Cosmic Ray Energy spectrum above 3 10 18 eV observed with AGASA

We report the energy spectrum of primary cos- mic rays above 3 10 18 eV using the updated data set (May, 2001) of the Akeno Giant Air Shower Array (AGASA). In order to increase statistics and cover a larger area of the sky, events up to 60 in zenith angle are used, so that the expo- sure used for the analysis is increased by 50% above 10 19 eV compared with that so far used. A new conversion relation from S0(600) to E0 is used in the energy estimation. The energy spectrum extends up to a few times 10 20 eV without a cutoff and the total number of candidates above 10 20 eV is