Orbit determination of faint meteors with radio interferometry using the MU radar

摘要

The MU radar of Kyoto University, Japan has a unique capability of a high sensitivity to the echoes from the ionized atmosphere around meteors. In this study, we developed an orbit determination procedure based on the Doppler pulse compression and the interferometry. We applied this method to actual observations, and examined its accuracy. We also developed an ICCD video camera system for simultaneous observations with the MU radar. Direct comparison indicates that the MU radar has a sensitivity of around +12 magnitude.