Eutelsat W4

Also called Eutelsat 3F4. Renamed Eutelsat 36A in 2012

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General

Designation	26369 / 00028A
Launch date	24 May 2000
Country of origin	Europe
Mission	Telecommunications
Geostationary orbit	see below
Launch vehicle	Atlas 3A #127

Said to cost $200 million

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Location

Begin	End	Position
L: May 2000	Jun 2000	32°E
Jul 2000	Feb 2016	36°E, Eutelsat 36A
Apr 2016	Jun 2016	70.5°E, inclined, Eutelsat 70C
Sep 2016	Jan 2017	88.5°E, inclined
Feb 2017	May 2017	80.5°E, inclined
Sep 2017	Jul 2018	12.7°W, inclined
Oct 2018	Apr 2019	70.3°E, inclined
Apr 2019	Apr 2021	48.1°E, inclined
Jul 2021	Oct 2021	12.5°W, inclined

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End of life

Out of service	Oct 2021
Cause	Sent to junk orbit

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External resources

sat-index articles

Technical data

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Lyngsat transponder loading

EIRP coverage (dBW)
G/T coverage (dB/K)

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Specifications

Prime contractor	Aerospatiale (with DASA, Alenia & SS/L)
Platform	Spacebus-3000B2
Mass at launch	2950 kg (or 3190 kg?)
Mass in orbit	1810 kg
Dry mass	1375 kg
Dimension	4.6 x 2.5 x 1.8 m
Solar array	29 m span
Stabilization	3-axis
DC power	EOL: 5900 W
Design lifetime	12 years

Beacon: 11.706850 GHz

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Ku-band

Main transponders	31
Backup transponders
Power	90 W?
Bandwidth	33 MHz
Coverage	Russian beam (19 transp.) African beam (6 transp.) Steerable beam (6 transp.), for Nigeria
EIRP max	Russian beam: 52 dBW African beam: 42.5 dBW steerable: 52 dBW
G/T max	Africa: 0 dB/K Russia: +4.5 dB/K
Polarization	Russian beam: circular Other beams: linear
Frequencies	11.7 - 12.5 GHz

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Transponder frequency chart (GHz)

Transponder	Downlink	Uplink	Beam
1	11.72748 LHCP	17.32748 RHCP	Russia
2	11.74666 H	17.34666 V	Steerable
10	11.90010 H	17.50010 V	Steerable
19	12.07272 LHCP	1767272 RHCP	Russia
20	12.09190 H	17.69190 V	Steerable
21	12.11108 LHCP	17.71108 RHCP	Russia
22	12.13026 H	17.73026 V	Steerable
24	12.16862 H	17.76862 V	Steerable
25	12.18780 LHCP	17.78780 RHCP	Russia
26a	12.20698 RHCP	17.80698 LHCP	Russia
26b	12.20698 H	17.80698 V	Steerable
27	12.22616 LHCP	17.82616 RHCP	Russia
28	12.24534 RHCP	17.84534 LHCP	Russia
29	12.26452 LHCP	17.86452 RHCP	Russia
30a	12.28370 RHCP	17.88330 LHCP	Russia
30b	12.28370 H	17.88370 V	Central Africa
31	12.30288 LHCP	17.90288 RHCP	Russia
32a	12.32206 RHCP	17.92206 LHCP	Russia
32b	12.32206 H	17.92206 V	Central Africa
33	12.34124 LHCP	17.94124 RHCP	Russia
34a	12.36042 RHCP	17.96042 LHCP	Russia
34b	12.36042 H	17.96042 V	Central Africa
35	12.37960 LHCP	17.97960 RHCP	Russia
36a	12.39878 RHCP	17.99878 LHCP	Russia
36b	12.39878 H	17.99878 V	Central Africa
37	12.41796 LHCP	18.01796 RHCP	Russia
38a	12.43714 RHCP	18.03714 LHCP	Russia
38b	12.43714 H	18.03714 V	Central Africa
39	12.45632 LHCP	18.05632 RHCP	Russia
40a	12.47550 RHCP	18.07550 LHCP	Russia
40b	12.47550 H	18.07550 V	Central Africa

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