Photometric, spectral phase and temperature effects on 4 Vesta and HED meteorites: Implications for the Dawn mission

► We have derived photometric, spectral phase and temperature functions for Vesta. ► Spectral phase functions affect band parameters i.e. band depth and Band Area Ratio. ► Temperature affects the Band I and II centers of the pyroxene absorption band. ► These effects need to be corrected for before mineralogical characterization.