Akebono (known as EXOS-D before launch) is a satellite to study aurora and Earth's magnetosphere environment.
It was developed by Institute of Space and Astronautical Science and launched by M-3SII rocket on February 21, 1989.
Quick facts Names, Mission type ...
Akebono| Names | EXOS-D |
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| Mission type | Earth observation |
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| Operator | ISAS · University of Tokyo |
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| COSPAR ID | 1989-016A |
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| SATCAT no. | 19822 |
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| Mission duration | Final: 26 years, 2 months, 1 day |
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| Launch mass | 294 kg (648 lb) |
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| Launch date | 21 February 1989, 23:30 (1989-02-21UTC23:30) UTC |
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| Rocket | M-3SII, mission M-3SII-1 |
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| Launch site | Uchinoura Space Center, Japan |
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| Disposal | Decommissioned |
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| Deactivated | 23 April 2015 |
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| Decay date | 26 November 2024[1] |
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| Reference system | Geocentric |
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| Regime | Low Earth |
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| Eccentricity | 0.36552 |
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| Perigee altitude | 300 km (190 mi) |
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| Apogee altitude | 8,000 km (5,000 mi) |
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| Inclination | 75° |
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| Epoch | 20 February 1989, 19:00 UTC |
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| Instruments |
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| EFD | Electric Field Detectors |
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| MGF | Magnetic Field Detector |
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| VLF | Very Low Frequency Wave Detectors |
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| PWS | Stimulated Plasma Wave and High Frequency Plasma Wave Detectors |
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| LEP | Low Energy Particle Detectors |
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| SMS | Suprathermal Ion Mass Spectrometer |
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| TED | Velocity Distribution of Thermal Electrons |
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| ATV | Visible and UV Auroral Television |
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Close
After 26 years of successful observation, operation was terminated on April 23, 2015, due to the degradation of solar cells and the decay of orbit.[2]
