Constellations
Satellite constellations
8 constellations tracked in this selection, ranked by active satellites. The 8 shown on this page account for 199 active satellites. Membership is derived from curated name patterns and CelesTrak groups — see the methodology.
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| # | Constellation | Operator | Service | Orbit | Active | On orbit | Total | 365 d | 30 d | Activity derived | Median perigee | First launch | Last launch |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | BeiDouCN | China Satellite Navigation Office | Navigation | MIXED | 49 | 59 | 59 | 0 | 0 | 0.0 | 21,521 km | 24 May 2003 | 19 Sept 2024 |
| 2 | CentiSpaceCN | China Aerospace Science and Technology Corporation | Navigation | LEO | 33 | 33 | 33 | 18 | 0 | 5.5 | 830 km | 29 Sept 2018 | 17 Jun 2026 |
| 3 | GPS (NAVSTAR)US | United States Space Force | Navigation | MEO | 33 | 80 | 80 | 2 | 0 | 0.6 | 19,956 km | 22 Feb 1978 | 21 Apr 2026 |
| 4 | Galileo | European Union Agency for the Space Programme (EUSPA) | Navigation | MEO | 30 | 36 | 37 | 2 | 0 | 0.7 | 23,211 km | 18 Oct 1989 | 17 Dec 2025 |
| 5 | GLONASSRU | Roscosmos / Russian Space Systems (GLONASS) | Navigation | MEO | 24 | 29 | 29 | 2 | 1 | 5.0 | 19,100 km | 26 Oct 2007 | 24 Aug 2026 |
| 6 | SBAS / augmentation | — | Navigation | GEO | 21 | 21 | 21 | 0 | 0 | 0.0 | 35,776 km | 08 Nov 2005 | 02 Feb 2025 |
| 7 | NavIC (IRNSS)IN | ISRO | Navigation | GEO | 8 | 10 | 11 | 0 | 0 | 0.0 | 35,702 km | 01 Jul 2013 | 29 Jan 2025 |
| 8 | QZSS (Michibiki)JP | Cabinet Office of Japan (QZSS) | Navigation | HEO | 1 | 2 | 2 | 1 | 0 | 10.0 | 35,468 km | 11 Sept 2010 | 10 Aug 2026 |
8 results