Sign in to view source links and access this dataset
Description
NASA's Center for Near Earth Object Studies (CNEOS) tracks close approaches of asteroids to Earth. The dataset contains 70,944 close-approach events involving 20,159 unique asteroids, with data on size estimates, speed, miss distance, and hazard classification. It is sourced from the NASA NeoWs API and periodically refreshed.
Use Cases
Analyze asteroid close-approach frequency and trends based on the temporal coverage from 2000 to present.
Model potential impact risk based on asteroid size estimates and miss distance data.
Study the characteristics of Potentially Hazardous Asteroids (PHAs) based on the hazard classification mentioned.
Track the orbital behavior of specific asteroids based on the record of 20,159 unique objects.
Strengths
Contains 70,944 close-approach events, providing a substantial observational record.
Covers 20,159 unique asteroids, offering a broad sample of near-Earth objects.
Includes specific data points like size estimates, speed, and miss distance for each event.
Sourced from the authoritative NASA NeoWs API, ensuring data credibility.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment for specific modeling tasks.
Last updated 2026-07-15 14:48:12; freshness should be verified against the source API.
Provenance
Source
NASA Center for Near Earth Object Studies (CNEOS) via the NASA NeoWs API.
Collection Method
Aggregated via the public API.
Time Range
2000 to present.
Freshness
Periodically refreshed via NASA NeoWs public API.
Geography
Near-Earth space.
License information is unknown and should be verified before use.