Launch success
Update ↗
Daqi-1 (AEMS)
Long March 4C
Historical mission record
This page records Long March 4C | Daqi-1 (AEMS) and its reported outcome: Launch Successful. The date above is a historical record.
Source record updated . This is a source update, not a confirmed launch time.
Check the source: Launch Library ↗
What changed?
Added launch per NOTAMs - payload and launch vehicle identities very uncertain.
Update ↗Status reported by the mission data provider.
Mission
China’s first satellite dedicated to comprehensive monitoring of the atmospheric environment, named Daqi-1, also known as Atmospheric Environment Monitoring Satellite (AEMS) and developed by the Shanghai Academy of Spaceflight Technology (SAST) in Shanghai, is designed to operate in sun-synchronous orbit. Daqi-1 can monitor fine particle pollution like PM2.5, pollutant gases including nitrogen dioxide, sulfur dioxide and ozone, as well as carbon dioxide concentration. It combines both passive and active sensing, which can realize comprehensive monitoring of the atmospheric environment in a better way, according to a chief designer with SAST. The detection accuracy of fine particles and carbon dioxide column concentration by Daqi-1 has reached the international advanced level, the chief designer said. The atmospheric detection lidar deployed on the satellite is also the world's first that is capable of detecting both atmospheric aerosols and carbon dioxide.
- Launch vehicle
- Long March 4C
- Mission type
- Earth Science
- Destination orbit
- Sun-Synchronous Orbit
- Launch pad
- Launch Complex 9
- Provider
- China Aerospace Science and Technology Corporation
The vehicle
Published configuration and flight history.

Long March 4C
The Long March 4C, also known as the Chang Zheng 4C, CZ-4C and LM-4C, previously designated Long March 4B-II, is a Chinese orbital carrier rocket. It is launched from the Jiuquan, Taiyuan Satellite Launch Centre and Xichangs, and consists of 3 stages. Long March 4C vehicles have been used to launch the Yaogan-1, Yaogan-3 SAR satellites and the Fengyun-3A polar orbiting meteorological satellite. On December 15, 2009 a Long March 4C was used to launch Yaogan 8.
- Stages
- 3
- Recorded launches
- 59
- First flight
- 2006-04-26
Recorded timing
This is a mission record, not an upcoming calendar appointment.
Target ·
The target marker shows its position within the published window. The schedule may change before launch.
Launch site & orbit
Taiyuan Satellite Launch Center, People's Republic of China
Launch site & orbit
Explore the launch pad, then pull back to see the shape of the destination orbit.
Understand this orbit
Coverage & sources
Links supplied by the mission data provider.
Coverage and times may change.
Mission coverage
No viewing link has been published yet.
Further reading
Launch Library ↗Explore on iPhone
Browse mission details and discover upcoming launches in Spacian.
Open mission in Spacian ↗