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Yaogan Reconnaissance Satellite

Yaogan Reconnaissance Satellite
  • Imaging / Detection Capability Optical, SAR, and ELINT-based reconnaissance
  • Frequency Band / Communication X-Band / Ka-Band secure links
  • Sensor / Antenna Type Optical telescope, SAR antenna, ELINT arrays
  • Coverage / Target Tracking Capacity Regional to global via constellation

Full Specifications

1. General Information

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)

2. Performance & Capabilities

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

3. Payload & Sensor Specifications

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

4. Guidance, Control & Communication

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

5. Launch & Deployment

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

6. Operational & Command Use

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

7. Future & Experimental Use

Planned Upgrades Improved SAR, AI onboard processing
Replacement / Next Gen Advanced Yaogan Variants
Experimental Variants Counter-space awareness payloads
International Collaboration None disclosed

Our Rating

The overall rating is based on review by our experts

8
  • Accuracy 9 / 10
  • Reliability 8 / 10
  • Reliability & Maintenance 9 / 10
  • Range & Endurance 6 / 10

PROS

  1. Persistent ISR through large constellation
  2. Multi-sensor architecture (optical, SAR, ELINT)
  3. All-weather, day/night surveillance capability
  4. Supports long-range missile targeting
  5. Enhances maritime domain awareness

CONS

  1. Individual satellite capability likely below top-tier U.S. systems
  2. High launch and sustainment costs
  3. Vulnerable to counter-space operations
  4. Limited transparency on performance
  5. Dependence on ground station network

Yaogan Reconnaissance Satellites (China ISR Network)

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.

Capabilities and Role

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.

Operational Use

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.

FAQs

What is the purpose of China’s Yaogan satellites?

They provide military ISR, including imaging, radar surveillance, and electronic intelligence.

Are Yaogan satellites military or civilian?

Publicly civilian, but widely assessed as military-operated by the PLA.

Can Yaogan satellites track U.S. naval ships?

Yes, SAR and ELINT variants are believed capable of maritime tracking.

How many Yaogan satellites are in orbit?

Open sources estimate over 40 launched across multiple variants.

How do Yaogan satellites compare to U.S. systems?

They are less advanced individually but compensate through constellation size and redundancy.

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