cosmos.wikisort.org - SpacecraftAkari (ASTRO-F) was an infrared astronomy satellite developed by Japan Aerospace Exploration Agency, in cooperation with institutes of Europe and Korea. It was launched on 21 February 2006, at 21:28 UTC (06:28, 22 February JST) by M-V rocket into Earth sun-synchronous orbit. After its launch it was named Akari (明かり), which means light in Japanese. Earlier on, the project was known as IRIS (InfraRed Imaging Surveyor).
Infrared astronomy satellite developed by Japan Aerospace Exploration Agency
For other uses, see Akari (disambiguation).
Akari Artist's conception of Akari |
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Mission type | Infrared telescope |
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Operator | JAXA |
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COSPAR ID | 2006-005A  |
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SATCAT no. | 28939 |
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Website | global.jaxa.jp/projects/sat/astro_f/ |
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Mission duration | 5 years, 9 months |
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Manufacturer | ISAS |
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Launch mass | 952 kg (2,099 lb) |
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Dimensions | 5.5 m × 1.9 m × 3.2 m (18.0 ft × 6.2 ft × 10.5 ft) |
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Power | 2006-02-21 21:28 |
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Launch date | 21:28, 21 February 2006 (UTC) (2006-02-21T21:28UTC)[1] |
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Rocket | M-V, mission M-V-8 |
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Launch site | M-V Pad, Uchinoura Space Center |
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Disposal | decommissioned |
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Deactivated | 24 November 2011 (2011-11-24) |
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Reference system | Geocentric |
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Regime | Sun-synchronous |
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Semi-major axis | 6,884 km (4,278 mi)[2] |
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Eccentricity | 0.0129527[2] |
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Perigee altitude | 423.9 km (263.4 mi)[2] |
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Apogee altitude | 602.3 km (374.3 mi)[2] |
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Inclination | 98.2 degrees[2] |
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Period | 94.7 minutes[2] |
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RAAN | 305.9392 degrees[2] |
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Argument of perigee | 124.2012 degrees[2] |
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Mean anomaly | 354.1441 degrees[2] |
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Mean motion | 15.1995622 rev/day[2] |
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Epoch | 9 July 2015, 13:43:21 UTC[2] |
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Revolution no. | 50455[2] |
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Type | Ritchey–Chrétien |
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Diameter | 0.67 m (2.2 ft) |
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Focal length | 4.2 m (14 ft) |
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Wavelengths | 1.7 to 180 µm (Infrared) |
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FIS: Far-Infrared Surveyor IRC: Infra-Red Camera |
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Its primary mission was to survey the entire sky in near-, mid- and far-infrared, through its 68.5 cm (27.0 in) aperture telescope.[3]
Technical design
Its designed lifespan, of far- and mid-infrared sensors, was 550 days, limited by its liquid helium coolant.[4]
Its telescope mirror was made of silicon carbide to save weight. The budget for the satellite was ¥13,4 billion (~US$110 million).[5]
History
By mid-August 2006, Akari finished around 50 percent of the all sky survey.[6]
By early November 2006, first (phase-1) all-sky survey finished. Second (phase-2) all-sky survey started on 10 November 2006.[7]
Due to the malfunction of sun-sensor after the launch, ejection of telescope aperture lid was delayed, resulting in the coolant lifespan estimate being shortened to about 500 days from launch. However, after JAXA estimated the remaining helium during early March 2007, observation time was extended at least until 9 September.[8]
On 11 July 2007, JAXA informed that 90 percent of the sky was scanned twice. Also around 3,500 selected targets have been observed so far.[9]
On 26 August 2007, liquid-Helium coolant depleted, which means the completion of far- and mid-infrared observation. More than 96 percent of the sky was scanned and more than 5,000 pointed observations were done.[10]
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.[11]
During December 2007, JAXA performed orbit correction manoeuvres to bring Akari back into its ideal orbit. 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.[12]
2008-2010
A limited observation 'warm' programme continued with just NIR.
End of mission
In May 2011, Akari suffered a major electrical failure and the batteries could not take full charge from the solar panels. As a result, its science instruments were rendered inoperable when the satellite was in the Earth's shadow.[3] The operation of satellite was terminated officially on 24 November 2011.[13]
Results
- Star formation over three generations in the nebula IC4954/4955 in the constellation Vulpecula.[14]
- 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
- Dust processing in the supernova remnants in the Large Magellanic Cloud
The Akari All-Sky Survey Point Source Catalogues was released on 30 March 2010.[15][16][17]
Astronomy and Astrophysics, Vol. 514 (May 2010) was a feature issue of Akari's result.[18]
See also
- Infrared astronomy
- List of largest infrared telescopes
- List of space telescopes
- SPICA, Akari's successor space telescope
References
- Stephen Clark (21 February 2006). "Japanese infrared space observatory goes into orbit". Spaceflightnow. Retrieved 20 February 2010.
