Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2016 December thru 2017 April

Lightcurves for 36 near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2016 December through 2017 April were analyzed for rotation period and signs of satellites or tumbling. In addition, using the recent and previously obtained dense data along with sparse data from NEA surveys, lightcurve inversion was used to produce spin axis and shape models for four asteroids: 3103 Eger, 4055 Magellan, (40267) 1999 GJ4, and (90075) 2002 VU94. Analysis of the observations of 2102 Tantalus and (5693) 1993 EA indicates that they might each be a singly-asynchronous binary. There is some evidence that (5626) 1991 FE may be another socalled “very wide binary.”