HellasSat 3
| HellasSat 3 / Inmarsat-S-EAN | |
|---|---|
| Start date | June 28, 2017, 21:15 UTC |
| Launcher | Ariane 5 ECA VA 238 |
| Launch site | CSG , ELA-3 |
| COSPAR-ID : | 2017-040A |
| Takeoff mass | 5780 kg |
| Empty mass | 2500 kg |
| Dimensions | 5.5 × 2 × 2.2 m |
| Span in orbit | 37 xm |
| Manufacturer | Thales Alenia Space |
| Satellite bus | Spacebus 4000C4 |
| lifespan | 15 years |
| Stabilization | Three-axis stabilization |
| operator | Hellas Sat and Inmarsat |
| Playback information | |
| Transponder | S-band -, Ka-band - and Ku-band - Transponder |
| Transponder performance | 120 watt TWTAs |
| Others | |
| Electrical power | 14.5 kW (EOL) |
| position | |
| First position | 39 ° East |
| List of geostationary satellites | |
HellasSat 3 / Inmarsat-S-EAN is a commercial communications satellite operated by Hellas Sat and Inmarsat .
It was on June 28, 2017 21:15 UTC with an Ariane 5 ECA - carrier rocket from the rocket launch site Guiana Space Center (along with GSAT-17 ) into a geostationary brought orbit.
The three-axis stabilized satellite is with S-band -, Ka-band - and Ku-band - transponders equipped and is on the position of 39 degrees East, Europe, the Middle East and North Africa provide telecommunications services and television. For Inmarsat, the payload consists of S-band multifunctional transponders for the European Aviation Network , a planned network of cellular radio stations and satellites for the provision of mobile Internet on intra-European flights. EAN seamlessly connects communication via an Inmarsat S-band satellite with a ground-based, high-performance LTE cellular network from Deutsche Telekom. An EAN aircraft receives its data both from above (S-band) and from below (EAN). For Hellas Sat there are 47 Ku-band transponders (44 at the end of their service life) and 1 Ka-band transponder on board. It was built on the basis of the Thales Alenia Space Spacebus 4000C4 satellite bus and has a planned service life of 15 years. The agreement between Hellas Sat and Inmarsat was announced in 2014.
Web links
- Thales Alenia Space: manufacturer website
- Hellas Sat: operator website
- Inmarsat: operator website
Individual evidence
- ↑ a b Inmarsat: SATELLITE MISSION - Inmarsat , accessed on June 30, 2017.
- ↑ a b Arianespace: Ariane Flight VA238 - Arianespace , accessed June 30, 2017.
- ↑ Hellas Sat: HS3 - Satellite Data | Hellas Sat ( memento from June 25, 2017 in the Internet Archive ), accessed on June 30, 2017.
- ↑ a b c NASASpaceFlight.com: Ariane 5 conducts dual payload launch for three providers , accessed June 30, 2017.
- ↑ Deutsche Telekom: Deutsche Telekom: European Aviation Network welcomes first airline customer , accessed on June 30, 2017.
- ↑ Golem.de: Ka-, Ku- and EAN / S-Band: The fast airplane internet becomes reality - Golem.de , accessed on June 30, 2017.
- ↑ Telekom: EAN
- ↑ Hellas Sat: Thales Alenia Space to build a joint satellite for Inmarsat and Hellas-Sat ( Memento from March 29, 2017 in the Internet Archive ), accessed on June 30, 2017.