This dataset has been created under the framework of the Montsec Observatory (OdM), a scientific and technological infrastructure managed by the Institute of Space Studies of Catalonia (IEEC) under an agreement with the Ministry of Research and Universities of the Generalitat de Catalunya. It contains a long-term catalog of astrometric and photometric measurements obtained with the Joan Oró Telescope (TJO), an 80 cm telescope located at the OdM.

The catalog covers observations acquired between October 2014 and September 2024. Each image collected by the TJO has been processed through a custom pipeline, which applies source extraction (using SExtractor) to detect stars and other objects. For each detected source, the pipeline provides positional (astrometric) and brightness (photometric) information, along with quality parameters.

The dataset has been divided into manageable sky regions, organized in right ascension (RA) bins of 15 degrees and declination (DEC) bins of 5 degrees. In total, the catalog comprises approximately 600 files. Each folder groups sources by RA range, and each file within a folder corresponds to a specific RA/DEC region.

All files are in CSV format, comma-separated, and contain the following columns: alpha_j2000, delta_j2000, jd, filter, mag_calib, magerr_calib, fwhm_world, ellipticity, theta_j2000, flags, image_id. See the README.txt file for detailed definitions of each column.

SExtractor, 2.25

Astrometry.net, 0.97