2_20701.txt c_ck21r020.txt C/2021 R2 PANSTARRS C/2021 R2 CK21R020 C/2021 R2 (PANSTARRS) 2021 12 26.5146 7.313075 0.996965 32.4152 16.2946 134.4810 2022 12 10 7.5 2000.0 4.0