Satellite
XMM-Newton
ESA’s X-ray observatory, launched in 1999 and still the most sensitive of its kind. Its 48-hour orbit keeps it far from Earth for most of each revolution.
- Catalogue name
- XMM-NEWTON
- NORAD ID
- 25989
- Owner
- European Space Agency
- Launched
- December 10, 1999
- Altitude (perigee – apogee)
- 29,491 – 91,647 km
- Orbital period
- 2,872.7 min
- Inclination
- 63.8°