Tianwen-2

Overview

Destination: Asteroid
Mission: Planetary Science

Asteroid Launch Complex 2 (LC-2) Xichang Satellite Launch Center, People's Republic of China

Tianwen-2 is a planned Chinese asteroid sample return and comet orbiter mission due for launch in May 2025. The spacecraft will visit the Near Earth asteroid 469219 Kamoʻoalewa (2016 HO3), collecting samples from its surface using both touch-and-go and anchor-and-drill approaches. It will return the samples back to Earth around 2.5 years after launch, with the main spacecraft proceeding to visit the main-belt comet 311P/PANSTARRS in the mid-2030s.

Updates

Cosmic_Penguin • May 28, 2025, 6:40 p.m.

Launch success.


Cosmic_Penguin • May 28, 2025, 5:34 p.m.

Liftoff.


Cosmic_Penguin • May 22, 2025, 6:16 a.m.

Added launch window.


Cosmic_Penguin • May 19, 2025, 8:39 a.m.

NET May 28 UTC. (Launch pad is per https://mp.weixin.qq.com/s/f8ojaDIp7LsRK8hPfpfLwg)


Cosmic_Penguin • Oct. 3, 2023, 10:02 a.m.

Added launch.


Long March 3B/E

Family:
Configuration: B/E

The Long March 3B / E (G2) (CZ-3B / E) is one of the most successful medium-range launchers and the strongest variant of the CZ-3 series. It was specially developed for the transport of heavy communications satellites into a geostationary transfer orbit. The additional designation "E" stands for a higher payload fairing, stretched boosters and extended fuel tanks at the first stage, over the CZ-3B.

Specifications
  • Stages
    3
  • Length
    56.3 m
  • Diameter
    3.35 m
  • Fairing Diameter
    4.2 m
  • Launch Mass
    456.0 T
  • Thrust
    5924.0 kN
Family
  • Name
    Long March 3B/E
  • Family
  • Variant
    B/E
  • Alias
    CZ-3B/E
  • Full Name
    Long March 3B/E
Payload Capacity
  • Launch Cost
    $70000000
  • Low Earth Orbit
    12000.0 kg
  • Geostationary Transfer Orbit
    5500.0 kg
  • 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: 599 Failures: 16 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
Arstechnica

There were not one, but two asteroid encounters this weekend

The Torifune asteroid turns out to be shaped like a peanut.

SpaceNews

Tianwen-2 arrives at asteroid Kamo’oalewa, first image revealed

HELSINKI — China’s Tianwen-2 sample return spacecraft has arrived at Kamoʻoalewa, revealing the near Earth asteroid to be a small, elongated rocky body. Tianwen-2 launched May 29, 2025, and traveled […] The post Tianwen-2 arrives at aster…

SpaceNews

Tianwen-2 makes series of burns on approach to asteroid, according to radio tracking

China’s Tianwen-2 spacecraft has carried out a series of small propulsive maneuvers following a main burn June 7, setting up an asteroid rendezvous in July. The post Tianwen-2 makes series of burns on approach to asteroid, according to ra…

NASASpaceflight

China successfully debuts tallest rocket, LandSpace prepares for second landing attempt

China kicked off a busy month with three missions for a single internet constellation in… The post China successfully debuts tallest rocket, LandSpace prepares for second landing attempt appeared first on NASASpaceFlight.com.

SpaceNews

China’s Tianwen-2 probe operating normally on approach to asteroid

China’s Tianwen-2 spacecraft is operating normally on its way to a near-Earth asteroid ahead of sampling later this year, according to a rare official update. The post China’s Tianwen-2 probe operating normally on approach to asteroid app…

Xichang Satellite Launch Center, People's Republic of China

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