The ACROSS team: P. Tanga (project coordinator, Université Côte d’Azur, OCA, CNRS/Lab. Lagrange), K. Tsiganis (partner coordinator, Aristotle University of Thessaloniki), D. Souami (ACROSS post-doc, Université Côte d’Azur, OCA, CNRS/Lab. Lagrange), J. Ferreira (post-doc, Aristotle University of Thessaloniki), A. Siakas (student, Aristotle University of Thessaloniki.

P. Tanga, K. Tsiganis, and D. Souami are also members of the DART IT (Investigation Team). Data collected by DART IT were used to extract astrometry of Didymos using the high accuracy pipeline developed by S. Bouquillon (Observatoire de Paris) for the ground-based follow-up of the Gaia satellite http://gbot.obspm.fr/

Steve Chesley is at JPL / Solar System Dynamic group https://ssd.jpl.nasa.gov

Roger Venable and Robert Dunford are occultation observers affiliated to International Occultation Timing Association (IOTA). The campaign in Japan was led by Hiroyuki Watanabe from the Japan Occultation Information Network (JOIN).

ACROSS heavily relies on the orbFit software for orbit improvement (F. Spoto, Minor Planet Center), on the Horizons web service by JPL (https://ssd.jpl.nasa.gov/horizons/) and on astrometry provided by ESA/Gaia.

ACROSS acknowledges support by ESA contract 2-1775/21/NL/GL/ov