THE COMPLEX LIGHTCURVE OF 1992-NA

Amor asteroid 1992 NA was monitored during three nights at a large pha se angle of -65-degrees. The lightcurves obtained did not reveal a rep eatable curve with two maxima and two minima. However, some features s uggested a periodicity with three maxima and three minima. A satisfact ory composite lightcurve of this form was obtained by means of an ''ey eball'' fit and by Fourier analysis. Individual and composite lightcur ves are presented. The observed colors are consistent with the C class .