He has been a professor at UNAM since 1980 and a full-time researcher at UNAM since 1992, first at the Institute of Geology and later and to date at the Geosciences Institute of UNAM-Juriquilla-Querétaro.
The primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" [1 ] and data available from the Minor Planet Center. [2 ] [3 ] Critical list information is also provided by the MPC, [2 ] [3 ] unless…
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