2_20200.txt  c_ck17x010.txt  C/2017 X1       PANSTARRS                                                                                            C/2017 X1       CK17X010     C/2017 X1 (PANSTARRS)                     2018 06 14.7320 4.669217   0.850360 283.2526   251.1343   31.3123    2021 10 18      10.0  2000.0 4.0