(27568) 2000 PT6: A NEW HUNGARIA BINARY.

Analysis of CCD photometric observations of the Hungaria asteroid (27568) 2000 PT6 shows that the asteroid is a binary system. The primary has period of 3.4885 ± 0.0002 h. No mutual events were observed, i.e., occultations or eclipses. However, there is a strong secondary period with a bimodal lightcurve of 16.356 ± 0.003 h. This secondary lightcurve indicates a slightly elongated satellite of somewhat irregular shape that may be tidally-locked to its orbital period. The discovery of the satellite led to a revision of previous results from 2011.