JAPAN COMMERCIAL COMMUNICATIONS SATELLITES
(Listed by operator name and chronologically by launch date)
JSAT Corporation Broadcasting Satellite System Corp. Space Communications Corp.
Nippon Telephone & Telegraph Mobile Broadcasting Corp.

 
JSAT Corporation (JSAT)
Designation Location
(Longitude)		 Launch/DIO* Manufacturer Satellite Bus Design Lifetime Frequency Band Transponders
(Bandwidth x No.)		 Notes
JCSAT-1 JCSAT-1 150° E. 6 March 1989 Boeing Satellite Systems, Inc. (BSS) Model 393 10 years Ku-band 27MHz x 1 Japan's first commercial communications satellite. Now retired.
JCSAT-2 JCSAT-2 154° E. 1 Jan. 1990 BSS Model 393 10 years Ku-band 27MHz x 1 SKYPerfecTV! DBS broadcasts.
JCSAT-3 JCSAT-3 128° E. 29 Aug. 1995 BSS Model 601 12 years
Ku-band
C-band
36MHz x 12
27MHz x 16

36MHz x 12

 Digital multichannel broadcasts, corporate internal networks on Ku-band. C-band used for international telecommunications within Asia-Pacific region.
JCSAT-4 JCSAT-4 128° E. 16 Feb. 1997 BSS Model 601 12 years
Ku-band
C-band
36MHz x 12
27MHz x 16

36MHz x 12

 Four of the 27MHz Ku-band transponders can be switched to 54MHz from ground command.
JCSAT-R(4) JCSAT-R 128° E. 17 Feb. 1997 BSS Model 601 12 years Ku-band
C-band		 36MHz x 12
27MHz x 16

36MHz x 12		 JCSAT-4 backup.
JCSAT-5 JCSAT-1B(5) 150° E. 3 Dec. 1997 BSS Model 601 12 years Ku-band 36MHz x 16
27MHz x 16		 JCSAT-1 replacement.
JCSAT-6 JCSAT-4A(6) 124° E. 16 Feb. 1999 BSS Model 601 12 years Ku-band 27MHz x 32 With JCSAT-3, handles SKYPerfecTV! broadcasts, corporate internal networks, satellite intranet services.
JCSAT-110 JCSAT-110
(also N-SAT-110 & Superbird-D)		 110° E. 8 Oct. 2000 Lockheed Martin Commercial Space Systems (LMCSS) Model A2100AX 15 years Ku-band 36MHz x 12 Used for SKYPerfecTV!'s DTH broadcast services
JCSAT-8 JCSAT-2A(8) 154° E. 29 March 2002 BSS Model 601 12 years Ku-band
C-band
 57MHz x 16

36MHz x 11
54MHz x 5		 JCSAT-2 replacement.
JCSAT-8 Horizons-1 127° W.  1 October 2003 BSS Model 601HP 15 years Ku-band 36MHz x 24 Covers North America and Hawaii & works with JCSAT-2a to create a seamless network of coverage.
JCSAT-110 JCSAT-9
(JCSAT-5A)		 132° E. 12 April 2006 LMCSS Model A2100AX 12 years Ku-band

C-band		 36MHz x 20

36MHz x 20		 Communications services throughout Asia and Japan.
JCSAT-110 JCSAT-10   2006
(planned)		 LMCSS Model A2100AX 15 years Ku-band 36MHz x 12 Communications services throughout Asia and Japan.
JCSAT-110 JCSAT-11   6 September 2007 LMCSS Model A2100AX 15 years Ku-band & C-band 36MHz x 12 Destroyed during second stage launch failure.
JCSAT-110 JCSAT-12   Summer 2009
(planned)		 LMCSS Model A2100AX 15 years Ku-band & C-band 36MHz x 12 Backup satellite for other JSAT satellites.

 

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Broadcasting Satellite System Corporation of Tokyo (B-SAT)
Designation Location (Longitude) Launch Date/DIO* Manufacturer Satellite Bus Design Lifetime Frequency Band Transponders (Bandwidth x No.) Notes
  BS-3N(A) 110° E.   Boeing Satellite Systems, Inc. (BSS)         Retired.
  BS-3N(B) 110° E.   BSS         Retired.
BSAT-1A BSAT-1A 110° E. 16 April 1997 BSS Model 376 10 years Ku-band 36MHZ x 8 NHK Hi-Vision, Wow-Wow DBS. Replaced one of BS-3 pair.
BSAT-1B BSAT-1B 110° E. 28 April 1998 BSS Model 376 10 years Ku-band 36MHZ x 4
(+4 spare trans.)		 NHK Hi-Vision, Wow-Wow DBS. Replaced one of  BS-3 pair.
BSAT-2A BSAT-2A 110° E. 8 March 2001 Orbital Sciences Corp. (OSC) GEO
Star™  model		 10 years Ku-band   Direct-to-home
 digital HDTV.
BSAT-2B BSAT-2B 110° E. 12 July 2001 Lockheed Martin Commercial Space Systems (LMCSS) Model A2100AX 15 years Ku-band 36MHz x 12 Lost on launch due to booster failure.
Unrecoverable.
BSAT-2A BSAT-2C 110° E. 11 June 2003 OSC GEO
Star™ model		 10 years Ku-band 4-channel transmission repeater Backup for BSAT-2A
BSAT-2B BSAT-3A 110° E. Second quarter of 2007 LMCSS Model A2100A Over 13 years Ku-band 36MHz x 8 Direct broadcast services throughout Japan.

