| AKARI | |
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Artist's conception of AKARI
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| General information | |
| Alternative names | ASTRO-F, IRIS |
| NSSDC ID | 2006-005A |
| Organization | JAXA |
| Launch date | 2006-02-21 |
| Launched from | Uchinoura Space Center, Japan |
| Mass | 955 kg |
| Orbit height | 694. The International Designator (or NSSDC ID) is an international naming convention for Satellites It consists of the launch year a 3-digit incrementing launch number The, or JAXA, is Japan's national Aerospace agency JAXA was formed on October 1 2003 as an Independent Administrative Institution through the Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 362 - Athanasius returns to Alexandria. 1245 - Thomas, the first known Bishop of Finland The is a space launch facility close to the Japanese city of Uchinoura, in Kagoshima Prefecture. For a topic outline on this subject see List of basic Japan topics. 5 km |
| Orbit period | 96. The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand 6 min |
| Location | Low Earth orbit |
| Telescope style | Richey-Chrétien reflector |
| Wavelength | infrared |
| Diameter | 0. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 A Low Earth Orbit (LEO is generally defined as an Orbit within the locus extending from the Earth’s surface up to an altitude of 2000 km In Physics wavelength is the distance between repeating units of a propagating Wave of a given Frequency. Infrared ( IR) radiation is Electromagnetic radiation whose Wavelength is longer than that of Visible light, but shorter than that of 67 m |
| Focal length | 4. The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International The focal length of an optical system is a measure of how strongly it converges (focuses or diverges (diffuses Light. 2 m (189 ft) |
| Instruments | |
| Far-Infrared Surveyor (FIS) | far-infrared camera/spectrometer |
| Infra-Red Camera (IRC) | near-infrared camera/spectrometer |
| Website www.ir.isas.jaxa.jp/ASTRO-F/Outreach/index_e.html |
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AKARI (launched under the name ASTRO-F) is an infrared astronomy satellite developed by Japan Aerospace Exploration Agency, in cooperation with institutes of Europe and Korea. Infrared ( IR) radiation is Electromagnetic radiation whose Wavelength is longer than that of Visible light, but shorter than that of A spectrometer is an Optical instrument used to measure properties of Light over a specific portion of the Electromagnetic spectrum, typically used Infrared astronomy is the branch of Astronomy and Astrophysics which deals with objects visible in Infrared (IR radiation A space observatory is any instrument in Outer space which is used for observation of distant planets galaxies and other outer space objects The, or JAXA, is Japan's national Aerospace agency JAXA was formed on October 1 2003 as an Independent Administrative Institution through the It was launched on 21:28, February 21, 2006 UTC (06:28, February 22 JST) by M-V rocket into Earth sun-synchronous orbit. Events 362 - Athanasius returns to Alexandria. 1245 - Thomas, the first known Bishop of Finland Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 1495 - King Charles VIII of France enters Naples to claim the city's throne Japan Standard Time or JST (日本標準時 or 中央標準時 is the standard Timezone of Japan, and is 9 hours ahead of UTC The M-V rocket also called M-5 or Mu-5, was a Japanese Solid-fuel rocket designed to launch scientific Satellites It was EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001 This article is about a class of orbits about the Earth For a class of orbits around the sun see Heliosynchronous orbit. After its launch it was named AKARI (あかり).
Its primary mission is to survey the entire sky in near-, mid- and far-infrared, through its 68. Infrared ( IR) radiation is Electromagnetic radiation whose Wavelength is longer than that of Visible light, but shorter than that of 5cm aperture telescope.
Its designed lifespan, of far- and mid-infrared sensors, is 550 days, limited by its liquid helium coolant. Helium ( He) is a colorless odorless tasteless non-toxic Inert Monatomic Chemical Near-infrared sensor will continue to operate after that with mechanical coolers at 40K.
