Catalog API
Query the object catalog by NORAD ID, international designator, orbital regime, or custom filter. Returns state vectors, covariance matrices, and object metadata.
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Integrate space domain awareness into your operations.
The Skye.ly API provides programmatic access to our object catalog, conjunction screening, and event notification services. Build automated workflows for your flight dynamics team.
Conjunction screening
Submit your ephemeris or TLE set and receive conjunction data messages (CDMs) for all close approaches within your screening volume and time window.
Event notifications
Subscribe to real-time webhooks for conjunction alerts, maneuver detections, breakup events, and custody loss warnings. Filter by object, regime, or risk threshold.
Example request
GET /v1/conjunctions?object_id=25544&threshold_pc=1e-5&window_hours=72
{
"conjunctions": [
{
"primary": "ISS (ZARYA)",
"secondary": "FENGYUN 1C DEB",
"tca": "2026-05-17T08:42:31Z",
"miss_distance_m": 142.7,
"probability": 4.3e-3
}
]
}