Rotation Period, Spin Axis, and Shape Model for Main-belt Asteroid 92 Undina

CCD photometry observations of 92 Undina in 2014 April found a synodic rotation period of 15.933 ± 0.002 h and lightcurve amplitude of 0.16 ± 0.01 mag. An attempt was made to model the spin axis and shape for the asteroid using a combination of dense lightcurves from three apparitions and sparse data from two survey programs. The results were inconclusive other than to indicate that the pole latitude is not far removed from the ecliptic plane and rotation is probably retrograde.