2_20701.txt c_0074p.txt 74P Smirnova-Chernykh 74P/Smirnova-Ch 0074P 74P/Smirnova-Chernykh 2018 04 28.4724 4.247843 0.083256 139.4792 54.7907 6.3393 2023 01 28 5.0 2000.0 6.0