

| System Name | Yaogan Reconnaissance Satellite |
| Manufacturer | China Aerospace Science and Technology Corporation (CASC) |
| Country of Origin | China |
| Type / Role | Military Reconnaissance / ISR Satellite |
| In Service | Yes |
| Year Introduced | 2006 |
| Unit Cost | USD 150–300 Million (Estimated) |
| Orbit Type | Low Earth Orbit (LEO) |
| Operational Altitude | 500–1,200 km (estimated) |
| Operational Inclination | Sun-Synchronous / Inclined |
| Imaging / Sensor Type | Optical / SAR / ELINT |
| Resolution / Accuracy | Sub-meter (optical, estimated) |
| Revisit Time / Coverage | Hours to days (constellation-based) |
| Mission Duration | 5–8 years |
| Primary Sensor | Optical Imager or SAR Payload |
| Secondary Sensor | ELINT / Signals Intelligence |
| Data Transmission | Encrypted Military SATCOM |
| Imaging Capability | Day/Night, All-Weather (SAR) |
| Payload Weight | 1,000–2,000 kg (estimated) |
| Onboard Power | Solar Arrays, ~3–5 kW |
| Attitude Control System | Reaction Wheels + Thrusters |
| Orbit Control | Chemical Propulsion |
| Communication Link | X-Band / Ka-Band |
| Data Encryption | Military-Grade Encryption |
| Telemetry & Command System | Secure PLA Ground Network |
| Launch Vehicle | Long March 2C / 4B |
| Launch Site | Jiuquan, Taiyuan |
| Deployment Orbit | LEO / Sun-Synchronous |
| Launch Mass | 3,000–4,000 kg |
| Deployment Method | Direct Orbital Injection |
| Primary Operators | People’s Liberation Army |
| Global Coverage | Yes (via constellation) |
| Combat Proven | Operationally Active |
| Typical Missions | ISR, Maritime Tracking, ELINT |
| Notable Feature | Multi-Orbit ISR Network |
| Planned Upgrades | Improved SAR, AI onboard processing |
| Replacement / Next Gen | Advanced Yaogan Variants |
| Experimental Variants | Counter-space awareness payloads |
| International Collaboration | None disclosed |
The Chinese Yaogan reconnaissance satellite series is Beijing’s primary space‑based remote sensing and intelligence system. First launched in 2006 and still active, the Yaogan constellation supports a mix of optical imaging, synthetic‑aperture radar and electronic intelligence missions for the People’s Liberation Army and state agencies.
Built by the China Aerospace Science and Technology Corporation and partners such as the Shanghai Academy of Spaceflight Technology, the program spans many satellite variants. Yaogan platforms operate mostly in low Earth and sun‑synchronous orbits to gather detailed Earth observation data across the globe.
Yaogan Reconnaissance Satellite use a range of sensors. Optical imaging units collect high‑resolution visible and infrared data, while SAR payloads penetrate weather and darkness to produce radar imagery. Some variants also carry ELINT gear to detect and geolocate electronic emissions.
Yaogan satellites are launched aboard Long March rockets from sites like Jiuquan and Taiyuan. Individual satellites operate for years, often in constellations tailored to specific sensing roles.
Though official Chinese statements often emphasize civilian uses, defense observers link the series to intelligence, surveillance and reconnaissance tasks across East Asia and beyond. Constellation growth continues, with dozens of Yaogan assets in orbit.
They provide military ISR, including imaging, radar surveillance, and electronic intelligence.
Publicly civilian, but widely assessed as military-operated by the PLA.
Yes, SAR and ELINT variants are believed capable of maritime tracking.
Open sources estimate over 40 launched across multiple variants.
They are less advanced individually but compensate through constellation size and redundancy.
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