2_20200.txt c_ck18s030.txt C/2018 S3 TESS C/2018 S3 CK18S030 C/2018 S3 (TESS) 2016 06 29.2285 8.012098 1.002446 263.9485 25.0451 78.2978 2023 02 28 6.0 2000.0 4.0