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Recent dynamical studies have identified pairs of asteroids that reside innearly identical heliocentric orbits. Possible formation scenarios for thesesystems include dissociation of binary asteroids, collisional disruption of asingle parent body, or spin-up and rotational fission of a rubble-pile. Asidefrom detailed dynamical analyses and measurement of rotational light curves,little work has been done to investigate the colors or spectra of these unusualobjects. A photometric and spectroscopic survey was conducted to determine thereflectance properties of asteroid pairs. New observations were obtained for atotal of 34 individual asteroids. Additional photometric measurements wereretrieved from the Sloan Digital Sky Survey Moving Object Catalog. Colors orspectra for a total of 42 pair components are presented here. The main findingsof this work are: (1) the components in the observed pair systems have the samecolors within the uncertainties of this survey, and (2) the color distributionof asteroid pairs appears indistinguishable from that of all Main Beltasteroids. These findings support a scenario of pair formation from a commonprogenitor and suggest that pair formation is likely a compositionallyindependent process. In agreement with previous studies, this is mostconsistent with an origin via binary disruption and/or rotational fission.

Colors of Dynamically Associated Asteroid Pairs