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Brasilsat B4


Also called SBTS B4

General


Designation 26469 / 00046A
Launch date 17 Aug 2000
Country of origin Brasil
Mission Telecommunications
Geostationary orbit see below
Launch vehicle Ariane V131

Same as Brasilsat B3, will replace Brasilsat A2. Tested at 75°W.

Cost close to $150 million including launch and insurance

Location


Begin End Position
L: 17 Aug 2000 Sep 2000 75°W
Oct 2000 Jan 2007 92°W
Feb 2007 Jun 2008 70°W
Jul 2008 Oct 2016 84°W
Nov 2016   91.9°W


External resources


sat-index articles


Technical data


Lyngsat transponder loading


Specifications


EIRP coverage (dBW)


Brasil: National
Brasil: Regional


C-band


Main transponders 28
Backup transponders  
Power 24 x 15.3 W
4 x 16.5 W
Bandwidth 27 x 36 MHz
1 x 33 MHz (1AE)
Coverage Brasil: National
Brasil: Regional
EIRP max 38 dBW
G/T max -2.5 dB/K
Polarization linear H/V

No X-band payload: the C-band only spacecraft will provide nearly 20 percent higher signal power than the 2 Brasilsat B's. It will have one C-band beam for national service, and a second C-band regional beam that will focus higher power on the major urban areas.

Beacon: 4.1985 & 4.1998 GHz horizontal

Transponder frequency chart (GHz)


Horizontal
Uplink
Horizontal
Downlink
Channel Vertical
Downlink
Vertical
Uplink
Beam
  3.6415 1AE   5.8665 Brasil: Regional or Brasil: National
5.885   1BE 3.660   Brasil: Regional or Brasil: National
  3.680 2AE   5.905 Brasil: Regional or Brasil: National
5.925   2BE 3.700   Brasil: Regional or Brasil: National
  3.720 1A   5.945 Brasil: National
5.965   1B 3.740   Brasil: National
  3.760 2A   5.985 Brasil: National
6.005   2B 3.780   Brasil: National
  3.800 3A   6.025 Brasil: National
6.045   3B 3.820   Brasil: National
  3.840 4A   6.065 Brasil: National
6.085   4B 3.860   Brasil: National
  3.880 5A   6.105 Brasil: National
6.125   5B 3.900   Brasil: National
  3.920 6A   6.145 Brasil: National
6.125   6B 3.940   Brasil: National
  3.960 7A   6.185 Brasil: National
6.205   7B 3.980   Brasil: National
  4.000 8A   6.225 Brasil: National
6.245   8B 4.020   Brasil: National
  4.040 9A   6.265 Brasil: National
6.285   9B 4.060   Brasil: National
  4.080 10A   6.305 Brasil: National
6.325   10B 4.100   Brasil: National
  4.120 11A   6.345 Brasil: National
6.365   11B 4.140   Brasil: National
  4.160 12A   6.385 Brasil: National
6.405   12B 4.180   Brasil: National


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