A Long March-11 rocket carrying two satellites for multispectral imaging and two test satellites blasts off from the Jiuquan Satellite Launch Center in northwest China, Jan. 21, 2019. China launched two satellites for multispectral imaging on a Long March-11 rocket from the Jiuquan Satellite Launch Center in northwest China at 1:42 pm on Monday. The satellites have successfully entered their preset orbit, according to the center. (Xinhua/Wang Jiangbo)

China launched two satellites for multispectral imaging on a Long March-11 rocket from the Jiuquan Satellite Launch Center in northwest China at 1:42 pm on Monday.

The satellites have successfully entered their preset orbit, according to the center.

The two satellites, part of the Jilin-1 satellite family, were independently developed by Chang Guang Satellite Technology Co. Ltd.

Loaded with a multi-spectral imager and an infrared camera, they will form a network with the 10 previously launched Jilin-1 satellites, providing remote sensing data and services for forestry, shipping and resource and environmental monitoring.

The launch also carried two test satellites. Lingque-1A is the first verifying satellite for the Lingque Constellation planned by Beijing ZeroG Technology Co., Ltd. It can take photos of Earth, conduct high-speed data transmission and inter-satellite communication.

Xiaoxiang-1 03 is a technology test satellite developed by Spacety Co., Ltd. based in Changsha, Hunan Province. It will be used to verify radio communication and small remote sensing experiments.

It is the 299th mission of the Long March carrier rocket series. (Xinhua)