JASY: Asteroid Astrometry and Photometry Software

JASY is an open-source Python/PyQt6 application for the astrometric and photometric reduction of asteroid observations. It supports FITS/WCS handling, Astrometry.net solving, IMCCE SkyBoT field identification, JPL Horizons ephemerides, aperture photometry, relative photometry, ALCDEF-compatible export, diagnostic reports, and Fourier-based light-curve analysis.

This archived release corresponds to version v1.0.0 of JASY. It includes the source code, documentation, citation metadata, software metadata, tests, and example workflows.

The example workflows include FITS datasets and expected JASY outputs for:

- multiband photometry;
- relative light-curve extraction;
- period analysis using ALCDEF files and Fourier fitting.

JASY was developed as scientific software for astrometry and photometry of small bodies of the Solar System, with an emphasis on Near-Earth Objects.