picture of the encyclopedia
Version 0.81 comes with a new web design! Please allow popups for navigation.


Also called Kodama


Designation 27516 / 02042B
Launch date 10 Sep 2002
Country of origin Japan
Mission Telecommunications
Geostationary orbit 90°E
Launch vehicle H2A #10

Cost: $268 million. Became operational on 10 Jan 2003.

The satellite failed to enter GTO right after launch because of a failure of the bipropellant apogee engine; the third firing was incomplete. It reached GEO a few days later.

The relay payload is working, was able to relay realtime data from Adeos 2. In Nov 2006 Envisat 1 managed to downlink through it.

Went into safe mode on 28 Oct 2003 after a large solar storm.

Went inclined in Jan 2011. Replaced by JDRS 1 in late 2020.

End of life

Out of service Aug 2017
Cause Sent to Junk orbit

External resources

sat-index articles

Technical data


Prime contractor Mitsubishi Electric (Melco)
Platform DS-2000
Mass at launch 2800 kg
Dry mass 1300 kg
Dimension 2.2 x 2.4 x 2.2 m
Solar array 2.4 x 7.3 m
Stabilization 3-axis
DC power EOL: 2100 W
Design lifetime 7 years

Should operate in S- and Ka-band for inter satellite links and in Ka-band with the ground stations

Inter satellite link antenna: 3.6 m diameter; feeder link antenna: 1.8 m diameter

© TBS Internet, all rights reserved. All reproduction, copy or mirroring prohibited. Legal notice
francais anglais contact