2_20701.txt c_ck21s010.txt C/2021 S1 ATLAS C/2021 S1 CK21S010 C/2021 S1 (ATLAS) 2022 03 01.0340 6.119278 1.001799 148.1910 299.8777 52.0766 2023 01 28 7.0 2000.0 4.0