Low Earth orbit
Xuntian Telescope
Xuntian, formerly known as the Chinese Space Station Telescope (CSST), is a Chinese space telescope designed to perform high-resolution, large-area, multi-band imaging and slit-less spectroscopy surveys of the sky at ultraviolet to infrared wavelengths of 255 – 1000 nm.

China's CSST/Xuntian remains in pre-launch science and facility preparation. Official CAS/NAO pages do not publish a day-level launch date.
View in 3D map ↗Official mission site ↗The mission
Xuntian, formerly known as the Chinese Space Station Telescope (CSST), is a Chinese space telescope designed to perform high-resolution, large-area, multi-band imaging and slit-less spectroscopy surveys of the sky at ultraviolet to infrared wavelengths of 255 – 1000 nm. The survey camera is slated to cover approximately 17500 square degrees of the sky in various bands, reaching maximum magnitudes of about 26. Xuntian will carry a survey camera, a tera-hertz receiver, a multi-channel imager, an integral field spectrograph, and a cool planet imaging coronagraph. Xuntian will be launched to a Low Earth Orbit that will be co-orbiting with the Tiangong space station/Chinese Space Station, which will allow for periodic docking with the station for regular maintenance by astronauts.
The launch
- Launch
- 2027
- Launch location
- Wenchang Space Launch Site, People's Republic of China
- Launch vehicle
- Long March 5B
- Orbit
- Low Earth Orbit
Mission timeline
Follow the mission through its available trajectory data in the full 3D solar-system map.
- Now
Planned launch
2027 · Earth
Xuntian Telescope is targeted to launch 2027.
Open milestone source ↗Spacecraft
Xuntian Telescope
Gallery
0 images from Xuntian Telescope.
No mission imagery is available yet.

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