&sq=Envato&lang=en&file=File:Scale_model_of_the_Akari_(ASTRO-F,_2006-005A)_exhibited_at_Noshiro_City_Children%27s_Center.jpg) Artist's conception of AKARI | |
| Mission type | Infrared telescope |
|---|---|
| Operator | JAXA |
| COSPAR ID | 2006-005A |
| SATCAT no. | 28939 |
| Website | global |
| Mission duration | 5 years, 9 months |
| Spacecraft properties | |
| Manufacturer | ISAS |
| Launch mass | 952 kg (2,099 lb) |
| Dimensions | 5.5 m × 1.9 m × 3.2 m (18.0 ft × 6.2 ft × 10.5 ft) |
| Start of mission | |
| Launch date | 21:28, 21 February 2006 (UTC)[1] |
| Rocket | M-V, mission M-V-8 |
| Launch site | M-V Pad, Uchinoura Space Center |
| End of mission | |
| Disposal | decommissioned |
| Deactivated | 24 November 2011 |
| Decay date | 11 April 2023, 04:44 UTC |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Sun-synchronous |
| Semi-major axis | 6,884 km (4,278 mi)[2] |
| Eccentricity | 0.0129527[2] |
| Perigee altitude | 423.9 km (263.4 mi)[2] |
| Apogee altitude | 602.3 km (374.3 mi)[2] |
| Inclination | 98.2 degrees[2] |
| Period | 94.7 minutes[2] |
| RAAN | 305.9392 degrees[2] |
| Argument of perigee | 124.2012 degrees[2] |
| Mean anomaly | 354.1441 degrees[2] |
| Mean motion | 15.1995622 rev/day[2] |
| Epoch | 9 July 2015, 13:43:21 UTC[2] |
| Revolution no. | 50455[2] |
| Main | |
| Type | Ritchey–Chrétien |
| Diameter | 0.67 m (2.2 ft) |
| Focal length | 4.2 m (14 ft) |
| Wavelengths | 1.7 to 180 μm (Infrared) |
| Instruments | |
| FIS: Far-Infrared Surveyor IRC: Infra-Red Camera | |
AKARI (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).
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]
- ^ Stephen Clark (21 February 2006). "Japanese infrared space observatory goes into orbit". Spaceflight Now. Retrieved 20 February 2010.
- ^ a b c d e f g h i j k l "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.