THREE UNUSUAL HUNGARIA ASTEROIDS.

Three Hungaria asteroids observed at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) in 2015 January-March showed unusual characteristics. 2449 Kenos, a probable member of the Hungaria collisional family, is likely to be a binary object with period P 1 = 3.8481 h and P 2 = 15.85 h. The 2015 observations of 6901 Roybishop, a member of the Hungaria orbital group, showed signs of a weak secondary period, P 2 = 10.58 h. The secondary period is in contradiction with previous results. (23615) 1996 FK12 may be another example of so-called wide binaries, showing a strong short period, P 2 = 3.6456 h, presumably due to a widely-separated satellite that is not tidally locked to a very long orbital period. The primary in such a system has a very long period, P 1 = 368 h in this instance. The main question for 1996 FK12 is the validity of the long period.