No mineralogical data is utilized in building the new kinds, nevertheless the exact same spectral recommendations which is used within the classifying asteroids within wavelength part gives a crude interpretation from surface composition
The latest EFOSC2 spectrograph is actually equipped with good 3 hundred ll/mm grating coating a spectral assortment 3500-9000 angstroms; the brand new B&C spectrograph that have a 150 ll/mm grating covering an effective spectral diversity 3700-7800 angstroms. Prejudice, flat-occupation, calibration light, basic celebrities and you may solar power analogs had been shielded to help you wavelength and you can flux calibrate the latest asteroidal spectra and to take away the solar contribution. The latest prevention is still happening at introduce data away from the fresh new Eso 2.