Absolute photometry of small main-belt asteroids in 2007-2009

► We present the results of a part of a project of photometric studies of small asteroids in the inner main-belt. ► We measured the absolute brightness, the color indices and determined the diameters of the asteroids. ► Composite light curves were constructed and periods of rotation and amplitude of variations were defined. ► It was found that the absolute magnitude of observed asteroids was mostly greater than predicted.