SES-5
Communications satellite
title: "SES-5" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["ses-satellites", "communications-satellites-in-geostationary-orbit", "spacecraft-launched-in-2012", "satellites-using-the-ssl-1300-bus", "satellites-of-luxembourg"] description: "Communications satellite" topic_path: "general/ses-satellites" source: "https://en.wikipedia.org/wiki/SES-5" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Communications satellite ::
::data[format=table title="Infobox spaceflight"]
| Field | Value |
|---|---|
| name | SES-5 |
| names_list | SES-5 (2011-present) |
| Astra 4B (2010-2011) | |
| Sirius 5 (2008-2010) | |
| image_size | 300px |
| mission_type | Communications |
| operator | SES Sirius / SES World Skies / SES |
| COSPAR_ID | 2012-036A |
| SATCAT | 38652 |
| website | https://www.ses.com/ |
| mission_duration | 15 years (planned) |
| (elapsed) | |
| spacecraft_bus | SSL 1300 |
| manufacturer | Space Systems/Loral |
| launch_mass | 6086 kg |
| launch_date | 9 July 2012, 18:38:30 UTC |
| launch_rocket | Proton-M / Briz-M |
| launch_site | Baikonur, Site 81/24 |
| launch_contractor | Khrunichev State Research and Production Space Center |
| entered_service | September 2012 |
| orbit_reference | Geocentric orbit |
| orbit_regime | Geostationary orbit |
| orbit_longitude | 5° East |
| apsis | gee |
| trans_band | 60 transponders: |
| 24 C-band | |
| 36 Ku-band | |
| trans_bandwidth | C-band: 36 MHz |
| Ku-band: 33-36 MHz | |
| trans_coverage | Atlantic Ocean |
| Sub-Saharan Africa | |
| North Africa | |
| Europe | |
| Middle East | |
| programme | Astra constellation |
| previous_mission | Astra 1N |
| next_mission | Astra 2F |
| :: |
| name = SES-5 | names_list = SES-5 (2011-present) Astra 4B (2010-2011) Sirius 5 (2008-2010) | image = | image_caption = | image_size = 300px
| mission_type = Communications | operator = SES Sirius / SES World Skies / SES | COSPAR_ID = 2012-036A | SATCAT = 38652 | website = https://www.ses.com/ | mission_duration = 15 years (planned) (elapsed)
| spacecraft = | spacecraft_type = | spacecraft_bus = SSL 1300 | manufacturer = Space Systems/Loral | launch_mass = 6086 kg | dry_mass = | dimensions = | power =
| launch_date = 9 July 2012, 18:38:30 UTC | launch_rocket = Proton-M / Briz-M | launch_site = Baikonur, Site 81/24 | launch_contractor = Khrunichev State Research and Production Space Center
| entered_service = September 2012 | disposal_type = | deactivated = | last_contact =
| orbit_reference = Geocentric orbit | orbit_regime = Geostationary orbit | orbit_longitude = 5° East | apsis = gee
| trans_band = 60 transponders: 24 C-band 36 Ku-band | trans_frequency = | trans_bandwidth = C-band: 36 MHz Ku-band: 33-36 MHz | trans_capacity = | trans_coverage = Atlantic Ocean Sub-Saharan Africa North Africa Europe Middle East
| programme = Astra constellation | previous_mission = Astra 1N | next_mission = Astra 2F
SES-5 (also known as Astra 4B and Sirius 5) is a commercial geostationary communication satellite operated by SES It was launched on 9 July 2012. The launch was arranged by International Launch Services (ILS).
History
In October 2008, SES Sirius AB of Sweden (then 90% owned by SES and prior to 2003 called Nordic Satellite AB) ordered the Sirius 5 satellite from Space Systems/Loral. Following full acquisition by SES in 2010, SES Sirius was renamed SES Astra (a subsidiary of SES) and the satellite renamed Astra 4B. In 2011, SES Astra was merged back into SES and the satellite renamed SES-5.
Satellite description
It was constructed by Space Systems/Loral, and is based on the SSL 1300 satellite bus. It carries 24 C-band and 36 Ku-band transponders. It covers Atlantic Ocean, Sub-Saharan Africa, North Africa, Europe, Middle East.
EGNOS payload
SES 5 is also carrying a hosted payload L-band navigation terminal for the executive commission of the 27-nation European Union. The terminal operated as part of the European Geostationary Navigation Overlay Service (EGNOS) system, which provides verification of Global Positioning System (GPS) navigation signals through the use of satellites in geostationary orbit.
Launch
Sirius 5 was the original name of the SES-5 satellite. SES-5 that was launched on 9 July 2012, at 18:38:30 UTC from Baikonur Cosmodrome, Site 81/24 and is now co-located with Astra 4A (Sirius 4) at 5° East. This satellite provides a similar European and African coverage as Astra 4A.
References
References
- "Satellites". SatBeams.
- [https://www.spacedaily.com/reports/SES_Orders_New_Sirius_5_Satellite_From_Loral_999.html ''SES Orders New Sirius 5 Satellite from Loral''] Space Daily. 10 October 2008. Accessed 27 May 2020
- [https://www.broadbandtvnews.com/2010/06/23/ses-sirius-changes-name-%E2%80%93-to-astra/ ''SES Sirius changes name – to Astra''] Broadband TV News. 23 June 2010. Accessed 27 May 2022
- [https://www.broadbandtvnews.com/2011/05/02/ses-adopts-new-management-structure/ ''SES adopts new management structure''] Broadband TV News. 2 May 2011. Accessed 27 May 2022
- (20 January 2020). "SES 5 / Astra 4B". Gunter's Space Page.
- "SES-5". SES World Skies.
- (5 April 2021). "Display: SES-5 2012-036A". NASA.
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