JPL Small Body Database: Asteroid and Comet Orbital and Physical Parameters

NASA's Jet Propulsion Laboratory provides data for all known asteroids and many comets. Newly discovered objects and their orbits are added daily, while discovery circumstances are updated roughly monthly. Physical parameters other than magnitude are updated on a less frequent basis.

Use Cases

• Predicting asteroid orbits based on daily updated orbital data.
• Analyzing discovery circumstances of small bodies based on monthly updated metadata.
• Studying the physical properties of asteroids and comets based on available magnitude and other physical parameters.

Strengths

• Data for all known asteroids and many comets.
• Orbital data for newly discovered objects is added on a daily basis.
• Discovery circumstances are updated on a roughly monthly interval.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Update frequency for physical parameters other than magnitude is described as 'less frequent'.

Provenance

Source

NASA Jet Propulsion Laboratory (JPL).

Collection Method

Observational data aggregation.

Freshness

Daily updates for new objects and orbits; monthly updates for discovery circumstances.

Geography

Solar system.