Orbit class
Sun-Synchronous Orbit (SSO)
A special LEO with 96–102° inclination that keeps the orbital plane aligned with the Sun. Earth observation favorite.
5,581 cataloged objects in this orbit class.
Sun-Synchronous Orbit is a polar-ish LEO designed so the orbital plane precesses to keep pace with the Sun. The satellite passes over any given location at the same local solar time on every orbit — extremely useful for consistent lighting on Earth imagery. Landsat, Sentinel, and most major Earth observation missions use SSO at ~97–99° inclination.
Examples
- STARLINK-35177
- FENGYUN 1C DEB
- FENGYUN 1C DEB
- PRSS-1
- IRIDE-MS2-HEO-11
- 2025-155P
- FENGYUN 1C DEB
- STARLINK-36605
- STARLINK-37871
- FENGYUN 1C DEB
- STARLINK-37194
- ICEYE-X64
- FENGYUN 1C DEB
- FENGYUN 1C DEB
- STARLINK-36307
- STARLINK-4328
- STARLINK-36708
- FENGYUN 1C DEB
- ICEYE-X51
- IRIDE-MS1-EAGLET 2-3
- FENGYUN 1C DEB
- COSMOS 2618
- FENGYUN 1C DEB
- CORVUS BC4