GASP — Gaia Asteroid Spectral Pipeline

A reproducible pipeline to download, correct, and cross-match asteroid reflectance spectra from the ESA Gaia DR3 archive. Produces a catalog of 19,190 asteroids with NUV-corrected spectra, SDSS photometry, family membership, orbital classification, and spectral slopes. v2.0.0 (2026-04-16): Added ML-based taxonomy classifier (RandomForest, Optuna-optimized, F1-macro = 0.72). New columns: taxonomy_ml, taxonomy_ml_prob, taxonomy_ml_source, taxonomy_ml_x_refined. taxonomy_final coverage: 8,186 asteroids (42.7%). X-type subclassification (E/M/P) for 540 asteroids via NEOWISE albedo. Catalog now 19,190 × 77 columns. The companion paper is published in Research Notes of the AAS:Scheibenpflug (2026), DOI: 10.3847/2515-5172/ae5e45