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| Mission type | Communications Technology |
|---|---|
| Operator | JAXA NICT NTT |
| COSPAR ID | 2006-059A |
| SATCATno. | 29656 |
| Website | www |
| Mission duration | 10 years |
| Spacecraft properties | |
| Bus | DS-2000 |
| Manufacturer | Mitsubishi Electric |
| Launch mass | 5,800 kilograms (12,800 lb) |
| Start of mission | |
| Launch date | 18 December 2006, 06:32 (2006-12-18UTC06:32Z) UTC[1] |
| Rocket | H-IIA 204 |
| Launch site | TanegashimaYoshinobu 1 |
| Contractor | Mitsubishi |
| Entered service | 9 May 2007 |
| End of mission | |
| Deactivated | 10 January 2017 (2017-01-11) |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 145.7° east |
| Semi-major axis | 42,163.77 kilometres (26,199.35 mi) |
| Eccentricity | 0.0005611 |
| Perigee altitude | 35,769 kilometres (22,226 mi) |
| Apogee altitude | 35,816 kilometres (22,255 mi) |
| Inclination | 3.04 degrees |
| Period | 23.93 hours |
| RAAN | 68.56 degrees |
| Argument of perigee | 138.47 degrees |
| Epoch | 29 October 2013, 19:34:27 UTC[2] |
JAXAEngineering Test SatelliteETS-VIII (Kiku 8) was the eighth technology test satellite in a series which started with ETS-1 in 1975 byNASDA. It was launched with theH-2A on December 18, 2006. ETS-VIII was developed byJAXA in cooperation withNICT andNTT. The aim of ETS-VIII was to enablesatellite communications with small terminals. Unlike theIridium satellites for mobile communication, ETS-VIII was positioned atGEO.However to fulfill the task, it was essential that the satellite carried two very large antennas. It was the first use of the 204 configuration (four strap-on boosters) of the H-IIA launch vehicle.
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