![](http://www.ecns.cn/hd/2023/09/11/2252df3af7a54518a412a93696394026.jpg)
A modified version of the Long March-6 carrier rocket carrying a Yaogan-40 satellite blasts off from the Taiyuan Satellite Launch Center in north China's Shanxi Province, Sept. 10, 2023. (Photo: China News Service/Feng Yang)
The satellite will be used for electromagnetic environment detection and related technical tests. It was the 487th mission undertaken by the Long March rocket series.
![](http://www.ecns.cn/hd/2023/09/11/229877be025049c1aeaca947b7ed9356.jpg)
A modified version of the Long March-6 carrier rocket carrying a Yaogan-40 satellite blasts off from the Taiyuan Satellite Launch Center in north China's Shanxi Province, Sept. 10, 2023. (Photo: China News Service/Feng Yang)
![](http://www.ecns.cn/hd/2023/09/11/acacc2f4f132486f8a1bd5afd693205b.jpg)
A modified version of the Long March-6 carrier rocket carrying a Yaogan-40 satellite blasts off from the Taiyuan Satellite Launch Center in north China's Shanxi Province, Sept. 10, 2023. (Photo: China News Service/Feng Yang)