Satellite Catalog

CelesTrak satellite search, orbital elements, orbit classification and decay screens.

payments ON MAINNET (real money) · 7 live endpoints

EndpointPriceWhat it answers
GET /decay-risk$0.03Screen a CelesTrak group for low-perigee objects (default under 250 km). A heuristic flag, not a re-entry prediction.
GET /ground-track-period$0.02Ground-track westward shift per orbit and repeat-cycle estimate (orbits per days) from an orbital period in minutes.
GET /group-summary$0.03Object count, altitude and inclination ranges and orbit-class mix for a CelesTrak group (stations, starlink, gps-ops...).
GET /orbit-class$0.02Classify an orbit as LEO, MEO, GEO, HEO or beyond-GEO from altitude, with SSO, GTO and Molniya hints and a period check.
GET /satellite-compare$0.03Compare two satellites by NORAD id side by side: period, altitudes, inclination, node and orbit class.
GET /satellite-elements$0.02Current orbital elements for a NORAD id with computed period, semi-major axis, perigee and apogee altitude.
GET /satellite-search$0.02Find satellites by name in the CelesTrak catalog: NORAD id, international designator, epoch and orbit class.

GET /catalog returns this list as JSON. Activity hub · uptime.


Orbital elements are CelesTrak general-perturbations data, provided as is; derived altitudes are mean-element estimates, not tracking data. Decay screens are heuristics, not predictions. No positions or passes are provided. Not for navigation, collision avoidance or operations. Every paid response carries a disclaimer field.