Astrometry at OAFA. Earth rotation

Abstract

A brief report on one of the astrometric activities (Earth Rotation) carried out at the "Félix Aguilar" Astronomical Observatory since its opening up to the present is given. I deals with: the importance of this research: the OAFA collaboration to the International Services, BIH and IPMS; the application of new techniques: VLBI, LLR and LSR, the new International Service, IERS, and its Reference System; and a brief account on the main tasks carried out and to be developed at the OAFA.