- "ATRO-F (AKARI) Satellite details 2006-005A NORAD 28939". N2YO. 6 July 2015. Retrieved 6 July 2015.
- "JAXA Hopes To Keep Akari Going Despite Power Failure". Space News International. 27 May 2011. Archived from the original on 3 February 2013. Retrieved 17 August 2011.
- "The Infrared Astronomical Satellite AKARI and Nikon". Nikon. September 2007. Archived from the original on 2 March 2013. Retrieved 26 November 2011.
- "Fueling trust in rocket science". The Japan Times. 28 February 2006. Retrieved 16 May 2010.
- Issei Yamamura (August 2006). "AKARI Mission Lifetime". AKARI Newsletter. Vol. 16. Archived from the original on 25 May 2011. Retrieved 16 May 2010.
- "The Infrared Astronomical Satellite AKARI and Nikon". Nikon. September 2007. Archived from the original on 11 May 2010. Retrieved 16 May 2010.
- Issei Yamamura (9 March 2007). "AKARI Cryogenic Lifetime". AKARI Newsletter. Vol. 18. Archived from the original on 25 May 2011. Retrieved 16 May 2010.
- "Current Status of the AKARI Mission After one year of observations". Archived from the original on 31 July 2007. Retrieved 12 July 2007.
- Usui, Fumihiko; Kuroda, Daisuke; MÜLler, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; Ishihara, Daisuke; Kataza, Hirokazu; Takita, Satoshi; Oyabu, Shinki; Ueno, Munetaka; Matsuhara, Hideo; Onaka, Takashi (2011). "Asteroid Catalog Using AKARI: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. ISSN 0004-6264.
- http://www.dajf.org.uk/wp-content/uploads/DAP-2013-fact-sheet.doc [bare URL DOX/DOCX file]
- Issei Yamamura (26 February 2008). "Happy Birthday, AKARI!". AKARI Newsletter. Vol. 21. Archived from the original on 25 May 2011. Retrieved 16 May 2010.
- "赤外線天文衛星「あかり」(ASTRO-F)の運用終了について" (in Japanese). JAXA. 24 November 2011. Retrieved 24 November 2011.
- "AKARI (ASTRO-F) Results". JAXA/ISAS/LIRA. 28 November 2008. Archived from the original on 25 May 2011. Retrieved 16 May 2010.
- "新世代の赤外線天体カタログ、日本から世界に公開へ" (Press release) (in Japanese). 30 March 2010. Archived from the original on 2 April 2010. Retrieved 30 March 2010.
- "DARTS/AKARI at ISAS/JAXA".
- "AKARI | Research | Archive | PSC".
- Bertout, C. (May 2010). "Special feature on AKARI results". Astronomy and Astrophysics. 514: E1. Bibcode:2010A&A...514E...1B. doi:10.1051/0004-6361/201014744. ISSN 0004-6361. Archived from the original on 26 February 2021.
External links
Space observatories |
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Operating | |
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Planned |
- iWF-MAXI (2021)
- Astro-1 Telescope (2021)
- Nano-JASMINE (2021)
- ORBIS (2021)
- ILO-X (2022)
- PETREL (2022)
- Space Solar Telescope (2022)
- Euclid (2023)
- K-EUSO (2023)
- SVOM (2023)
- XPoSat (2023)
- XRISM (2023)
- Xuntian (2023)
- LORD (2024)
- COSI (2025)
- Spektr-UV (2025)
- SPHEREx (2025)
- Nancy Grace Roman Space Telescope (2026)
- NEO Surveyor (2026)
- PLATO (2026)
- Solar-C EUVST (2026)
- JASMINE (2028)
- LiteBIRD (2028)
- ARIEL (2029)
- Spektr-M (2030+)
- Athena (2035)
- LISA (2037)
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Proposed |
- Arcus
- AstroSat-2
- EXCEDE
- Fresnel Imager
- FOCAL
- HabEx
- Hypertelescope
- ILO-1
- JEM-EUSO
- LUCI
- LUVOIR
- Lynx
- Nautilus Deep Space Observatory
- New Worlds Mission
- NRO donation to NASA
- OST
- PhoENiX
- Solar-D
- THEIA
- THESEUS
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Retired | |
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Hibernating (Mission completed) | |
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Lost/Failed | |
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Cancelled | |
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Related |
- Great Observatories program
- List of space telescopes
- List of proposed space observatories
- List of X-ray space telescopes
- List of planetariums
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Category:Space telescopes
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Japanese space program |
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Astronomical observation | Completed | |
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In operation | |
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Failed | |
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Planned |
- ATHENA2
- EUVST
- HiZ-GUNDAM
- LiteBIRD
- Nano-JASMINE
- Small-JASMINE
- Nancy Grace Roman Space Telescope1
- WSO-UV5
- XRISM1
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Canceled | |
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Communications, broadcasting and navigation | Completed |
- BS
- Kakehashi
- Kirari
- Kizuna
- Kodama
- MBSat
- N-STAR
- Sakura (1
- 2a
- 2b
- 3a
- 3b)
- Yuri
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In operation |
- Kirameki
- Michibiki
- MTSAT
- N-STAR
- JDRS
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Planned | |
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Earth observation | Completed | |
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In operation | |
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Planned | |
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Engineering tests | Completed | |
