NEOWISE: Diameters and Albedos for Minor Planets and Irregular Satellites

A compilation of published diameters, optical albedos, near-infrared albedos, and beaming parameters for minor planets detected by the NEOWISE mission. The data covers near-Earth asteroids, Main Belt asteroids, Hildas, Jupiter Trojans, Centaurs, and Jovian and Saturnian irregular satellites. This dataset was produced by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Modeling asteroid thermal properties based on published beaming parameters.
• Analyzing the size distribution of different asteroid populations based on published diameters.
• Comparing surface reflectivity across asteroid classes based on optical and near-infrared albedos.
• Studying the physical characteristics of irregular satellites of Jupiter and Saturn.

Strengths

• Data covers multiple distinct populations: near-Earth asteroids, Main Belt asteroids, Hildas, Jupiter Trojans, Centaurs, and irregular satellites.
• Methodology for physical property determination is described in referenced articles.
• Last updated in March 2026, suggesting recent maintenance.

Limitations

• Row count, file formats, and column-level documentation are unknown, which limits suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Compilation of published measurements from the NEOWISE mission during its fully cryogenic, 3-band cryo, post-cryo, and Reactivation Year 1 operations.

Time Range

Covers the operational periods of the NEOWISE mission.

Freshness

Last updated 2026-03-13 20:08:20.813626

Geography

Solar system, covering various minor planet and satellite populations.