2_20701.txt c_pk12u27s.txt P/2012 US27 Siding Spring P/2012 US27 PK12U27S P/2012 US27 (Siding Spring) 2013 02 08.5269 1.820747 0.648641 1.2570 49.2027 39.2888 2013 06 26 13.5 2000.0 4.0