2_20200.txt c_ck16r020.txt C/2016 R2 PANSTARRS C/2016 R2 CK16R020 C/2016 R2 (PANSTARRS) 2018 05 09.0126 2.601038 0.994736 33.1371 80.5518 58.2494 2021 07 31 7.0 2000.0 4.0