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Sirius 4



Sirius 4 is a Swedish geostationary communications spacecraft that was launched by a Proton-M rocket from Baikonur at 22:40 UT on 17 November 2007. (It is also listed as SES Sirius 4, by prefixing the operating company's name). The 4.4 tonne (with fuel) craft carries 52 Ku-band and two Ka-band transponders to provide direct-to-home (DTH) TV and internet services to Europe and sub- Saharan Africa after parking over 5.0° E longitude.

Alternate Names

  • Astra 4A
  • 32299
  • SES Sirius 4
  • Sirius4

Facts in Brief

Launch Date: 2007-11-17
Launch Vehicle: Proton-M
Launch Site: Tyuratam (Baikonur Cosmodrome), Kazakhstan

Funding Agency

  • SES (Sweden)


  • Communications

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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