2_20701.txt c_0029p.txt 29P Schwassmann-Wachmann 1 29P/Schwass.-W1 0029P 29P/Schwassmann-Wachmann 2019 04 30.8917 5.783444 0.044325 51.7805 312.4047 9.3604 2023 11 28 4.0 2000.0 4.0