2_20200.txt  c_ck17d020.txt  C/2017 D2       Barros                                                                                               C/2017 D2       CK17D020     C/2017 D2 (Barros)                        2017 07 14.6101 2.486099   0.998643 334.3675   331.0276   31.2594    2018 12 04      11.0  2000.0 4.0