Infrastructure Design

Satellite Data Processing with AWS Ground Station - From Downlink to Analysis Pipeline

Learn about satellite communication scheduling with Ground Station, data downlink, and real-time processing on EC2.

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Ground Station Overview

Ground Station is a service that provides managed satellite communication downlink and uplink from over 12 locations worldwide. Traditionally, acquiring satellite data required building and operating ground stations costing millions of dollars, but Ground Station lets you use AWS ground station antennas on a pay-per-use basis. You schedule satellite contacts from locations around the world and process data in real time on EC2.

Contacts and Data Processing

A contact is a communication session scheduled during the time window when a satellite passes over a ground station. After registering the satellite's orbital information (TLE), available contact windows are displayed and you can reserve a schedule. Downlink data is streamed directly to an EC2 instance within your VPC for real-time processing. A typical use case is receiving image data from an Earth observation satellite, running image processing on EC2, and storing the results in S3.

Data Flow and Mission Profiles

A mission profile defines the data flow during a contact. The basic configuration streams downlink data from the antenna to an EC2 instance for real-time demodulation and decoding. Data flow endpoint groups specify the receiving EC2 instance, and security groups allow the data flow ports. Direct delivery to S3 is also available, which is suitable for feeding large volumes of satellite image data into a processing pipeline. CloudWatch Events are emitted before and after contacts, so you can use Lambda to automatically trigger post-processing of received data (saving to S3, image analysis with SageMaker). For more details on Ground Station, you can also check related books on Amazon.

Ground Station Pricing

Ground Station is billed per contact minute. Pricing varies by antenna bandwidth (wideband/narrowband) and downlink/uplink type. Wideband downlink costs approximately $10 per minute, with a typical contact (usually 5-15 minutes) costing $50-$150. Compared to the cost of building and operating your own ground station (millions of dollars), this dramatically reduces the initial investment for satellite operations. Optimize costs by scheduling only the necessary passes (time windows when the satellite passes overhead). Leveraging multiple ground station locations to increase the number of daily contacts while shortening each contact duration is also an effective operational strategy.

Summary

Ground Station is a service that provides managed satellite communication downlink and uplink, eliminating the cost of building and operating ground stations. Define data flows with mission profiles and build satellite data utilization pipelines through real-time processing on EC2 or direct delivery to S3. Per-minute contact billing converts what was traditionally a multi-million-dollar ground station investment into pay-per-use pricing.

Related Services

AWS Ground StationA managed service that provides satellite ground station infrastructure as a serviceAmazon EC2A compute service that provides virtual servers in the cloudAmazon S3A scalable object storage service

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