Lightcurve analysis gave a well-defined rotation period of hours with a brightness amplitude of magnitude (). This result supersedes previous observations with tentative period determinations by French amateur astronomers René Roy and Laurent Bernasconi (). Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), the Japanese Akari satellite, and the Infrared Astronomical Satellite IRAS, Toni measures (), () and () kilometers in diameter and its surface has a low albedo of (), () and (), respectively. The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0432 and a diameter of 85.49 km based on an absolute magnitude of 9.37. Further published mean-diameters and albedos by the WISE team include () and () and albedos of () and (). Notes References External links Lightcurve Database Query (LCDB), at www.minorplanet.info Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 000924 Discoveries by Karl Wilhelm Reinmuth Named minor planets 000924 000924 19191020