2_20200.txt  c_ck17e010.txt  C/2017 E1       Borisov                                                                                              C/2017 E1       CK17E010     C/2017 E1 (Borisov)                       2017 04 10.1448 0.900612   1.002645 152.4781   142.7281   14.5537    2017 11 23      14.0  2000.0 4.0