Data and algorithms
ISO 8601
ISO 8601
The international date-time format, e.g. 2026-10-30T18:21:00Z.
The trailing Z means UTC.
Related terms
- SGP4 — A simplified perturbation model that propagates a TLE.
- Launch Library 2 — The open launch database maintained by The Space Devs.
- Celestrak — A public source of TLE orbital data.
- astronomy-engine — An MIT-licensed astronomy library that runs in your browser.