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Satélite EUROBIRD 1 e ASTRA 2A/2B/2D/1N - 28,5.º e 28,2º Este - Portugal

Novembro 30, 2011

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Posição orbital de referência na recepção satélite europeia. Na realidade, são duas posições, mas dada a sua proximidade são invariavelmente identificadas como uma única.


Através desta constelação de satélites são difundidos os pacotes digitais da BBC, ITV, FREESAT e SKY.


A cobertura radioelétrica para a nossa posição geográfica é excelente, exceptuando os feixes "North" transmitidos pelos Astra 2A e 2B, os quais não são de todo recebidos em Portugal.

O diâmetro mínimo de antena aconselhado será de 90 centímetros para o ASTRA 2D, enquanto que o EUROBIRD 1 e os restantes satélites ASTRA - no que toca à recepção dos feixes "South" - podem ser recebidos com antenas a partir de 60cm de diâmetro.


No arquipélogo da Madeira, é possível a recepção do Eurobird 1 e do feixe "South" dos Astra utilizando uma antena com diâmetro mínimo estimado em 1,20 metros.

Embora no arquipélogo da Madeira seja possível, embora de forma limitada, a sua recepção já nos Açores não é possível de todo.

Quanto ao novo ASTRA 1N, acaba mesmo de chegar a esta posição orbital.

Lista de transponders destes satélites
Clique no nome para fazer o download:-
EUROBIRD 1 e ASTRA 2A/2B/2D/1N - 28,5.º e 28,2º Este


INFORMAÇÃO TÉCNICA


ASTRA 2A


Satellite Name: Astra 2A
Status: active
Position: 28° E (28.2° E)
Norad: 25462
Cospar number: 1998-050A
Operator: SES S.A.
Launch date: 30-Aug-1998
Launch site: Baikonur Cosmodrome
Launch vehicle: Proton K
Launch mass (kg): 3635
Dry mass (kg): 2300
Manufacturer: Boeing (Hughes)
Model (bus): BSS-601HP
Orbit: GEO
Expected lifetime: 15 yrs.
Call sign:
Beacon(s):
Details:
32 Ku-band (for first five years, 28 after) transponders to provide voice and video communications to Europe.
Beams:
Ku-band North Beam (active)
Ku-band South Beam (active)


ASTRA 2B

Satellite Name: Astra 2B
Status: active
Position: 28° E (28.2° E)
Norad: 26494
Cospar number: 2000-054A
Operator: SES S.A.
Launch date: 14-Sep-2000
Launch site: Guiana Space Center
Launch vehicle: Ariane 5 G
Launch mass (kg): 3315
Dry mass (kg): 1400
Manufacturer: EADS Astrium
Model (bus): Eurostar-2000+
Orbit: GEO
Expected lifetime: 14 yrs.
Call sign:
Beacon(s):
Details:
30 Ku-band (for first five years, 28 after) transponders to provide Direct-to-home; broadcasting, multimedia services to UK and Ireland.
Beams:
Ku-band North Beam (active)
Ku-band South Beam (active)
Ku-band Steerable Beam (active)


ASTRA 2D


Satellite Name: Astra 2D
Status: active
Position: 28° E (28.2° E)
Norad: 26638
Cospar number: 2000-081A
Operator: SES S.A.
Launch date: 19-Dec-2000
Launch site: Guiana Space Center
Launch vehicle: Ariane 5 G
Launch mass (kg): 1420
Dry mass (kg): 700
Manufacturer: Boeing (Hughes)
Model (bus): BSS-376HP
Orbit: GEO
Expected lifetime: 15 yrs.
Call sign:
Beacon(s): 10701.25V
Details:
16 Ku-band transponders providing Direct-to-home; broadcasting, multimedia services to UK and Ireland.
Beams:
Ku-band UK/Ireland Beam (active)

ASTRA 1N

Satellite Name: Astra 1N
Status: active
Position: 28° E (28.2° E)
Norad: 37775
Cospar number: 2011-040A
Operator: SES S.A.
Launch date: 6-Aug-2011
Launch site: Guiana Space Center
Launch vehicle: Ariane 5 ECA
Launch mass (kg): 5350
Dry mass (kg):
Manufacturer: EADS Astrium
Model (bus): Eurostar-3000
Orbit: GEO
Expected lifetime: 15 yrs.
Call sign:
Beacon(s):
Details:
52 active Ku-band transponders to provide direct-to-home digital and high-definition television broadcasting to Europe
Beams:
Ku-band Pan European 1 beam (active)
Ku-band Pan European 2 beam (active)
Ku-band UK Spot beam (active)


EUROBIRD 1

Satellite Name: Eurobird 1 (Eutelsat W1R, Europesat 1)
Status: active
Position: 28° E (28.5° E)
Norad: 26719
Cospar number: 2001-011A
Operator: Eutelsat Communications S.A.
Launch date: 8-Mar-2001
Launch site: Guiana Space Center
Launch vehicle: Ariane 5 G
Launch mass (kg): 2950
Dry mass (kg): 1375
Manufacturer: Thales Alenia Space
Model (bus): Spacebus-3000B2
Orbit: GEO
Expected lifetime: 12 yrs.
Call sign:
Beacon(s): 11200H, 12501H
Details:
24 (+6) Ku-band transponders covering Western and Central Europe as far west as Canary Islands.
Beams:
Ku-band Fixed Beam (active)
Ku-band Steerable 1 Beam (active)
Ku-band Steerable 2 Beam (active)

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