COMET DATE (UT) MM MAG. RF AP. T F/PWR COMA DC TAIL PA OBS. 2011A3 2011 06 28.93 S 14.7:HS 35 L 5 239 0.8 4 ICQ XX HOR03 COMET C/2011 A3 (Gibbs) 2011 Jun. 28.93, 14.7, 0'.8 (P. Horalek, Ondrejov, Czech Republic, 0.35-m reflector);