199P/Shoemaker Orbit by S. Nakano NK 4941 (2023) Observed in 2nd half of 2023

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2023 Aug. 7.59303 2.9103303 0.5048528 14.2 191.77907 92.34932 24.93873 0.200 2024 Mar. 31.0 m1 = 10.0 + 5 log Delta + 10.0 log r Date/ 0h TT R.A.(1950) Decl. R.A.(2000) Decl. Delta r Daily motion Magnitude Mot./PA Elong. P PA/Tail Moon Age h m ¡ , h m ¡ , m , m1 , ¡ ¡ ¡ ¡ ¡ ¡ 2023 Dec. 22 20 31.82 -32 53.7 20 34.94 -32 43.3 3.813 3.067 +1.82 + 4.4 17.8 23.5/ 80 35.6 10.8 95/0.53 86 .74 2024 Jan. 1 20 50.07 -32 10.3 20 53.14 -31 59.0 3.900 3.090 +1.81 + 5.0 17.9 23.7/ 79 30.2 9.2 99/0.45 150 .78 11 21 08.27 -31 21.2 21 11.29 -31 08.9 3.976 3.114 +1.80 + 5.5 17.9 23.9/ 78 25.2 7.7 105/0.37 29 .01 21 21 26.32 -30 27.2 21 29.29 -30 14.0 4.040 3.139 +1.78 + 5.9 18.0 23.9/ 77 20.7 6.4 115/0.30 110 .79 31 21 44.14 -29 29.4 21 47.05 -29 15.4 4.092 3.165 +1.75 + 6.1 18.1 23.8/ 76 17.3 5.3 129/0.25 130 .77 Feb. 10 22 01.65 -28 28.7 22 04.51 -28 14.2 4.132 3.193 +1.71 + 6.3 18.1 23.6/ 76 15.6 4.8 149/0.22 11 .00 20 22 18.80 -27 26.5 22 21.61 -27 11.4 4.160 3.222 +1.67 + 6.3 18.2 23.3/ 75 16.1 4.9 170/0.22 133 .82 Mar. 1 22 35.55 -26 23.9 22 38.31 -26 08.3 4.174 3.251 +1.63 + 6.2 18.2 22.9/ 75 18.7 5.6 188/0.26 110 .75 11 22 51.86 -25 22.0 22 54.57 -25 06.0 4.177 3.282 +1.58 + 6.0 18.3 22.4/ 75 22.6 6.7 200/0.30 28 .01 21 23 07.69 -24 22.2 23 10.36 -24 05.9 4.167 3.313 +1.53 + 5.7 18.3 21.8/ 76 27.3 7.9 209/0.36 152 .84 31 23 23.00 -23 25.5 23 25.64 -23 09.0 4.145 3.346 +1.47 + 5.2 18.3 21.1/ 76 32.5 9.2 215/0.42 87 .72 Apr. 10 23 37.77 -22 33.1 23 40.38 -22 16.5 4.111 3.379 +1.42 + 4.7 18.4 20.2/ 77 38.1 10.5 220/0.49 54 .02 20 23 51.95 -21 46.3 23 54.53 -21 29.6 4.067 3.413 +1.35 + 4.0 18.4 19.3/ 79 43.8 11.8 224/0.55 163 .86 30 00 05.50 -21 06.1 00 08.05 -20 49.4 4.012 3.448 +1.28 + 3.2 18.4 18.3/ 80 49.7 12.9 227/0.61 62 .66 May 10 00 18.35 -20 33.6 00 20.88 -20 17.0 3.948 3.483 +1.21 + 2.4 18.4 17.2/ 83 55.9 13.9 230/0.66 80 .05 20 00 30.44 -20 09.9 00 32.95 -19 53.3 3.876 3.519 +1.12 + 1.4 18.4 15.9/ 85 62.1 14.7 233/0.72 151 .88 30 00 41.68 -19 55.8 00 44.17 -19 39.4 3.798 3.556 +1.03 + 0.3 18.4 14.5/ 89 68.6 15.4 236/0.76 37 .58 June 9 00 51.98 -19 52.2 00 54.45 -19 36.0 3.714 3.593 +0.92 - 0.8 18.4 13.0/ 94 75.3 15.9 239/0.80 106 .07 19 01 01.20 -19 59.9 01 03.66 -19 43.8 3.626 3.631 +0.80 - 1.9 18.4 11.5/100 82.2 16.1 242/0.83 129 .90 29 01 09.24 -20 19.1 01 11.67 -20 03.2 3.537 3.669 +0.67 - 3.1 18.4 9.9/109 89.3 16.1 245/0.85 25 .49 July 9 01 15.93 -20 50.0 01 18.35 -20 34.2 3.450 3.707 +0.52 - 4.2 18.4 8.4/120 96.6 15.8 249/0.86 130 .09 19 01 21.12 -21 32.1 01 23.53 -21 16.4 3.365 3.746 +0.35 - 5.2 18.4 