
Key highlights
AstroLink micro is a compact optical downlink terminal designed for microsatellite missions. It provides laser communication from LEO to optical ground stations with data rates of up to 10 Gbps over slant ranges of up to 1,000 km. The terminal features autonomous coarse and fine pointing for independent link acquisition, operates at a 1550 nm downlink wavelength with 850/888 nm beacon compatibility, integrates through a 10G Ethernet interface, and is designed for low SWaP spacecraft platforms.
Applications
AstroLink Micro is designed for LEO microsatellite missions requiring high-speed space-to-ground data transmission. Typical applications include Earth observation, remote sensing, hyperspectral and SAR data downlink, scientific missions, technology demonstrations, and commercial satellite constellations. The terminal is particularly suited for missions requiring autonomous optical link acquisition and efficient transfer of large data volumes.
Key features
- Up to 10 Gbps Optical Downlink for rapid transfer of high-volume mission data from LEO satellites.
- Autonomous Coarse & Fine Pointing enables independent optical link acquisition and tracking without imposing stringent pointing requirements on the host spacecraft.
- Compact Low-SWaP Design with dimensions of 217 × 126 × 236 mm, mass ≤5 kg, and average power consumption of 45 W during downlink.
- 1550 nm Laser Communication with 850/888 nm beacon compatibility for reliable acquisition and optical link establishment.
- Up to 1,000 km Slant Range supporting high-performance LEO-to-ground optical communication.
- CCSDS O3K Compliant Architecture enabling interoperability with compatible optical ground station networks.
- Standard Spacecraft Interfaces, including 10 Gigabit Ethernet for payload data and dual RS-422 TM/TC interfaces for straightforward spacecraft integration.
- Wide Field of Regard with ±110° azimuth and ±45° elevation coarse pointing, supporting flexible optical ground station access across satellite passes
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Last updated: 2026-08-07
AstroLink micro

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