AngoSat-1
| AngoSat-1 | |
|---|---|
| Start date | December 26, 2017, 19:00 UTC |
| Launcher | Zenit-3F SLB80.5 / Fregat |
| Launch site | Baikonur 45/1 |
| COSPAR-ID : | 2017-086A |
| Takeoff mass | 1647 kg |
| Manufacturer | RKK Energia |
| Satellite bus | USP |
| lifespan | planned 15 years |
| Stabilization | Three-axis stabilization |
| operator | Angolan Ministry of Telecommunications and Information Technology |
| Playback information | |
| Transponder | 6 Ku-band and 16 C-band transponders |
| position | |
| First position | 14.5 ° East |
| drive | 8 SPT-70 xenon ion thrusters |
| List of geostationary satellites | |
AngoSat-1 is a broken commercial communications satellite owned by the Angolan Ministry of Telecommunications and Information Technology. AngoSat-2 is to be built as a replacement .
begin
The satellite was launched into geostationary orbit from the Baikonur rocket launch site on December 26, 2017 at 19:00 UTC with a Zenit- 3F launcher . After the satellite was launched, contact with him was lost for two days. However, it did not reach its planned geostationary orbital position. Initially, it had reached the height required for geostationary satellites, then drifted to the west and, when it reached the planned position of 14.5 ° East, would have had to slow down and fall "downwards", which however did not happen. Its position shifts 3.2 ° to the west every day, which means that it escaped the radio range of the ground stations. At 3.2 ° per day, his position orbits the earth in 112.5 days. In April 2018 he re-entered the radio area of the ground station. An attempt should be made again to lower it to geostationary orbit. However, the contact was unsuccessful and the satellite was abandoned.
Technology and organization
The three-axis stabilized satellite with 6 Ku-band - and 16 C-band - transponders fitted and should the position of 14.5 degrees East Angola and parts of Africa with telecommunication services, television, radio and Internet supply.
It was built on the basis of the USP satellite bus from RKK Energia and the communications payload was supplied by Airbus Defense and Space . It has a planned lifespan of 15 years.
The $ 280 million (EUR 236 million) project was financed with a loan from Russian state banks. It comprised the satellite, its launch and the infrastructure on the ground. Around 50 Angolan engineers were trained as part of the program to monitor the functionality of the satellite in a control station near the Angolan capital Luanda. In addition to Russia, Brazil, China and Japan also took part in the training.
Web links
- RKK Energia: manufacturer website
- Infrasat: operator website
Individual evidence
- ↑ russianspaceweb.com: The Angosat-1 communications satellite , accessed December 30, 2017
- ↑ a b Russia gives up on Silent AngoSat-1, Promises Replacement Satellite to Angola . In: spaceflight101.com . April 27, 2018. Retrieved April 27, 2018.
- ↑ a b nasaspaceflight.com: Zenit rocket lofts AngoSat-1 - NASASpaceFlight.com , accessed December 30, 2017
- ↑ a b boj / dpa: Missing Angosat-1: Russia establishes contact with Angolan satellite . In: Spiegel Online , SpiegelNet GmbH, December 29, 2017. Accessed March 1, 2018.
- ↑ Patrick Blau: No Signs of Life from Russian-built AngoSat, Troubleshooting to Resume in April - Zenit - AngoSat-1 . In: spaceflight101.com . January 15, 2018. Retrieved March 1, 2018.
- ↑ AngoSat 1 - Gunter's Space Page. space.skyrocket.de, accessed on January 7, 2018 (English).