Download the project manual in OpenDocument format from the source repository.
Documentation
Manuals, notes, and orbital references.
Start with the user manual, then move into repository notes or the underlying tracking references.
Documentation library
See some useful material.
Practical guides and technical references for configuring Gpredict, planning passes, and understanding satellite data.
Configuration, timekeeping, and radio-control notes maintained alongside the source.
CelesTrak’s SGP4 reference includes the original paper, revisions, source code, and test cases.
An accessible introduction to the orbital elements used in two-line element (TLE) data.
Support and development
Use the channel built for the question.
General support and project development share a community, but they use different queues.
Search the Libre Space forum or GitHub Discussions before starting a new topic. Direct email is not a support channel.
Use GitHub Issues for reproducible bugs and concrete feature requests. Include steps, expected behavior, actual behavior, and environment details. Do not use Issues for general support.
Browse the repository, read release history in NEWS, and review the GPL terms before redistributing changes.