139P/Vaisala-Oterma Orbit by T. Kobayashi NK 2737 (2014) Last obs. 2019 02 04 (F51)

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2027 July 21.95964 3.3945706 0.2483346 9.60 165.88552 242.14277 2.33835 0.200 2024 Mar. 31.0 m1 = 9.0 + 5 log Delta + 10.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2023 Dec. 22 17 09.70 -22 25.0 17 12.71 -22 28.6 6.375 5.411 -0.26 + 0.2 20.4 12.7/ 94 10.5 1.9 277/0.06 129 .74 2024 Jan. 1 17 18.85 -22 33.5 17 21.87 -22 36.4 6.324 5.400 -0.26 + 0.1 20.3 12.4/ 93 18.5 3.3 275/0.10 105 .78 11 17 27.83 -22 39.6 17 30.85 -22 41.9 6.251 5.390 -0.26 + 0.1 20.3 12.0/ 92 26.6 4.7 274/0.15 21 .01 21 17 36.51 -22 43.6 17 39.53 -22 45.2 6.158 5.379 -0.27 0.0 20.3 11.4/ 91 34.8 6.0 273/0.19 159 .79 31 17 44.78 -22 45.3 17 47.80 -22 46.3 6.046 5.368 -0.27 - 0.1 20.2 10.7/ 90 43.1 7.2 272/0.23 80 .77 Feb. 10 17 52.52 -22 45.2 17 55.55 -22 45.7 5.917 5.357 -0.28 - 0.1 20.1 9.8/ 89 51.4 8.3 271/0.27 52 .00 20 17 59.61 -22 43.5 18 02.64 -22 43.4 5.773 5.346 -0.29 - 0.2 20.1 8.7/ 88 59.9 9.2 270/0.31 169 .82 Mar. 1 18 05.93 -22 40.4 18 08.96 -22 39.9 5.617 5.335 -0.30 - 0.2 20.0 7.5/ 87 68.5 10.0 269/0.34 52 .75 11 18 11.35 -22 36.4 18 14.38 -22 35.5 5.453 5.323 -0.31 - 0.2 19.9 6.1/ 86 77.3 10.5 269/0.37 86 .01 21 18 15.74 -22 31.9 18 18.77 -22 30.6 5.283 5.311 -0.32 - 0.3 19.9 4.5/ 84 86.2 10.8 268/0.39 140 .84 31 18 19.00 -22 27.2 18 22.02 -22 25.7 5.111 5.299 -0.33 - 0.3 19.8 2.8/ 81 95.3 10.8 268/0.41 21 .72 Apr. 10 18 21.00 -22 22.8 18 24.02 -22 21.1 4.942 5.286 -0.34 - 0.3 19.7 1.0/ 67 104.7 10.6 267/0.41 122 .02 20 18 21.68 -22 18.8 18 24.70 -22 17.1 4.779 5.274 -0.35 - 0.4 19.6 1.0/289 114.4 10.0 267/0.40 109 .86 30 18 21.00 -22 15.4 18 24.01 -22 13.8 4.628 5.261 -0.37 - 0.4 19.5 2.9/275 124.2 9.1 267/0.38 17 .66 May 10 18 18.95 -22 12.7 18 21.96 -22 11.2 4.492 5.248 -0.38 - 0.4 19.5 4.6/272 134.4 7.9 267/0.34 158 .05 20 18 15.62 -22 10.4 18 18.64 -22 09.2 4.375 5.235 -0.39 - 0.3 19.4 6.2/271 144.8 6.4 266/0.28 76 .88 30 18 11.19 -22 08.5 18 14.20 -22 07.6 4.282 5.221 -0.40 - 0.3 19.3 7.4/271 155.4 4.6 266/0.21 56 .58 June 9 18 05.89 -22 06.6 18 08.90 -22 06.0 4.216 5.208 -0.40 - 0.3 19.3 8.1/271 166.2 2.7 264/0.12 162 .07 19 18 00.06 -22 04.5 18 03.08 -22 04.3 4.179 5.194 -0.40 - 0.2 19.3 8.3/271 176.9 0.6 244/0.03 40 .90 29 17 54.10 -22 02.1 17 57.11 -22 02.4 4.172 5.180 -0.40 - 0.2 19.2 7.9/271 171.8 1.6 100/0.07 99 .49 July 9 17 48.39 -21 59.6 17 51.40 -22 00.3 4.194 5.166 -0.40 - 0.1 19.2 7.1/271 161.0 3.7 95/0.17 125 .09 19 17 43.32 -21 57.1 17 46.33 -21 58.2 4.244 5.151 -0.39 - 0.1 19.3 5.7/272 150.3 5.6 94/0.25 7 .92 29 17 39.20 -21 55.0 17 42.20 -21 56.4 4.319 5.137 -0.38 0.0 19.3 4.1/271 139.8 7.3 93/0.32 141 .40 Aug. 8 17 36.26 -21 53.7 17 39.26 -21 55.3 4.416 5.122 -0.37 0.0 19.3 2.2/271 129.6 8.8 93/0.38 90 .11 18 17 34.66 -21 53.4 17 37.66 -21 55.1 4.530 5.107 -0.36 0.0 19.4 0.3/256 119.6 9.9 93/0.42 37 .95 28 17 34.45 -21 54.1 17 37.46 -21 55.8 4.658 5.092 -0.35 0.0 19.4 1.7/ 96 109.9 10.8 93/0.44 173 .33 Sept. 7 17 35.65 -21 55.7 17 38.66 -21 57.4 4.795 5.076 -0.34 0.0 19.5 3.6/ 94 100.5 11.3 92/0.45 58 .13 17 17 38.20 -21 58.2 17 41.21 -21 59.6 4.936 5.061 -0.33 0.0 19.5 5.3/ 93 91.4 11.5 92/0.44 73 .98 27 17 42.02 -22 01.0 17 45.03 -22 02.2 5.077 5.045 -0.32 - 0.1 19.6 6.9/ 92 82.5 11.4 91/0.43 146 .28 Oct. 7 17 47.00 -22 03.7 17 50.02 -22 04.5 5.215 5.029 -0.31 - 0.1 19.6 8.4/ 91 73.8 11.0 91/0.41 28 .15 17 17 53.05 -22 05.9 17 56.06 -22 06.3 5.346 5.013 -0.31 - 0.1 19.6 9.7/ 91 65.3 10.4 90/0.37 108 1.00 27 18 00.02 -22 07.1 18 03.03 -22 07.0 5.468 4.996 -0.30 - 0.2 19.7 10.8/ 90 57.0 9.6 89/0.34 117 .25 Nov. 6 18 07.81 -22 06.8 18 10.83 -22 06.1 5.577 4.980 -0.30 - 0.2 19.7 11.8/ 89 48.8 8.6 88/0.30 7 .18 16 18 16.30 -22 04.5 18 19.31 -22 03.2 5.671 4.963 -0.30 - 0.3 19.7 12.6/ 88 40.7 7.5 87/0.26 140 1.00 26 18 25.37 -21 59.9 18 28.37 -21 58.0 5.748 4.946 -0.30 - 0.3 19.7 13.3/ 87 32.7 6.2 85/0.21 91 .24 Dec. 6 18 34.90 -21 52.8 18 37.90 -21 50.1 5.806 4.929 -0.30 - 0.4 19.7 13.8/ 86 24.8 4.8 83/0.16 32 .23 16 18 44.79 -21 42.8 18 47.78 -21 39.4 5.845 4.912 -0.30 - 0.5 19.7 14.2/ 85 17.0 3.4 81/0.11 169 .99 26 18 54.92 -21 29.9 18 57.90 -21 25.8 5.863 4.895 -0.30 - 0.5 19.7 14.4/ 84 9.2 1.8 76/0.06 66 .23 2025 Jan. 5 19 05.19 -21 14.0 19 08.17 -21 09.2 5.860 4.877 -0.30 - 0.6 19.7 14.5/ 83 1.9 0.4 45/0.01 63 .28 15 19 15.49 -20 55.2 19 18.46 -20 49.7 5.835 4.860 -0.30 - 0.7 19.7 14.5/ 82 6.6 1.3 275/0.04 160 .99 25 19 25.73 -20 33.7 19 28.68 -20 27.5 5.790 4.842 -0.31 - 0.8 19.7 14.4/ 81 14.3 2.9 267/0.09 41 .22 Feb. 4 19 35.80 -20 09.8 19 38.73 -20 03.0 5.723 4.824 -0.31 - 0.8 19.6 14.1/ 80 22.0 4.4 264/0.15 94 .35 14 19 45.60 -19 43.9 19 48.51 -19 36.3 5.638 4.805 -0.32 - 0.9 19.6 13.6/ 78 29.8 5.9 262/0.20 134 .98 24 19 55.03 -19 16.3 19 57.93 -19 08.1 5.533 4.787 -0.32 - 1.0 19.5 13.0/ 77 37.6 7.2 261/0.25 16 .19 Mar. 6 20 03.99 -18 47.6 20 06.88 -18 38.9 5.412 4.769 -0.33 - 1.1 19.5 12.3/ 76 45.4 8.5 259/0.30 126 .42 16 20 12.39 -18 18.4 20 15.25 -18 09.2 5.276 4.750 -0.34 - 1.2 19.4 11.4/ 75 53.4 9.7 258/0.35 108 .97 26 20 20.11 -17 49.4 20 22.96 -17 39.7 5.127 4.731 -0.35 - 1.3 19.3 10.3/ 74 61.4 10.7 257/0.39 15 .16

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