 

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Space Communications Corporation (SCC)
Designation Location (Longitude) Launch Date/DIO* Manufacturer Satellite Bus Design Lifetime Frequency Band Transponders (Bandwidth x No.) Notes
Superbird-A2 Superbird-A 158° E. 2 Dec. 1992 Space Systems/Loral (SS/L) Model
  FS1300		 10 years Ku-band

Ka-band		 36MHz x 23

100MHz x 3		 Supports Satellite News Gathering, emergency communication in disasters, satellite telephone service, DirecPC high speed data delivery.
Superbird-B Superbird-B 162° E.   Boeing Satellite Systems, Inc. (BSS) Model 601 12 years Ku-band

Ka-band 		36MHz x 23

100MHz x 5 		Now retired. Replaced by Superbird-B2
Superbird-C Superbird-C 144° E. 28 July 1997 BSS Model 601 12 years Ku-band 54MHz x 4
36MHz x 4
27MHz x 16		 Previously supported DirecTV DBS broadcasts. DirecPC broadband data transmission.
Superbird-C Superbird-B2(4) 162° E. 18 Feb. 2000 BSS Model
 601HP		 13 years Ku-band


 Ka-band
 36MHz x 23
(+5 spare trans.)

100MHz x 5
200Mhz x 1		  Broadband and high-speed data services carried on Ka-band. Replaces Superbird-B1.
  Superbird-D 110° E. 7 October 2000 Lockheed Martin Commercial Space Systems (LMCSS) Model A2100AX 13 years Ku-band 36MHz x 12 Distributive digital services.
Superbird-C Superbird-A2(6) 158° E. 15 April 2004 BSS Model
 601		 12 years
Ku-band

Ka-band
36MHz x 23
100MHz x 4

 Image transmission for News, relays for events and HDTV, high data rate/wide-area transmission for corporate communications, DirecPC, VSAT services. Replacement for Superbird-A.
Superbird-C Superbird-7 144° E. First quarter of 2008 SCC Model
 DS2000		 12 years Ku-band 36MHz x 28 Communications services, including video, audio broadcast to home, CATV and mobile terminals for the Asia-Pacific region.

 

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NTT Mobile Communication Network, Inc.; NTT East; NTT West
Designation Location (Longitude) Launch Date/DIO* Manufacturer Satellite Bus Design LIfetime Frequency Band Transponders (Bandwidth x No.) Notes
N-Star A N-Star A 132° E. 29 Aug. 1995 Space Systems/Loral (SS/L) Model FS1300 10 years
Ka-band


Ku-band
C-band
100MHz x 5
200MHz x 6

54MHz x 8
72MHz x 5
Telecommunications carrier services. Owned by JSAT, but used exclusively by NTT group.
N-Star B N-Star B 136° E. 5 Feb. 1996 SS/L Model FS1300 10 years
Ka-band
Ku-band
C-band

100MHz x 5
200MHz x 6

54MHz x 8
72MHz x 5
Telecommunications carrier services. Owned by JSAT, but used exclusively by NTT group.
N-Star C N-Star C 136° E. 5 July 2002 Orbital Systems/Lockheed Martin (OSC/LMCSS) Model STAR-2 10 years S-band

C-band		 5-for-4 SSPA groups x 3
2-for-1 SSPAs		 Mobile communications and data transfer services

 

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Mobile Broadcasting Corporation (MBCO)
Designation Location (Longitude) Launch Date/DIO* Manufacturer Satellite Bus Design Lifetime Frequency Band Transponders (Bandwidth x No.) Notes
MBSAT MBSAT 144° E. 13 March 2004 Space Systems/Loral (SS/L) Model
FS1300		 12 years S-band

Ku-band		 25MHz x 16

25MHz x 1		 High quality music, video, and data delivered to mobile users.

*Delivered in-orbit
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Last File Update: 09/28/07