This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "ETS-VIII" – news · newspapers · books · scholar · JSTOR (May 2010) (Learn how and when to remove this template message)
Kiku 8
Mission typeCommunications
COSPAR ID2006-059A
SATCAT no.29656
Mission duration10 years
Spacecraft properties
ManufacturerMitsubishi Electric
Launch mass5,800 kilograms (12,800 lb)
Start of mission
Launch date18 December 2006, 06:32 (2006-12-18UTC06:32Z) UTC[1]
RocketH-IIA 204
Launch siteTanegashima Yoshinobu 1
Entered service9 May 2007
End of mission
Deactivated10 January 2017 (2017-01-11)
Orbital parameters
Reference systemGeocentric
Longitude145.7° east
Semi-major axis42,163.77 kilometres (26,199.35 mi)
Perigee altitude35,769 kilometres (22,226 mi)
Apogee altitude35,816 kilometres (22,255 mi)
Inclination3.04 degrees
Period23.93 hours
RAAN68.56 degrees
Argument of perigee138.47 degrees
Epoch29 October 2013, 19:34:27 UTC[2]

JAXA Engineering Test Satellite ETS-VIII (Kiku 8) is the eighth technology test satellite in a series which started with ETS-1 in 1975 by NASDA. It was launched with the H-2A on December 18, 2006. ETS-VIII was developed by JAXA in cooperation with NICT and NTT. The aim of ETS-VIII is to enable satellite communications with small terminals. Unlike the Iridium satellites for mobile communication, ETS-VIII is positioned at GEO. However to fulfill the task the satellite must carry two very large antennas. It was the first use of the 204 configuration (four strap-on boosters) of the H-IIA launch vehicle.



  1. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 30 October 2013.
  2. ^ Peat, Chris (29 October 2013). "ETS 8 - Orbit". Heavens Above. Retrieved 30 October 2013.
  3. ^ 「きく8号」の運用終了について (in Japanese). JAXA. January 11, 2017. Retrieved January 12, 2017.