X-ray Multi-Mirror Mission (XMM-Newton)
Located in an elliptical orbit around the Earth
- Launch date
- December 10, 1999
- Launched by
- Ariane 504
- Launch location
- Guiana Space Center, Kourou, French Guiana, South America
- Mission duration
- 11 years +
- Light observed
- X-ray
- Website
- XMM-Newton homepage