Xuntian Telescope

Overview

Destination: Low Earth Orbit
Mission: Astrophysics

Low Earth Orbit 101 Wenchang Space Launch Site, People's Republic of China

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.

Updates

Cosmic_Penguin • Dec. 16, 2025, 7:09 p.m.

Added launch.


Long March 5B

Family:
Configuration: B

The configuration of the CZ-5B variant consists of the Long March 5 core stage with its four strapped-on liquid-fueled boosters, but the usual second stage will be absent; in place of the second stage would be heavier low earth orbit payloads.

Specifications
  • Stages
    1
  • Length
    53.66 m
  • Diameter
    5.0 m
  • Fairing Diameter
    5.0 m
  • Launch Mass
    837.0 T
  • Thrust
    10565.0 kN
Family
  • Name
    Long March 5B
  • Family
  • Variant
    B
  • Alias
  • Full Name
    Long March 5B
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
    25000.0 kg
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity

China Aerospace Science and Technology Corporation

China Aerospace Science and Technology Corporation

(CASC)

Chairman & President: Lei Fanpei Founded: 1999 Successes: 579 Failures: 15 Pending: 9

Agency Type:

The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.

INFO WIKI

Wenchang Space Launch Site, People's Republic of China

101


Long March 12B
Success
2 days, 2 hours ago
Demo Flight (SpaceSail Polar Group #10)
Long March 12 series Pad - Jiuquan Satellite Launch Center, People's Republic of China

First test launch of CASC/CACL’s Long March 12B rocket; carried a batch of 2 operational Low Earth Orbit communication satellites with Ku, Q and V ba…


Long March 2D
Success
3 days, 17 hours ago
4 x SatNet test satellites
Launch Complex 3 (LC-3/LA-1) - Xichang Satellite Launch Center, People's Republic of China

Officially described as "Satellite-Internet Technology Demonstration Satellites". Probably 4 test satellites for the Chinese state-owned LEO commu…


Falcon 9
Success
3 days, 20 hours ago
Starlink Group 17-41
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Atlas V 551
Success
4 days, 11 hours ago
Amazon Leo (LA-07)
Space Launch Complex 41 - Cape Canaveral SFS, FL, USA

Amazon Leo, formerly known as Project Kuiper, is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, thi…


Falcon 9
Success
4 days, 22 hours ago
Starlink Group 10-53
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 7A
Success
1 week ago
TJSW-24
201 - Wenchang Space Launch Site, People's Republic of China

Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.


Falcon 9
Success
1 week ago
Starlink Group 17-37
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
1 week, 1 day ago
Starlink Group 10-47
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2F/G
Success
1 week, 2 days ago
Shenzhou 23
Launch Area 91 (SLS-1 / 921) - Jiuquan Satellite Launch Center, People's Republic of China

Shenzhou 23 will be the 23rd flight of the Shenzhou program.


Starship
Success
1 week, 4 days ago
Flight 12
Orbital Launch Pad 2 - SpaceX Starbase, TX, USA

12th test flight of the two-stage Starship launch vehicle. Maiden Flight of Starship V3. The flight test’s primary goal will be to demonstrate eac…