What Is Spacebook?
Spacebook is a free, internet-based platform that provides Cesium-powered visualizations of objects in Earth’s orbit and a web portal for downloading a broad range of space data.
Visualize space objects
Use the intuitive Cesium visualization features of Spacebook to observe the trajectories of thousands of space objects at once. Refine your view with individual and group object display settings, and — with a free account — save those views to share with others.
Download space data
Spacebook’s data downloads include TLEs, space weather, Earth orientation parameters, and more. Spacebook is the only portal of its kind to provide advanced data such as XP-TLEs and synthetic covariance. All this data is free to obtain, without an account. Configure download options through the user interface or automate the entire process through Spacebook’s APIs.
Take a Tour
Spacebook is easy to figure out, but a good tutorial can make anything easier. And sometimes a guided tour enables you to discover features that you might not find on your own. So, take our advice and watch this walkthrough video to learn the basic workflows of Spacebook in just a few minutes.
What you’ll learn
What kind of data is available to download
How to select downloads from the user interface
How to find API information to automate downloads
How to use the Explorer interface to visualize space objects
How to use the catalog windows to define and visualize object groups
The advantages of creating a Spacebook user account
Duration: 9:04 | Last updated: April 2025