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'''Broadcasting Satellite''' or '''BS''' is a common name of one of the [[direct broadcast satellite]]s in Japan.
[[File:'''Broadcasting Satellite''' or '''BS''' is a common name of one of the [[direct broadcast satellite]]s in Japan.


The first satellite of this series, called BSE or [[Yuri]] was launched in 1978. The last BS series satellite, BS-3b, was launched in 1991.
The first satellite of this series, called BSE or [[Yuri]] was launched in 1978. The last BS series satellite, BS-3b, was launched in 1991.
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--[[Special:Contributions/121.242.65.213|121.242.65.213]] ([[User talk:121.242.65.213|talk]]) 08:00, 8 January 2010 (UTC)

== References ==
== References ==
{{reflist}}
{{reflist}}
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[[ja:放送衛星]]
[[ja:放送衛星]]
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Revision as of 08:00, 8 January 2010

[[File:Broadcasting Satellite or BS is a common name of one of the direct broadcast satellites in Japan.

The first satellite of this series, called BSE or Yuri was launched in 1978. The last BS series satellite, BS-3b, was launched in 1991.

The 350 kg BSE was followed in 1984 and 1986 by the operational and essentially identical BS-2a and BS-2b, respectively. Each spacecraft carried two active and one spare 100 W. 14/12 GHz transponders. Built by Toshiba with assistance from General Electric, the BS-2 series satellites were designed for five years of operation. BS-2a was moved to a graveyard orbit in 1989, followed by BS-2b in 1992.

BS satellites were used for Direct-To-Home television services in Japan. Japanese satellite television, which uses an analog format, started with test broadcasts carried out by the semigovernmental NHK (Japan Broadcasting Corporation) in 1984. It was considered that direct satellite TV reception (DTH) was obtainable by a small parabolic antenna from 40 cm to 60 cm in diameter in all areas of Japan when broadcast from a geostationary earth orbit (GEO) of 110 degrees of east longitude. All BS satellites have been of the same basic configuration: 3-axis stabilization of a rectangular spacecraft bus with two elongated solar arrays. After the first successful test of satellite broadcasting with a TV signal, many Japanese producers of consumer electronics began to deliver a range of equipment with built-in satellite receivers to the local consumer market.

Eventually, the satellites of the BS series were replaced by the more advanced B-Sat series.

Satellites

Satellite Launch Date Vehicle Launch Site NSSDC ID Comments
BSE 1978-04-07 Delta 2914 CCAFS LC-17 1978-039A Also known as "Yuri 1"
BS-2A 1984-01-23 N-2 Tanegashima 1984-005A Two of three transponders failed within three months[1]
BS-2B 1986-02-12 N-2 Tanegashima 1986-016A
BS-X 1990-02 Launch failure[2]
BS-2X 1990-02-22 Ariane 44L CSG Destroyed during launch of Ariane V36[3]
BS-3A 1990-08-28 H-I Tanegashima 1990-077A
BS-3H 1991-04-19 Atlas-Centaur CCAFS LC-36 Destroyed during launch of Atlas-Centaur #070[4]
BS-3B 1991-08-25 H-I Tanegashima 1991-060A
BS-3N 1994-07-08 Ariane 44L CSG 1994-040B

--121.242.65.213 (talk) 08:00, 8 January 2010 (UTC)

References

  1. ^ "Learning to compete in Japan, part 2". Entrepreneur.com. 1995.
  2. ^ Yeop, Oh W. (1991). "위성방송시대를 대비한 남북한 - 방송방식 통합에 관한 연구 TV" (PDF). Korea Telecom Association: 14. Retrieved 2009-02-15. {{cite journal}}: Cite journal requires |journal= (help); More than one of |author= and |last= specified (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
  3. ^ "TSE - Ariane V36". The Satellite Encyclopedia.
  4. ^ "TSE - Atlas AC070". The Satellite Encyclopedia.

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