2_20701.txt c_ck17t020.txt C/2017 T2 PANSTARRS C/2017 T2 CK17T020 C/2017 T2 (PANSTARRS) 2020 05 04.8196 1.613492 0.998976 92.9208 64.4142 57.2650 2023 01 28 5.0 2000.0 4.0