CHINA AEROSPACE SCIENCE AND TECHNOLOGY CORPORATION

Long March 4B | Yaogan 12 & Tianxun-1

SUCCESS Long March 4B →
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Nov 9, 2011 at 03:21 UTC
Sun-Synchronous Orbit Earth Science Taiyuan Satellite Launch Center, People's Republic of China 98% success
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Live Orbit
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Mission Control3D trajectory · Live telemetry · AI narrator · Booster tracking
PADLaunch Complex 9
SITETaiyuan Satellite Launch Center, People's Republic of China →
ORBITSun-Synchronous Orbit
TYPEEarth Science

Yaogan 12 is a Chinese Earth observation satellite, likely also used for military reconnaissance. Tianxun-1 is a Chinese microsatellite built by the Nanjing University of Aeronautics and Astronautics. Earth observation with maximum resolution of 30 metres.

MISSION
Yaogan 12 & Tianxun-1
MISSION TYPE
Earth Science
TARGET ORBIT
Sun-Synchronous Orbit
COUNTRY
CHN
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: d2c4b38f-97cf-4151-baa2-c053317b03ba
Reported date: Nov 9, 2011 at 03:21 UTC
Last synced: 6 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
China Aerospace Science and Technology Corporation
VARIANT
B
FLIGHTS
56
SUCCESSES
55
SUCCESS RATE
98.2%

The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits.

When is the Long March 4B | Yaogan 12 & Tianxun-1 launch?
The Long March 4B | Yaogan 12 & Tianxun-1 is scheduled for Wednesday, November 9, 2011 at 3:21 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Yaogan 12 & Tianxun-1?
The Long March 4B | Yaogan 12 & Tianxun-1 mission uses the Long March 4B rocket, manufactured by China Aerospace Science and Technology Corporation. The Long March 4B has flown 56 times with a 98.2% success rate.
Where is the Long March 4B | Yaogan 12 & Tianxun-1 launching from?
The launch takes place from Launch Complex 9 at Taiyuan Satellite Launch Center, People's Republic of China.
What orbit is Yaogan 12 & Tianxun-1 going to?
The Yaogan 12 & Tianxun-1 mission is targeting Sun-Synchronous Orbit.
Who is launching Yaogan 12 & Tianxun-1?
The Long March 4B | Yaogan 12 & Tianxun-1 is operated by China Aerospace Science and Technology Corporation.
Can I watch the Long March 4B | Yaogan 12 & Tianxun-1 launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Mar 29, 2026 00:02 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 00:02 UTC
Launch date set: Nov 9, 2011 at 03:21 UTC
NET (No Earlier Than) confirmed by China Aerospace Science and Technology Corporation
Mar 29, 2026 00:02 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 6 minutes ago
●Launch Library 26 minutes ago
Launch ID: d2c4b38f-97cf-4151-baa2-c053317b03ba
●Open-Meteo Weather3 weeks ago
Pad weather at 38.86, 111.59

Mission Profile

Yaogan 12 & Tianxun-1 was a Long March 4B mission operated by China Aerospace Science and Technology Corporation that lifted off from Launch Complex 9, Taiyuan Satellite Launch Center, People's Republic of China on November 9, 2011. The flight carried its payload on a earth science mission to Sun-Synchronous Orbit. The launch was a success.