Engineering:Optus D3
| Mission type | Communication |
|---|---|
| Operator | Optus |
| COSPAR ID | 2009-044B |
| SATCAT no. | 35756 |
| Website | http://www.optus.com.au/about/network/satellite/fleet/b3 |
| Mission duration | 15 years |
| Spacecraft properties | |
| Bus | Star-2.4 |
| Manufacturer | Orbital Sciences |
| Launch mass | 2,401 kilograms (5,293 lb) |
| Start of mission | |
| Launch date | 21 August 2009, 22:09 UTC |
| Rocket | Ariane 5ECA |
| Launch site | Kourou ELA-3 |
| Contractor | Arianespace |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 156° east |
| Perigee altitude | 35,778 kilometres (22,231 mi)[1] |
| Apogee altitude | 35,808 kilometres (22,250 mi)[1] |
| Inclination | 0.05 degrees[1] |
| Period | 1436.12 minutes[1] |
| Epoch | 23 January 2015, 19:12:10 UTC[1] |
Optus D3 is an Australian geostationary communications satellite, which is operated by Optus and provides communications services to Australasia. D3 was the third Optus-D satellite to be launched. It is a 2,401-kilogram (5,293 lb) satellite, which was constructed by Orbital Sciences Corporation based on the Star-2.4 satellite bus, with the same configuration as the earlier Optus D2 satellite.[2]
It was launched, along with the Japanese JCSAT-12 satellite, by Arianespace. An Ariane 5ECA rocket was used for the launch, which occurred from ELA-3 at the Guiana Space Centre in Kourou, French Guiana. The launch took place at 22:09 GMT on 21 August 2009, at the start of a 60-minute launch window.[3]
Optus D3 separated from its carrier rocket into a geosynchronous transfer orbit, from which it raised itself to geostationary orbit using an IHI -500-N apogee motor. It has a design life of fifteen years, and carries thirty two J band transponders (US IEEE Ku band).[2]
Optus D3 will be visited by Mission Extension Vehicle-1, which will dock to Optus D3 and extend the mission of the satellite by 5-7 years.
See also
- 2009 in spaceflight
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "OPTUS D3 Satellite details 2009-044B NORAD 35756". N2YO. 23 January 2015. http://www.n2yo.com/satellite/?s=35756.
- ↑ 2.0 2.1 Krebs, Gunter. "Optus D2, D3". Gunter's Space Page. http://space.skyrocket.de/doc_sdat/optus-d2.htm.
- ↑ "Preparations continue with the JCSAT-12 and Optus D3 payloads for Ariane 5's next launch". Mission Update. Arianespace. 2009-08-12. http://www.arianespace.com/news-mission-update/2009/621.asp.
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