Galaxy 18 is a commercial geostationary satellite operated by Intelsat at position 123.0° W. Its primary coverage area includes North and South America, the Caribbean basin and the Atlantic region. The spacecraft carries television content, corporate data transmission channels and backup lines for telecommunications operators. The sathub database records 33 transponders and 84 channels in C and Ku bands.
Launch and technical specifications
The satellite was launched into orbit on 27 December 2013 by Ariane 5 rocket from the Guiana Space Centre in French Guiana. The manufacturer is Space Systems Loral (SSL), platform SSL 1300. This is one of the most widely used commercial platforms in the industry: reliable, well-proven, with substantial resource margin. The design lifetime is 15 years. International catalogues track the spacecraft under NORAD ID 32951.
Coverage areas and reception in Ukraine
Galaxy 18 forms beams covering North America, Central and South America, the Caribbean region and the Atlantic. Position 123.0° W is far beyond the horizon for any point in Ukraine. A domestic antenna is ineffective here, even if enlarged to 1.8 m. Reception is only possible at professional ground stations with dishes from 3.7 m — and primarily in the context of transatlantic trunk lines.
| Beam | Coverage | Minimum antenna diameter |
|---|---|---|
| North America Beam | USA, Canada, Mexico | 0.75–1.2 m |
| Central & South America Beam | Central and South America | 1.2–1.8 m |
| Caribbean Beam | Caribbean basin | 1.2 m |
| Atlantic Ocean Region | Atlantic region (trunk lines) | from 3.7 m |
| Ukraine | Outside coverage area — domestic reception not possible | from 3.7 m (professional stations) |
Transponders and frequency bands
The satellite operates in C and Ku bands. The C-band is virtually unaffected by rain and fog — which is why it is chosen for trunk and backup lines where stability is critical. The Ku-band is oriented towards direct broadcasting and corporate VSAT networks. DVB-S2 modulation enables efficient traffic compression: HD, SD and broadband data are transmitted within a single transponder capacity. In total, the sathub database records 33 active transponders.
Television packages and open channels
The primary payload of Galaxy 18 is television packages for the American market. Applications include channel distribution for the USA and Canada, transatlantic links between America and Europe, corporate networks for large enterprises, and backup services for telecommunications operators. The sathub database records 84 channels for this satellite — both closed packages and open FTA streams.
Frequently asked questions
- Can Galaxy 18 be received in Ukraine with a standard dish?
- No. Position 123.0° W is far beyond the horizon for Ukraine. Reception is only possible at professional ground stations with antennas from 3.7 m.
- What frequency bands does Galaxy 18 use?
- C and Ku. C-band is used for trunk and backup lines, Ku-band for broadcasting and VSAT networks.
- How many transponders and channels are available on Galaxy 18?
- The sathub database records 33 transponders and 84 channels in both bands.
- What platform is the satellite built on and what is its design lifetime?
- Space Systems Loral SSL 1300 platform. The design lifetime is 15 years from launch in December 2013.