WINDS
{{Short description|Defunct Japanese communication satellite}}
{{Distinguish|Wind (spacecraft)}}
{{Use dmy dates|date=July 2019}}
{{Infobox spaceflight
| name = WINDS (Kizuna)
| image = H-IIA F14 launching KIZUNA.jpg
| image_caption = Launch of WINDS (Kizuna) on H-IIA Flight 14.
| mission_type = Communication
| website = [http://www.jaxa.jp/projects/sat/winds/index_e.html JAXA]
| COSPAR_ID = 2008-007A
| SATCAT = 32500
| mission_duration = 5 years (design)
Final: {{time interval|23 February 2008 08:55|27 February 2019 06:54|show= yd|sep=,}}
| spacecraft_bus = NX-G
| manufacturer = NEC
| dry_mass =
| launch_mass = {{convert|4850|kg|lb}}
| BOL_mass = {{convert|2750|kg|lb}}
| power =
| launch_date = {{start-date|23 February 2008, 08:55|tz=y}} UTC
| launch_rocket = H-IIA
| launch_site = Tanegashima Y1
| launch_contractor = Mitsubishi
| entered_service =
| disposal_type = Decommissioned
| deactivated = {{end-date|27 February 2019, 06:54|tz=y}} UTC
| orbit_epoch = 00:00:00 UTC 2016-08-31
| orbit_reference = Geocentric
| orbit_regime = Geostationary
| orbit_periapsis = {{convert|35784.1|km|mi}}
| orbit_apoapsis = {{convert|35803.8|km|mi}}
| orbit_inclination = 0.2 °
| orbit_period = 1,436.1 minutes
| orbit_semimajor ={{convert|42164|km|mi}}
| orbit_longitude = 143° East
| orbit_slot =
| apsis = gee
| trans_band =
| trans_frequency =
| trans_bandwidth =
| trans_capacity =
| trans_coverage =
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
}}
WINDS (Wideband InterNetworking engineering test and Demonstration Satellite, also known as Kizuna), was a Japanese communication satellite. Launch was originally scheduled for 2007.
Launch
The launch date was eventually set for 15 February 2008, but a problem detected in a second stage maneuvering thruster delayed it to 23 February. Lift-off occurred at 08:55 GMT on 23 February from Tanegashima Space Center, and the satellite separated from its H-IIA carrier rocket into a Geosynchronous transfer orbit at 09:23.
Purpose
WINDS was used to relay the internet to Japanese homes and businesses through Ka-Band signals. It also tested technologies that would be utilised by future Japanese communication satellites. A part of Japan's i-Space program, WINDS was operated by JAXA and NICT.
Prior to launch, a JAXA brochure claimed that WINDS will be able to provide 155 Mbit/s download speeds to home users with 45-centimetre diameter satellite dishes, while providing industrial users via 5-metre diameter dishes with 1.2 Gbit/s speeds.{{cite web|url=http://www.jaxa.jp/pr/brochure/pdf/04/sat07.pdf|title=JAXA - 超高速インターネット衛星―WINDS|publisher=JAXA|access-date=2008-02-23|date=2007-12-26|url-status=dead|archive-url=https://web.archive.org/web/20080228013051/http://www.jaxa.jp/pr/brochure/pdf/04/sat07.pdf|archive-date=2008-02-28}}
Specs
WINDS had a launch mass of 4,850 kg, reducing to a mass of around 2,750 kg after thrusting to its operational orbit. The spacecraft is 8 m x 3 m x 2 m in size, and its solar panels have a span of 21.5 metres. It has three-axis stabilisation, and a design life expectancy of five years.
Decommission
See also
References
{{reflist|2|refs=
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External links
- [http://www.jaxa.jp/projects/sat/winds/index_e.html JAXA website about WINDS]
- [http://spacefellowship.com/News/?p=4601 LIVE COVERAGE: H-IIA KIZUNA (WINDS) Launch (updated 1:20 GMT) 1:20 GMT (8:20 pm EST): T-6 hours. Fueling of the H-IIA has commenced]
{{Japanese space program}}
{{Orbital launches in 2008}}
{{DEFAULTSORT:Winds}}
Category:Spacecraft launched in 2008
Category:Spacecraft launched by H-II rockets
Category:Communications satellites in geostationary orbit
{{Japan-spacecraft-stub}}
{{telecommunications-stub}}