In this paper we have presented preliminary results obtained using the 430 MHz AO radar of the determination of the micrometeoric mass flux into the Earth's upper atmosphere. The Doppler-based velocity/deceleration results provide a direct method to determine this flux. We compared our results with those reported by Ceplecha et al.  and find reasonably good agreement if we include those events that no deceleration is observed. We will greatly enhance our meteor database in the next year as well as refine our deceleration determinations. This should yield firmer flux estimates.
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