An analysis of data obtained from the tracking of satellite 1965 89A, launched in November of 1965, revealed the existence of near-resonance conditions with the geopotential harmonics of order 12. Doppler data, received from the Navy's Geodetic Satellite tracking system, was used in the analysis. Residuals, expressed in terms of station along-track (ECA) errors, were used in examining the resonance effects of the harmonics of order 12. The EGA errors represent the amount the station must be moved in the direction of the satellite's velocity vector at time of closest approach in order to minimize the theoretical minus experimental Doppler residuals Yionoulis [1965]. These, in turn, may be expressed in terms of a satellite along-track (L) error, on the assumption that errors in the station position are much smaller than the errors in the satellite's predicted position.