Brasilsat B3

Also called SBTS B3

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General

Designation	25152 / 98006A
Launch date	4 Feb 1998
Country of origin	Brasil
Mission	Telecommunications
Geostationary orbit	see below
Launch vehicle	Ariane V105

Cost: $70 million agreement (without launch?) This is an amendment to the Brasilsat B contract with Hughes signed in 1990, which gave EMBRATEL options for additional spacecraft.

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Location

Begin	End	Position
L: 4 Feb 1998	Apr 1998	65°W
late May 1998	Aug 2008	84°W
Aug 2008	Apr 2012	75°W
Apr 2012	Jan 2013	75°W, inclined
Feb 2013	Nov 2016	92°W, inclined
Jan 2017	Aug 2018	63.2°W, inclined

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End of life

Out of service	Aug 2018
Cause	Sent to the junk orbit

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External resources

sat-index articles

Technical data

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Lyngsat transponder loading

Specifications

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EIRP coverage (dBW)

Brasil: National
Brasil: Regional

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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 & 4.1995 GHz horizontal

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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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