=8 style="background:white;", August , - , colspan=8 style="background:white;", September , - , colspan=8 style="background:white;", October , - , colspan=8 style="background:white;", November , - , colspan=8 style="background:white;" ...
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Vega 2
Vega 2 (along with Vega 1) was a Soviet space probe part of the Vega program to explore Halley's comet and Venus. The spacecraft was a development of the earlier '' Venera'' craft. The name VeGa (ВеГа) combines the first two letters of the Russian words for Venus (Венера: "Venera") and Halley (Галлея: "Galleya"). They were designed by Babakin Space Centre and constructed as 5VK by Lavochkin at Khimki. The craft was powered by large twin solar panels. Instruments included an antenna dish, cameras, spectrometer, infrared sounder, magnetometers (MISCHA) and plasma probes. The craft was launched on top of a Proton-K from Baikonur Cosmodrome, Tyuratam, Kazakh SSR. Both Vega 1 and 2 were three-axis stabilized spacecraft. The spacecraft were equipped with a dual bumper shield for dust protection from Halley's Comet. Venus mission The descent module arrived at Venus on 15 June 1985, two days after being released from the Vega 2 flyby probe. The module, a , ...
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Satellites Orbiting The Sun
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation ( GPS), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning, signals intelligence and, potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later become defunct. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope thermoelectric generators (RTGs). Most satellites also have a method of communication to ground stations, called transponders. Many satellites use a standardized bus to save cost and work, the most popular of which are small CubeSats. Similar satellites can work together as groups, forming constellations. Becau ...
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National Aeronautics And Space Administration
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the United States's civil space program, aeronautics research and space research. Established in 1958, it succeeded the National Advisory Committee for Aeronautics (NACA) to give the American space development effort a distinct civilian orientation, emphasizing peaceful applications in space science. It has since led most of America's space exploration programs, including Project Mercury, Project Gemini, the 1968–1972 Apollo program missions, the Skylab space station, and the Space Shuttle. Currently, NASA supports the International Space Station (ISS) along with the Commercial Crew Program and oversees the development of the Orion spacecraft and the Space Launch System for the lunar Artemis program. NASA's science division is focused on better understanding Earth through the Earth Observing System; advancing heliophysics through the effor ...
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