The satellite is three-axis stabilized and the telescope is directed anti-Earth direction while the bus module faces toward Earth, to shield the telescope from the heat of Earth surface. The orbit is sun-synchronous and one side of the satellite is always directed toward Sun, and the telescope axis perpendicular to Sun, which simplifies heat shield design.
Its telescope mirror is made of silicon carbide to save weight. Silicon carbide ( is a compound of Silicon and Carbon bonded together to form Ceramics but it also occurs in nature as the extremely rare mineral The budget for the satellite was 13,4 billion Yen. (~110 Million US-Dollar) [1]
Contents |
Status
By mid-August 2006, AKARI finished around 50 % of the all sky survey. [2]
By early November 2006, first (phase-1) all-sky survey finished. Second (phase-2) all-sky survey started on November 10, 2006. Events 1444 - Battle of Varna: The crusading forces of King Vladislaus III of Varna (aka Ulaszlo I of Hungary and Wladyslaw Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. [3]
Due to the malfunction of sun-sensor after the launch, the ejection of telescope aperture lid was delayed, resulting the coolant lifespan estimate to be shortened to about 500 days from launch. However after JAXA estimated the remaining helium during early March 2007 observation time will be extended at least until September 9th. [4]
On July 11, 2007, JAXA informed that 90% of the sky was scanned twice. Events 911 - Signing of the Treaty of Saint-Clair-sur-Epte between Charles the Simple and Rollo of Normandy. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Also around 3500 selected targets have been observed so far. [5]
On August 26, 2007, liquid-Helium coolant depleted, which means the completion of far- and mid-infrared observation. Events 1071 - Battle of Manzikert: The Seljuk Turks defeat the Byzantine Army at Manzikert. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. 94% of the sky was scanned and more than 5000 pointed observations were done. [6]
The British and Japanese project team members were awarded a Daiwa Adrian Prize in 2004 by The Daiwa Anglo-Japanese Foundation in recognition of their collaboration. This Daiwa Adrian Prize is an award given by The Daiwa Anglo-Japanese Foundation to scientists who have made significant achievements in science through Anglo-Japanese collaborative The Daiwa Anglo-Japanese Foundation is a United Kingdom -based charity (registered no
During December 2007 JAXA performed orbit correction manoeuvres to bring AKARI back into its ideal orbit. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. This was necessary because the boiled off Helium led to an increase in altitude. If this would have continued energy supply would have been cut off. [[7]]
Results
http://www.ir.isas.jaxa.jp/ASTRO-F/Outreach/results/results_e.html
- The first infrared detection of a supernova remnant in the Small Magellanic Cloud
- Detection of mass-loss from relatively young red-giant stars in the globular cluster NGC 104
- Detection of the molecular gas surrounding the active galactic nucleus in the ultra luminous infrared galaxy
- The constellation Orion and the winter Milky Way at 140 micrometre
- Star forming region in the constellation Cygnus
- Active star formation viewed from the outside: The peculiar spiral galaxy M101
See also
External links
A nebula (from Latin: "mist" pl nebulae or nebulæ, with ligature or nebulas) is an Interstellar cloud of Vulpecula (vəlˈpɛkjʊlə Latin for "little Fox " is a faint northern Constellation located in the middle of the Summer Triangle The Small Magellanic Cloud (SMC is a Dwarf galaxy. It contains several hundred million stars A globular cluster is a spherical collection of Stars that orbits a galactic core as a Satellite. 47 Tucanae ( NGC 104) or just 47 Tuc is a Globular cluster located in the Constellation Tucana. An active galactic nucleus ( AGN) is a compact region at the centre of a Galaxy which has a much higher than normal luminosity over some or all of the Electromagnetic Cygnus (ˈsɪgnəs Swan, Κύκνος) is a northern Constellation. || 19 January, 1900 GMT || Atlas V (551|| LC-41, Cape Canaveral ||/ ILS || New Horizons || NASA ||Solar Escape||FlybyDapyx Software network: MP3 Explorer | Ebook Manager | Zenithic