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Winds


Wideband Inter-Networking engineering test and Demonstration Satellite, also called Kizuna

General


Designation 32500 / 08007A
Launch date 23 Feb 2008
Country of origin Japan
Mission Telecommunications (experimentai)
Geostationary orbit see below
Launch vehicle H2A #21

Will experiment high speed internet such as 155 Mbps (down) and 6 Mbps (up) for households and upto 1.2 Gpbs for offices (5m antenna needed). Tests were successfull with a 45-cm antenna (user) and a 1.2-m antenna (ground station) at 155 Mbps.

In May 2008, 2-way Internet link running at 1.2Gbps each way was achieved!

Location


Begin End Position
L: Mar 2008 Aug 2016 143°E
Aug 2016   143°E, inclined


External resources


http://www.jaxa.jp/projects/sat/winds/index_e.html

sat-index articles


Technical data



Specifications


Prime contractor JAXA and National Institute of Information and Communications Technology (NICT)
Platform  
Mass at launch 4850 kg
Dry mass 2700 kg
Dimension  
Solar array  
Stabilization 3-axis
DC power EOL: 5 kW
Design lifetime 5 years

Will test 3 new equipements:
- two new antennas with a Multi-Beam Antenna (MBA, 2.4m) and a Multi-Port Amplifier (MPA). The MBA has 19 beams.

- a new active phased array antenna (APAA, change of coverage area)

- onboard ATM switching router (3 channels at 155 Mbps)

Ka-band


Main transponders  
Backup transponders  
Power  
Bandwidth  
Coverage 3 beams:
- MBA to Japan: 9 small beams
- MBA to Asia Pacific: Seoul, Beijing, Shanghai, Hong Kong, Manila, Bnagkok, Bangalore, Kuala Lumpur, Singapore, Jakarta
- APAA: Hawaii and Sydney
EIRP max  
Polarization  
Frequencies Uplink:
Downlink:



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