 According to the surveys carried out by the Japanese Akari satellite, the Infrared Spectrograph of the Spitzer Space Telescope, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, "Debussy" measures between 13.23 and 17.359 kilometers in diameter and its surface has an albedo between 0.039 and 0.07.The "Collaborative Asteroid Lightcurve Link" assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 14.64 kilometers with an absolute magnitude of 12.9.Between 2002 and 2016, a large number of rotational lightcurve of "Debussy" were obtained from photometric observations by predominantly Swiss, French and German astronomers.