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In operation | |
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Planned |
- BEAK
- ETS-IX
- G-SATELLITE
- SERVIS-3
- Small Demonstration Satellite
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Canceled | |
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Human spaceflight | Completed | |
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In operation | |
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Planned |
- H-II Transfer Vehicle
- Lunar Gateway1245
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Cancelled | |
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Lunar and planetary exploration | Completed | |
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In operation |
- Akatsuki
- BepiColombo (MMO/Mio)2
- Hayabusa2
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Failed | |
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Planned |
- Comet Interceptor2
- DESTINY+
- EQUULEUS
- HERACLES24
- JUICE2
- LUPEX8
- MELOS
- MMX
- OMOTENASHI
- SLIM
- TEREX
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Cancelled | |
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Proposed | |
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Private miniaturized satellites | Completed | |
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In operation | |
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Planned | |
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Reconnaissance | Completed | |
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In operation | |
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Planned | |
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- Italics indicates projects in development.
- Superscripts indicate joint development with1NASA, 2ESA, 3ASI, 4CSA, 5RKA, 6AEB, 7INPE and 8ISRO.
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← 2005 · Orbital launches in 2006 · 2007 → |
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January | |
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February | |
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March | |
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April | |
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May | |
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June | |
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July | |
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August | |
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September | |
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October | DirecTV-9S · Optus D1 · LDREX | MetOp-A | Progress M-58 | Shijian 6C · Shijian 6D | STEREO | Sinosat-2 | XM-4 |
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November | |
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December | |
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Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in underline. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets. |
Astronomical surveys |
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Photographic | |
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Infra-red | |
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Radio |
- C-BASS
- GALEX Arecibo SDSS Survey (GASS)
- HIPASS
- NVSS
- Ohio Sky Survey
- PALFA Survey
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Spectroscopic | |
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Authority control  |
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General | |
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National libraries | |
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На других языках
[de] ASTRO-F
ASTRO-F ist ein Weltraum-Infrarotteleskop der japanischen Raumfahrtbehörde JAXA mit Beteiligung von ESA, Großbritannien, Niederlande und Südkorea. Die Planungen für den Satelliten begannen 1997, der ursprünglich für 2003 geplante Start wurde aufgrund von Problemen mit der Spiegelaufhängung verschoben. Der Start erfolgte am 21. Februar 2006 um 22:28 MEZ mit einer M-V-Rakete vom Uchinoura Space Center, wobei der ASTRO-F in einen sonnensynchronen Erdorbit in 750 km Höhe gebracht wurde. Nach dem Start erhielt der 955 kg schwere Satellit den Namen Akari, japanisch für Licht.
- [en] Akari (satellite)
[es] ASTRO-F
ASTRO-F (o Akari) es un satélite de astronomía infrarroja diseñado por la JAXA, en colaboración con universidades e institutos técnicos de Europa y Corea. Fue lanzado el 21 de febrero de 2006 por un cohete M-V a una órbita polar terrestre. Tras el lanzamiento fue rebautizado como Akari, que significa "luz" en japonés.
[ru] Akari
Акари (яп. あかり Акари, «Свет», до запуска — Astro-F) — японский научный спутник для исследования космического пространства в инфракрасном диапазоне. Спутник запущен 22 февраля в 06:28 (21 февраля в 21:28 UTC) 2006 года с космодрома Утиноура с помощью ракеты-носителя «Мю-5». После запуска спутник получил название «Akari», что переводится как «Свет». Вместе с обсерваторией на орбиту попутно также были выведены ещё две полезные нагрузки — радиолюбительский наноспутник CUTE-1.7 и экспериментальный солнечный парус Solar Sail.
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