Long March 3B/E — mission imagery
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Tianwen-2

Long March 3B/EChina Aerospace Science and Technology CorporationLaunch Complex 2 (LC-2)
Wednesday, May 28, 2025 · 05:31 PM UTCAdd to Calendar

This mission is complete.

Vehicle

Long March 3B/E

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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 o...

Height56.3 m
LEO Payload12,000 kg
Launches612
Successes589

Provider

China Aerospace Science and Technology Corporation

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CHN • Founded 1999

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 manufactu...

Mission Brief

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.

PayloadTianwen-2
OrbitAsteroid
CustomerChina Aerospace Science and Technology Corporation
Stages3
PadLaunch Complex 2 (LC-2), Xichang Satellite Launch Center, People's Republic of China

Mission Timeline

14 / 14100%

Ground vector

Launch site

Site locked

Launch Complex 2 (LC-2)

Xichang Satellite Launch Center, People's Republic of China

Global range
SITE LOCK
Latitude
28.246°N
Longitude
102.027°E

Range Weather

Launch commit criteria

Clear
Watch
TrackingNo active constraints
Weather Rules

Tracking no weather issues at this time.

Primary concern
No weather issues
Rule count
0
Temperature
Not reported
Surface wind
Not reported
Window

05:22 PM UTC - 05:44 PM UTC

Schedule History

No delays or schedule changes recorded.