RT Conference Proceedings T1 Precise reflectante spectra of ordinary chondrites in the visible and uv : exploring the variability of s-class asteroidal spectra A1 Trigo Rodríguez, Josep María A1 Llorca, Jordi A1 Madiedo Gil, José María A1 Rivkin, A. S. A1 León, J. de A1 Pinilla Alonso, N. AB Narrow-band spectrophotometry programsfor the study of asteroids were initiated in the1960s [1,2], which were able to identify clear absorptionbands in the UV and visible, that were used lateron in order to develop the first asteroid taxonomy [3].A step forward was to remotely obtain reflectancespectra of asteroids to establish the existence of families[4, 5, 6], and to place meteorites broadly withinthese families based on their own spectra. This approachis imperfect due to space weathering, that togetherwith the presence of regolith, intrinsic roughness,etc., alters the reflectance spectra to be comparedwith spectra of meteorites in our laboratories. Currentlythere are several comprehensive spectral catalogueof meteorites [7-8], but we wish to explore thecapacities of current spectrographs to obtain reflectivitiesin those extreme regions of the electromagneticspectrum where data is poor (typically below 0.4 micronsand over 2.4 microns). Additionally we wish toexplore the importance of roughness as the reason forthe diverse mineralogy observed for S-class asteroidsthat are linked to the ordinary chondrites [9]. YR 2011 FD 2011 LK http://hdl.handle.net/10272/9363 UL http://hdl.handle.net/10272/9363 LA eng NO Trigo Rodríguez, J.M., Llorca, J., Madiedo Gil, J.M., Rivkin, A.S., León, J., Pinilla Alonso, N.: "Precise reflectante spectra of ordinary chondrites in the visible and uv : exploring the variability of s-class asteroidal spectra". En: 42nd Lunar and Planetary Science Conference (The Woolands, Texas, march 7-11, 2011) DS Repositorio Institucional de la Universidad de Huelva RD 28 may 2026