DRTS W

Also called Kodama

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General

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.

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End of life

Out of service	Aug 2017
Cause	Sent to Junk orbit

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External resources

sat-index articles

Technical data

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Specifications

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

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