ECAS: Reflectance Spectra for 589 Asteroids

NASA's Eight Color Asteroid Survey (ECAS) provides reflectance spectra and associated data for 589 asteroids. The dataset is sourced from the U.S. government's open data platform and was last updated in March 2026. It likely contains measurements of asteroid surface properties across multiple wavelengths.

Use Cases

• Classify asteroids into taxonomic groups based on reflectance spectra.
• Model asteroid surface composition using multi-wavelength reflectance data.
• Compare spectral properties across a sample of 589 solar system bodies.

Strengths

• Contains data for 589 distinct asteroids.
• Originates from NASA, a leading space science institution.
• Last update timestamp (2026-03-05) is provided.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Observational survey, likely from ground-based telescopes.

Freshness

Last updated 2026-03-05 19:48:50.805473; freshness should be verified.