# SES-5 > communications satellite **Wikidata**: [Q1622625](https://www.wikidata.org/wiki/Q1622625) **Wikipedia**: [English](https://en.wikipedia.org/wiki/SES-5) **Source**: https://4ort.xyz/entity/ses-5 ## Summary SES-5 is a communications satellite operated by SES S.A. It is a geostationary satellite launched in 2012, designed to provide telecommunications services. SES-5 also plays a role as part of the European Geostationary Navigation Overlay Service (EGNOS). ## Key Facts * SES-5 is a communications satellite and a geostationary satellite. * It is operated by SES S.A. * The satellite was launched on July 9, 2012, at 18:38:30 UTC. * It was launched from Baikonur Cosmodrome Site 81/24 using a Proton-M launch vehicle and a Briz-M space tug. * SES-5 has a launch weight of 6086 kilograms. * Its manufacturer is Lanteris Space Systems, and it uses a Lanteris 1300 spacecraft bus. * The satellite has a design life of 15 years. * It is part of the European Geostationary Navigation Overlay Service (EGNOS). * Aliases for SES-5 include SES 5, Astra 4B, Sirius 5, and Sirius-5. ## FAQs ### Q: What is SES-5? A: SES-5 is a communications satellite operated by SES S.A. It is a geostationary satellite that was launched in 2012 to provide telecommunications services and support the European Geostationary Navigation Overlay Service (EGNOS). ### Q: Who operates the SES-5 satellite? A: The SES-5 satellite is operated by SES S.A., a global satellite operator. ### Q: When was SES-5 launched and by what vehicle? A: SES-5 was launched on July 9, 2012, by a Proton-M heavy-lift launch vehicle, which utilized a Briz-M space tug for orbital insertion. The launch took place from Baikonur Cosmodrome Site 81/24. ### Q: What is the primary purpose of SES-5? A: The primary purpose of SES-5 is to function as a communications satellite, providing telecommunications services. Additionally, it contributes to the European Geostationary Navigation Overlay Service (EGNOS). ### Q: What is the expected service life of SES-5? A: SES-5 has a design life of 15 years, indicating its intended operational period in orbit. ## Why It Matters SES-5 plays a crucial role in modern telecommunications and navigation infrastructure. As a geostationary communications satellite, it provides essential services for broadcasting, internet connectivity, and other data transmission across its coverage area. Its fixed position relative to the Earth allows for continuous and reliable communication links, which are vital for businesses, governments, and individuals. Furthermore, SES-5's involvement with the European Geostationary Navigation Overlay Service (EGNOS) highlights its significance in enhancing the accuracy and reliability of satellite navigation systems, such as GPS. EGNOS provides integrity messages and differential corrections, which are critical for applications requiring high precision and safety, including aviation, maritime, and land-based transportation. By contributing to EGNOS, SES-5 helps ensure safer and more efficient navigation across Europe and beyond. Its long design life of 15 years underscores its long-term commitment to these critical services, making it an important asset in the global space infrastructure. ## Notable For * Its dual role as a communications satellite and a component of the European Geostationary Navigation Overlay Service (EGNOS). * Being operated by SES S.A., a major global satellite operator. * Its launch using the powerful Russian Proton-M launch vehicle with a Briz-M space tug. * Utilizing the Lanteris 1300 spacecraft bus, manufactured by Lanteris Space Systems. * Its geostationary orbit, enabling continuous coverage for telecommunications and navigation overlay services. ## Body ### Overview SES-5 is an artificial satellite classified as a communications satellite and a geostationary satellite. It is operated by SES S.A. The satellite is also known by its aliases: SES 5, Astra 4B, Sirius 5, and Sirius-5. Its primary function involves providing telecommunications services and supporting the European Geostationary Navigation Overlay Service (EGNOS). ### Launch and Orbit SES-5 was launched on July 9, 2012, at 18:38:30 UTC. The launch took place from Baikonur Cosmodrome Site 81/24. The satellite was carried into space by a Proton-M heavy-lift launch vehicle, with a Briz-M space tug facilitating its final orbital insertion. SES-5 is positioned in a geostationary orbit. ### Technical Specifications The satellite has a launch mass of 6086 kilograms. It was manufactured by Lanteris Space Systems and is built upon the Lanteris 1300 spacecraft bus. SES-5 is powered by two spacecraft solar arrays and features R-4D and four SPT-100 thrusters for propulsion and station-keeping. The satellite has a design life of 15 years. ### Mission and Services As a communications satellite, SES-5 provides telecommunications capabilities. A significant aspect of its mission is its integration into the European Geostationary Navigation Overlay Service (EGNOS). EGNOS is a regional satellite-based augmentation system (SBAS) that improves the accuracy and reliability of global navigation satellite systems (GNSS) signals, such as GPS, for users in Europe. ### Identifiers * **SCN (Satellite Catalog Number):** 38652 * **COSPAR ID:** 2012-036A * **NSSDCA ID:** 2012-036A * **Freebase ID:** /m/0vxdfss ## References 1. [Source](https://space.skyrocket.de/doc_sdat/ses-5.htm) 2. [Source](https://www.satbeams.com/satellites?norad=38652) 3. [Source](https://egnos.gsc-europa.eu/resources-tools/egnos-visibility-map) 4. Jonathan's Space Report 5. Freebase Data Dumps. 2013