Determinación de los parámetros H y G para 4000 asteroides del catálogo Gaia DR2

The Gaia mission will provide the scientific community with high- quality observations of ∼ 300,000 asteroids of all categories. The purpose of this work is to obtain a catalog of phase function parameters (H and G) for all the asteroids that are observed by the Gaia mission and which were published in the DR2 catalogue. For this purpose, we introduced an algorithm capable of building this catalog. We improved improved the determination of the H and G parameters of the phase function adding data from ground observations. We compared our results with those of the ASTROB database and found that the level of agreement is satisfactory.