O3b
| O3b 1 | |
|---|---|
| Start date | June 25, 2013, 19:27 UTC |
| Launcher | Soyuz-ST-B / Fregat |
| Launch site | Center Spatial Guyanais |
| COSPAR-ID : | 2013-031A-D |
| Takeoff mass | 700 kg |
| Manufacturer | Thales Alenia Space |
| Satellite bus | ELiTeBus |
| lifespan | ten years |
| operator | O3b |
| Playback information | |
| Transponder | 10 Ka band |
| Bandwidth | 2 × 216 MHz per beam |
| Others | |
| Electrical power | 1.5 kW |
| List of geostationary satellites | |
O3b is the name of commercial communications satellites from the British company O3b Networks , part of the SES group of companies. The satellite constellation was advertised as offering Internet access and telecommunications services to the 3 billion people in structurally weak areas of the world ("the other 3 billion"). The contract to launch the satellites by Arianespace was signed in December 2011. The satellites will be launched in groups of four and will travel on similar orbits.
construction
The three-axis stabilized satellites with 12 Ka-band - transponders fitted (by Thales 10) and 12 small antennas and may be used near the equator of the forwarding of Internet data in structurally weak areas. They were built on the basis of the ELiTeBus satellite bus from Thales Alenia Space . The satellites are supplied with energy via two solar cell panels and associated batteries. The drive and position control system consists of a total of eight small engines.
status
The first four satellites of this type were launched on June 25, 2013 at 19:27 UTC with a Soyuz-ST-B with Fregat-MT upper stage from the Center Spatial Guyanais in French Guiana into an approximately 7,825 km high orbit directly above the Brought to the equator . Four further launches, each with four satellites, took place on July 10, 2014, December 18, 2014, March 9, 2018 and April 4, 2019.
A second generation of seven “O3b mPower” satellites is to be launched in 2021 with two flights with the Falcon 9 rocket.
Web links
- Second batch of four O3b satellites successfully launched . Thales, July 11, 2014
Individual evidence
- ↑ Arianespace: Launch Kit (PDF; 1 MB)
- ↑ Arianespace: O3b signs agreement with Arianespace for third Soyuz launch
- ↑ Günther Glatzel: Soyuz launches the first four O3b satellites. raumfahrer.net, June 26, 2013, accessed on September 11, 2014 .
- ^ Arianespace launches O3b satellites on Soyuz mission. Arianespace, July 10, 2014, accessed September 11, 2014 .
- ^ William Graham: Arianespace Soyuz ST-B successfully launches four O3b satellites. nasaspaceflight.com, December 18, 2014, accessed December 19, 2014 .
- ↑ Soyuz rocket with European satellites launches from French Guiana - VIDEO . Sputnik News, March 9, 2018.
- ^ William Graham, Chris Bergin: Soyuz ST-B lofts another set of O3b satellites. In: nasaspaceflight.com. April 4, 2019, accessed April 4, 2019 .
- ↑ SpaceX to launch SES's O3b mPower constellation on two Falcon 9 rockets. Spacenews, September 9, 2019, accessed September 9, 2019 .