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Jcsat 3



General


Designation 23649 / 95043A
Launch date 29 Aug 1995
Country of origin Japan
Mission Telecommunications
Geostationary orbit 128°E
Launch vehicle Atlas Centaur #94

GTO: 167 km x 81432 km x 23.5°

In 1995 leases were said to cost ¥550 million a year for 27 MHz transponders and ¥600 million a year for 36 MHz transponders.
Went inclined in May 2006. Left service on 20 Oct 2006.

End of life


Out of service Feb 2007
Cause Moved off GEO


External resources


sat-index articles


Technical data


Lyngsat transponder loading


EIRP coverage (dBW)


C-band
Ku-band

Specifications


Prime contractor Hughes
Platform HS-601
Mass at launch  
Mass in orbit 1841 kg
Dimension stowed: 2.8 x 3.8 x 4.9 m
Solar array 26.2 m span
Stabilization 3-axis
DC power 4600 W
Design lifetime 12 years

NEC Corp. of Japan is a major subcontractor to Hughes for the payload electronics.

C-band


Main transponders 12
Backup transponders  
Power 34 W (SSPA)
Bandwidth 36 MHz
Coverage Asia & Australia
EIRP max 37 dBW
Polarization linear H/V


Transponder frequency chart (GHz)


Horizontal
downlink
Transponder Vertical
downlink
  C1 3.960
3.980 C2  
  C3 4.000
4.020 C4  
  C5 4.040
4.060 C6  
  C7 4.080
4.100 C8  
  C9 4.120
4.140 C10  
  C11 4.160
4.180 C12  


Ku-band


Main transponders 28
Backup transponders  
Power 60 W (TWTA)
Bandwidth 16 transponders of 27 MHz
12 transponders of 36 MHz
Coverage & EIRP max Japan: 55 dBW
Eastern Asia, India & Australia: 43-35 dBW
Polarization Linear H/V


Transponder frequency chart (GHz)


Horizontal
downlink
Transponder Vertical
downlink
Bandwidth (MHz)
  K1 12.258 36
12.288 K2   36
  K3 12.308 36
12.328 K4   36
  K5 12.348 36
12.368 K6   36
  K7 12.388 36
12.408 K8   36
  K9 12.428 36
12.448 K10   36
  K11 12.468 36
12.488 K12   36
  K13 12.508 27
12.523 K14   27
  K15 12.538 27
12.553 K16   27
  K17 12.568 27
12.583 K18   27
  K19 12.598 27
12.613 K20   27
  K21 12.628 27
12.643 K22   27
  K23 12.658 27
12.673 K24   27
  K25 12.688 27
12.703 K26   27
  K27 12.718 27
12.733 K28   27

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