BS 3a, 3b, 3n (Yuri 3a, 3b, 3n) (original) (raw)

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BS 3a (Yuri 3a) [NASDA]

The BS-3 or Yuri 3 satellites were a series of Japanese direct broadcasting satellites.

The BS-3 were launched to replace the broadcasting serices of the BS-2, responding to growing broadcasting needs while developing technologies for more advanced broadcasting satellites. They were used for broadcasting and test broadcasting with high-definition television. In 1993, the program was spun off from NASDA to the Broadcasting Satellite System Corporation of Tokyo (B-SAT).

The satellites were based on GE Astro's AS-3000 bus and carried a NEC built broadcasting payload consisting of three active high power Ku-band transponders with three spares.

BS-3a, renamed Yuri 3a, was launched on 28 August 1990 on a Japanese H-1 UM-129A (9 SO) rocket. BS-3a finished its programmed operation on 20 April 1998.

BS-3b, renamed Yuri 3b, was launched about one year later on 25 August 1991 on a Japanese H-1 UM-129A (9 SO) rocket. BS-3b finished its programmed operation on 1 December 1998.

BS-3n or Yuri 3n, was launched on 8 July 1994 on a shared Ariane-44L H10+ launch.

The successor of these satellites were B-Sat's BSat 1a and 1b satellites.

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