Intelsat 29e
| Intelsat 29e | |
|---|---|
| Start date | January 27, 2016, 23:20 UTC |
| Launcher | Ariane 5 ECA VA-228 |
| Launch site | CSG , ELA-3 |
| COSPAR-ID : | 2016-004A |
| Takeoff mass | 6552 kg |
| Empty mass | 2946 kg |
| Dimensions | 6 × 3 × 2 m |
| Span in orbit | 44 m |
| Manufacturer | Boeing Satellite Systems |
| model | BSS-702MP |
| Satellite bus | Boeing 702 |
| lifespan | 3 years |
| Stabilization | Three-axis stabilized |
| operator | Intelsat |
| Playback information | |
| Transponder | 249 Ku-band , 24 C-band and one Ka-band transponder |
| Bandwidth | 36 MHz bandwidth in the Ku band (9395 MHz total downlink), 36 MHz in the C band |
| Others | |
| Electrical power | 15.8 kW |
| Power storage | four lithium-ion battery sets |
| position | |
| First position | 50 ° west |
| List of geostationary satellites | |
Intelsat 29e is a former commercial communications satellite of the International Telecommunications Satellite Consortium ( Intelsat ). Operated from 2016 to April 2019, it broadcast video and data signals across America and to aircraft over the North Atlantic .
history
Intelsat 29e was on 27 January 2016, a five Ariane - carrier rocket from the rocket launch site Guiana Space Center into a geostationary transfer orbit brought. The rocket's upper stage was separated at 0:58 a.m.CET. The final position in geostationary orbit should be reached on February 7, 2016. He was supposed to take over the role of Intelsat 1R and Intelsat 805 . Boeing announced the order to build Intelsat 29e as the first satellite for Intelsat's EpicNG program on September 4, 2012.
On April 7, 2019, damage and a fuel leak occurred in the satellite's propulsion system. Since then it has been out of control and drifted eastwards along the geostationary orbit by about 0.5 degrees per day. On April 11th, it passed NASA's TDRS 3 satellite at a relative speed of around 1 km / s . A video recording from the Intelsat 29e shows that it flashed briefly on the same day and a few seconds later it explosively emitted a cloud of gas. Afterwards, various pieces of debris were observed and an increased speed of one degree per day was measured.
On April 18, 2019, Intelsat declared the satellite lost. A commission of inquiry set up together with Boeing came to the conclusion that the damage was caused either by a harness flaw (a wiring problem ?) And an electrostatic discharge in connection with solar wind activity or by the impact of a micrometeorite .
technology
The three-axis stabilized satellite was equipped with 249 spot Ku-band , 24 C-band and one Ka-band transponders and supplied telecommunication services from the position 50 ° West from North and Latin America and the North Atlantic. A total bandwidth of 450 MHz was available for the Ka band. He was on the basis of the satellite bus Boeing 702MP of Boeing built and had a design life of 15 years.
Web links
- Manufacturer website
- Operator website ( Memento from January 24, 2016 in the Internet Archive )
Individual evidence
- ↑ Stephen Clark: Stricken with fuel leak, Intelsat 29e seen drifting in geostationary orbit. In: Spaceflight Now. April 15, 2019, accessed April 15, 2019 .
- ↑ a b Ariane 5 brings Intelsat 29e into space. on: raumfahrer.net accessed on January 30, 2016.
- ↑ Thomas Weyrauch: Intelsat 29e after anomalies on the wrong track. In: raumfahrer.net. April 12, 2019, accessed April 12, 2019 .
- ↑ Twitter message from Thomas Sean Keslo, Celestrak, April 11, 2019.
- ↑ Eric Berger: New video of Intelsat 29e satellite reveals dramatic “anomaly”. In: Ars Technica. April 12, 2019, accessed April 12, 2019 .
- ↑ Intelsat Reports Intelsat 29e Satellite Failure. Intelsat, April 18, 2019, accessed April 19, 2019 .
- ↑ Stephen Clark: Investigators conclude external forces killed an Intelsat satellite in April. In: Spaceflight Now. July 30, 2019, accessed August 1, 2019 .
- ↑ arianespace.com: Dossier-de-presse-VA-228-final-GB.pdf , accessed on January 30, 2016.
- ↑ intelsat.com: 5533-IS-29e.pdf , accessed January 30, 2016.