AWS Ground Station
A service providing pay-per-use satellite communication, enabling cloud-native processing of satellite data downlink and command uplink
Overview
AWS Ground Station provides managed satellite ground station antenna access on a pay-per-use basis from locations worldwide, offering satellite communication (downlink and uplink) as a managed service. What traditionally required millions of dollars in upfront investment for ground station infrastructure can now be used at per-minute rates, dramatically reducing satellite data acquisition costs. Received data is streamed in real-time to EC2 instances and can be connected to S3 storage or immediate image processing and analysis pipelines.
Satellite Contact Scheduling and Ground Station Network
Ground Station has ground stations deployed in over 12 Regions worldwide, automatically calculating the timing (passes) when low Earth orbit (LEO) satellites traverse the ground station's visibility window to schedule contacts. Contact reservations are made via API or console, displaying available passes based on the satellite's orbital elements (TLE). A single contact typically lasts 5-15 minutes, during which the antenna tracks the satellite while transmitting and receiving data. Combining multiple ground stations increases the number of contacts per day, improving data acquisition frequency. Mission profile settings define the frequency band (S-band, X-band), bandwidth, modulation scheme, and data flow (destination for received data).
Data Flow and Real-Time Processing Pipelines
Data received from satellites is streamed in real-time to EC2 instances according to Ground Station's data flow configuration. EC2 instances are placed in a VPC in the same Region as the ground station for low-latency data reception. A common processing pipeline demodulates and decodes raw baseband data into image data and stores it in S3. For Earth observation satellites, optical imagery and SAR (Synthetic Aperture Radar) data is analyzed with SageMaker to extract information such as crop conditions, forest change detection, and ocean oil spill detection. Weather satellite data can be processed immediately via Kinesis Data Streams and used as input to weather forecast models. For command uplink, control commands (attitude control, imaging instructions, software updates) are sent to satellites via ground stations.
Cost Structure and Satellite Constellation Operations
Ground Station pricing is determined by contact time (per minute) and antenna type (diameter). Compared to annual costs of millions of dollars for building and operating your own ground stations, the pay-per-use model of using only when needed dramatically lowers the barrier to entry, particularly for small satellites and startups. For satellite constellation operations (tens to hundreds of satellites), orchestration that auto-schedules passes for each satellite and optimizes ground station utilization is critical. Step Functions can manage contact schedules per satellite, building workflows that wait for received data processing completion before generating commands for the next satellite. Combined with AWS edge locations, architectures that immediately process received data in the nearest Region and deliver to globally distributed customers in real-time are also achievable.