NASA Near-Earth Asteroids and Close Approach Data

NASA's dataset contains over 35,000 near-Earth asteroids, tracking attributes like size, orbit, and hazard level. It includes records of close approaches to Earth spanning a 20-year period. The data originates from NASA's monitoring programs.

Use Cases

• Classify asteroid hazard level based on size and orbital parameters.
• Predict future close approach dates and distances using historical orbital time-series data.
• Cluster asteroids into families using orbital element features like eccentricity and inclination.
• Model the relationship between asteroid size and estimated impact energy for risk scoring.

Strengths

• Over 35,000 individual asteroid records.
• Temporal coverage includes 20 years of close approach events.

Limitations

• Specific row counts and column details for the close approach records are unknown.
• Data freshness and update frequency are unspecified.

Provenance

Source

NASA

Collection Method

Astronomical observation and orbital calculation programs.

Time Range

Includes 20 years of close approach data.

Geography

Near-Earth space.