31P/Schwassmann-Wachmann Orbit by S. Nakano NK 3791 (2019) Last obs. 2021 05 30 (F51)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2028 Mar. 18.80876 3.4129057 0.1933887 8.70 17.90050 114.11307 4.54979 0.200 2025 May 5.0 m1 = 11.5 + 5 log Delta + 7.5 log r Date/ 0h TT R.A.(1950) Decl. R.A.(2000) Decl. Delta r Variation Magnitude Mot./PA Elong. P PA/Tail Moon Age h m ¡ , h m ¡ , for T=+1 day m1 , ¡ ¡ ¡ ¡ ¡ ¡ 2024 Dec. 26 22 28.21 -13 05.1 22 30.87 -12 49.7 5.274 4.863 -0.29 - 1.4 20.3 10.7/ 67 60.3 10.1 70/0.37 117 .23 2025 Jan. 5 22 34.95 -12 23.1 22 37.60 -12 07.5 5.398 4.854 -0.28 - 1.4 20.3 11.8/ 67 52.0 9.2 71/0.33 12 .28 15 22 42.33 -11 37.4 22 44.97 -11 21.6 5.507 4.845 -0.28 - 1.4 20.3 12.6/ 67 43.8 8.1 71/0.28 149 .99 25 22 50.23 -10 48.4 22 52.86 -10 32.5 5.600 4.835 -0.28 - 1.4 20.4 13.3/ 67 35.7 6.8 72/0.24 91 .22 Feb. 4 22 58.54 -09 56.8 23 01.16 -09 40.7 5.675 4.826 -0.27 - 1.4 20.4 13.8/ 67 27.8 5.5 73/0.19 45 .35 14 23 07.17 -09 03.2 23 09.77 -08 46.9 5.731 4.816 -0.27 - 1.5 20.4 14.2/ 67 20.1 4.0 76/0.14 176 .98 24 23 16.01 -08 08.2 23 18.60 -07 51.7 5.767 4.806 -0.27 - 1.5 20.4 14.5/ 67 12.5 2.6 81/0.09 64 .19 Mar. 6 23 24.99 -07 12.3 23 27.57 -06 55.7 5.782 4.795 -0.27 - 1.5 20.4 14.6/ 67 5.5 1.1 102/0.04 77 .42 16 23 34.03 -06 16.2 23 36.61 -05 59.6 5.776 4.785 -0.27 - 1.5 20.4 14.6/ 68 4.4 0.9 200/0.03 158 .97 26 23 43.06 -05 20.4 23 45.63 -05 03.8 5.750 4.774 -0.27 - 1.6 20.4 14.4/ 68 11.0 2.3 230/0.08 36 .16 Apr. 5 23 52.01 -04 25.7 23 54.57 -04 09.0 5.703 4.764 -0.27 - 1.6 20.4 14.2/ 68 18.3 3.8 237/0.13 107 .49 15 00 00.80 -03 32.5 00 03.36 -03 15.8 5.637 4.753 -0.28 - 1.7 20.3 13.8/ 68 25.7 5.2 240/0.18 132 .96 25 00 09.36 -02 41.5 00 11.92 -02 24.8 5.552 4.741 -0.28 - 1.7 20.3 13.3/ 69 33.1 6.6 241/0.23 7 .11 May 5 00 17.62 -01 53.4 00 20.18 -01 36.7 5.451 4.730 -0.29 - 1.7 20.2 12.6/ 69 40.5 8.0 243/0.28 135 .54 15 00 25.50 -01 08.6 00 28.06 -00 52.1 5.333 4.718 -0.30 - 1.8 20.2 11.8/ 70 48.1 9.2 243/0.33 106 .95 25 00 32.92 -00 28.0 00 35.48 -00 11.5 5.202 4.707 -0.30 - 1.8 20.1 10.9/ 71 55.7 10.2 244/0.38 26 .07 June 4 00 39.77 +00 08.0 00 42.33 +00 24.4 5.059 4.695 -0.31 - 1.9 20.1 9.8/ 72 63.5 11.1 245/0.42 163 .58 14 00 45.96 +00 38.5 00 48.52 +00 54.9 4.907 4.683 -0.32 - 2.0 20.0 8.5/ 73 71.4 11.9 246/0.46 78 .93 24 00 51.38 +01 03.1 00 53.95 +01 19.3 4.747 4.670 -0.34 - 2.0 19.9 7.0/ 75 79.5 12.4 246/0.50 60 .03 July 4 00 55.90 +01 20.9 00 58.47 +01 37.1 4.584 4.658 -0.35 - 2.1 19.8 5.4/ 79 87.9 12.6 247/0.52 167 .61 14 00 59.41 +01 31.5 01 01.98 +01 47.6 4.419 4.645 -0.36 - 2.2 19.7 3.6/ 85 96.5 12.6 248/0.54 45 .89 24 01 01.80 +01 34.4 01 04.37 +01 50.5 4.257 4.632 -0.38 - 2.3 19.6 1.8/107 105.4 12.2 249/0.54 95 .01 Aug. 3 01 02.94 +01 29.1 01 05.51 +01 45.1 4.102 4.620 -0.39 - 2.4 19.5 1.4/191 114.7 11.5 250/0.53 138 .64 13 01 02.77 +01 15.6 01 05.34 +01 31.7 3.958 4.606 -0.41 - 2.5 19.5 3.1/227 124.4 10.5 251/0.50 11 .84 23 01 01.26 +00 54.3 01 03.83 +01 10.4 3.828 4.593 -0.43 - 2.6 19.4 5.1/236 134.4 9.1 253/0.45 132 .00 Sept. 2 00 58.45 +00 25.9 01 01.01 +00 42.0 3.718 4.580 -0.44 - 2.6 19.3 6.8/240 144.8 7.3 255/0.37 105 .66 12 00 54.49 -00 08.2 00 57.05 +00 08.1 3.632 4.566 -0.45 - 2.7 19.2 8.2/243 155.4 5.3 259/0.27 35 .77 22 00 49.60 -00 45.7 00 52.16 -00 29.4 3.572 4.552 -0.46 - 2.7 19.2 9.1/245 165.9 3.1 270/0.16 167 .00 Oct. 2 00 44.13 -01 24.3 00 46.69 -01 07.9 3.542 4.538 -0.46 - 2.7 19.2 9.2/247 174.1 1.3 322/0.07 68 .70 12 00 38.50 -02 00.8 00 41.05 -01 44.3 3.541 4.524 -0.46 - 2.7 19.2 8.7/249 168.7 2.5 37/0.13 78 .69 22 00 33.12 -02 32.5 00 35.68 -02 16.0 3.571 4.510 -0.45 - 2.7 19.2 7.4/251 158.1 4.7 53/0.25 152 .00 Nov. 1 00 28.43 -02 57.1 00 30.99 -02 40.5 3.629 4.496 -0.44 - 2.6 19.2 5.7/254 147.2 6.9 58/0.36 30 .73 11 00 24.76 -03 12.7 00 27.31 -02 56.1 3.713 4.481 -0.43 - 2.5 19.2 3.7/261 136.3 8.8 61/0.45 118 .63 21 00 22.34 -03 18.6 00 24.90 -03 02.0 3.817 4.467 -0.41 - 2.4 19.3 1.6/285 125.8 10.3 63/0.51 117 .01 Dec. 1 00 21.32 -03 14.4 00 23.88 -02 57.8 3.937 4.452 -0.40 - 2.3 19.3 1.5/ 24 115.5 11.5 64/0.56 12 .78 11 00 21.75 -03 00.6 00 24.30 -02 43.9 4.070 4.437 -0.38 - 2.3 19.4 3.6/ 50 105.6 12.3 65/0.58 154 .59 21 00 23.57 -02 37.6 00 26.13 -02 21.0 4.209 4.422 -0.37 - 2.2 19.5 5.7/ 57 96.0 12.8 66/0.58 85 .01 31 00 26.73 -02 06.6 00 29.28 -01 50.0 4.351 4.407 -0.36 - 2.1 19.5 7.6/ 60 86.8 12.9 67/0.56 46 .84 2026 Jan. 10 00 31.09 -01 28.4 00 33.65 -01 11.8 4.491 4.392 -0.35 - 2.1 19.6 9.3/ 62 77.9 12.6 68/0.54 171 .56 20 00 36.55 -00 44.1 00 39.11 -00 27.6 4.626 4.376 -0.34 - 2.1 19.6 10.8/ 63 69.3 12.1 68/0.50 56 .01 30 00 42.97 +00 05.3 00 45.53 +00 21.7 4.753 4.361 -0.33 - 2.0 19.7 12.1/ 64 61.0 11.4 69/0.46 80 .89 Feb. 9 00 50.22 +00 58.7 00 52.79 +01 15.0 4.869 4.345 -0.33 - 2.0 19.7 13.2/ 65 52.9 10.4 70/0.41 147 .55 19 00 58.20 +01 55.4 01 00.77 +02 11.6 4.972 4.330 -0.33 - 2.0 19.8 14.2/ 65 45.0 9.3 71/0.36 27 .03 Mar. 1 01 06.80 +02 54.4 01 09.38 +03 10.4 5.060 4.314 -0.32 - 2.0 19.8 14.9/ 66 37.3 8.0 73/0.31 112 .93