2_20701.txt c_ck21a040.txt C/2021 A4 NEOWISE C/2021 A4 CK21A040 C/2021 A4 (NEOWISE) 2021 03 19.9982 1.146447 0.973290 204.7023 307.1025 111.5502 2022 03 27 16.0 2000.0 4.0