Celestrak
celestrak.orgRank Trend
Ranking history over time.
About Celestrak
CelesTrak is a non-profit organization dedicated to providing free access to data and resources for the space community. The site offers tools and information to enhance understanding of the orbital environment and promote safe usage of space data.
Access free space data and resources for understanding orbital environments.
What You Can Do
- Explore current orbital data sets
- Utilize visualization tools for space data
- Request special data and documentation
- Follow updates on social media
- Contribute to the non-profit mission
Frequently Asked Questions
What is CelesTrak's mission?
CelesTrak aims to make space data and resources freely available to enhance understanding of the orbital environment.
How can I support CelesTrak?
You can support CelesTrak by making a small monthly donation to help fund their mission.
What types of data does CelesTrak provide?
CelesTrak provides various data sets including NORAD GP Element Sets and supplemental data for software developers.
How can I stay updated on CelesTrak's activities?
You can follow T.S. Kelso and CelesTrak on Bluesky for the latest updates and tutorials.
What are Two-Line Element Sets (TLEs)?
TLEs are a format for encoding orbital elements of satellites, which CelesTrak provides for public access.