7.2/137 104.2 15.2 253/0.85 101 .92 29 01 24.68 -22 24.2 01 27.08 -22 08.6 3.288 3.785 +0.18 - 6.0 18.4 6.5/158 111.9 14.4 258/0.82 47 .40 Aug. 8 01 26.48 -23 24.4 01 28.86 -23 08.9 3.220 3.825 -0.01 - 6.5 18.4 6.5/181 119.6 13.3 264/0.77 147 .11 18 01 26.43 -24 29.7 01 28.80 -24 14.2 3.166 3.865 -0.19 - 6.6 18.4 7.1/201 127.3 12.0 272/0.71 70 .95 28 01 24.56 -25 36.1 01 26.93 -25 20.6 3.129 3.905 -0.36 - 6.3 18.4 7.9/217 134.6 10.6 282/0.63 81 .33 Sept. 7 01 20.98 -26 39.1 01 23.35 -26 23.4 3.112 3.945 -0.50 - 5.4 18.4 8.6/231 140.9 9.3 295/0.56 141 .13 17 01 15.97 -27 33.3 01 18.34 -27 17.6 3.117 3.986 -0.60 - 4.1 18.5 9.0/243 145.5 8.2 312/0.49 40 .98 27 01 09.95 -28 14.3 01 12.33 -27 58.4 3.146 4.027 -0.65 - 2.4 18.5 8.9/254 147.4 7.7 333/0.46 114 .28 Oct. 7 01 03.43 -28 38.2 01 05.83 -28 22.2 3.201 4.068 -0.64 - 0.5 18.6 8.5/266 146.0 7.9 353/0.46 115 .15 17 00 57.01 -28 43.1 00 59.42 -28 26.9 3.280 4.109 -0.58 + 1.5 18.7 7.8/280 141.7 8.6 11/0.50 36 1.00 27 00 51.21 -28 28.6 00 53.64 -28 12.3 3.382 4.150 -0.47 + 3.3 18.8 7.0/297 135.5 9.7 26/0.54 143 .25 Nov. 6 00 46.48 -27 56.0 00 48.93 -27 39.7 3.506 4.191 -0.33 + 4.8 18.9 6.6/317 128.1 10.7 36/0.58 83 .18 16 00 43.14 -27 07.6 00 45.59 -26 51.2 3.648 4.232 -0.18 + 6.1 19.1 6.6/338 120.2 11.7 45/0.60 63 1.00 26 00 41.32 -26 06.4 00 43.78 -25 49.9 3.805 4.274 -0.03 + 7.1 19.2 7.1/357 112.0 12.4 51/0.61 151 .24 Dec. 6 00 41.05 -24 55.0 00 43.52 -24 38.6 3.974 4.315 +0.12 + 7.9 19.3 8.0/ 12 103.8 12.8 57/0.61 52 .23 16 00 42.29 -23 36.4 00 44.76 -23 20.0 4.149 4.357 +0.26 + 8.4 19.5 9.1/ 24 95.6 13.0 62/0.59 94 .99 26 00 44.91 -22 12.9 00 47.38 -21 56.5 4.329 4.398 +0.39 + 8.7 19.6 10.2/ 32 87.5 12.9 66/0.57 136 .23 2025 Jan. 5 00 48.77 -20 46.3 00 51.24 -20 30.0 4.510 4.440 +0.49 + 8.8 19.7 11.2/ 39 79.6 12.6 70/0.53 27 .28 15 00 53.70 -19 18.2 00 56.17 -19 02.0 4.688 4.481 +0.59 + 8.8 19.9 12.1/ 44 71.9 12.0 73/0.49 122 .99 25 00 59.55 -17 50.1 01 02.02 -17 34.0 4.860 4.523 +0.66 + 8.7 20.0 12.9/ 48 64.4 11.3 77/0.44 113 .22 Feb. 4 01 06.19 -16 22.9 01 08.66 -16 06.9 5.025 4.564 +0.73 + 8.5 20.1 13.5/ 51 57.0 10.4 81/0.40 30 .35 14 01 13.46 -14 57.5 01 15.93 -14 41.6 5.179 4.605 +0.78 + 8.3 20.2 14.0/ 54 49.9 9.4 85/0.35 145 .98 24 01 21.26 -13 34.6 01 23.72 -13 18.9 5.320 4.646 +0.82 + 8.0 20.3 14.4/ 57 43.1 8.4 90/0.30 89 .19 Mar. 6 01 29.46 -12 14.8 01 31.93 -11 59.4 5.447 4.688 +0.85 + 7.6 20.4 14.6/ 59 36.6 7.2 97/0.26 55 .42 16 01 37.97 -10 58.8 01 40.45 -10 43.7 5.558 4.729 +0.87 + 7.2 20.5 14.7/ 61 30.5 6.1 105/0.21 158 .97 26 01 46.70 -09 47.0 01 49.18 -09 32.1 5.653 4.770 +0.89 + 6.7 20.5 14.8/ 63 25.2 5.1 117/0.17 64 .16

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