2_20701.txt c_ck21a100.txt C/2021 A10 NEOWISE C/2021 A10 CK21A100 C/2021 A10 (NEOWISE) 2021 03 15.2656 1.268569 0.986369 82.2695 188.3493 151.5250 2021 07 31 19.0 2000.0 4.0