Discovery announced on CBET 3268.
Orbital elements: Orbital elements by G. V. Williams (CBET 3268). T = 2012 Aug. 27.8394 TT Peri. = 213.6793 e = 0.558845 Node = 184.2301 2000.0 q = 3.452330 AU Incl. = 9.9307 a = 7.825659 AU n = 0.0450218 P = 21.892 years
Astrometric observations of this comet from the Minor Planet Center archive are available here.