China Jilin-1 Satellite

Full Specifications

Jilin-1 Satellite Constellation ISR System

The Jilin-1 satellite constellation is one of China’s fastest growing commercial Earth observation networks, designed to provide high-resolution imagery, real-time video, and rapid revisit intelligence from space. Developed to support both civilian and defense applications, the system enables persistent monitoring of global activity from Low Earth Orbit.

Unlike traditional single reconnaissance satellites, Jilin-1 operates as a constellation of dozens of small satellites working together. This approach allows China to capture frequent imagery of strategic locations, maritime routes, and military infrastructure. With hundreds of satellites planned, the constellation aims to deliver near-continuous global coverage.

The satellites can capture detailed optical imagery and video of ground activities, which is useful for intelligence analysis, disaster monitoring, environmental tracking, and maritime surveillance. Analysts note that the system’s growing coverage provides China with a powerful ISR capability that can complement traditional military reconnaissance assets.

Manufacturer

The constellation is developed and operated by Chang Guang Satellite Technology Co., Ltd., a Chinese aerospace company based in Jilin Province. The company is supported by the Chinese Academy of Sciences and partners with national space organizations and commercial launch providers.

Speed and Range

Jilin-1 satellites operate in Low Earth Orbit at roughly 500–650 km altitude. Traveling at orbital speeds of about 7.5 km per second (around 27,000 km/h), each satellite circles Earth approximately every 90 minutes. The constellation design enables frequent revisit times, in some cases several passes per day over the same location.

Cost / Price

Exact pricing remains undisclosed, but industry estimates suggest USD 5–15 million per satellite, depending on sensor type and mission configuration. The lower cost compared to traditional reconnaissance satellites allows rapid expansion of the constellation.

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