C/2023 Q2 (PANSTARRS) Orbit by S. Nakano NK 5121 (2023) Observed in 2nd half of 2023

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2024 June 24.06386 3.2094537 0.9907529 171.72037 92.67947 104.05710 0.200 2024 Mar. 31.0 m1 = 12.0 + 5 log Delta + 8.0 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 18 40.26 +15 05.5 18 42.52 +15 08.5 4.352 3.655 +0.80 - 9.7 19.7 15.1/130 40.1 10.0 16/0.44 101 .74 2024 Jan. 1 18 48.19 +13 28.3 18 50.49 +13 31.9 4.352 3.611 +0.80 - 8.4 19.7 14.3/126 36.7 9.4 3/0.41 118 .78 11 18 56.12 +12 03.9 18 58.45 +12 08.1 4.333 3.570 +0.78 - 7.2 19.6 13.6/122 34.8 9.0 349/0.40 40 .01 21 19 03.90 +10 51.0 19 06.25 +10 55.7 4.294 3.530 +0.75 - 6.3 19.5 12.7/119 34.7 9.1 333/0.40 124 .79 31 19 11.38 +09 48.0 19 13.76 +09 53.2 4.234 3.492 +0.71 - 5.4 19.5 11.8/117 36.5 9.7 319/0.43 101 .77 Feb. 10 19 18.43 +08 53.3 19 20.83 +08 59.0 4.153 3.456 +0.65 - 4.8 19.4 10.7/116 40.1 10.6 306/0.48 44 .00 20 19 24.89 +08 05.3 19 27.30 +08 11.4 4.050 3.423 +0.57 - 4.3 19.3 9.5/117 45.0 11.8 295/0.55 142 .82 Mar. 1 19 30.58 +07 21.8 19 33.01 +07 28.4 3.927 3.391 +0.48 - 4.0 19.2 8.2/120 50.9 13.1 286/0.63 79 .75 11 19 35.33 +06 41.0 19 37.77 +06 47.9 3.785 3.362 +0.36 - 4.0 19.1 6.7/127 57.8 14.5 279/0.72 66 .01 21 19 38.90 +06 00.4 19 41.36 +06 07.5 3.626 3.335 +0.22 - 4.3 19.0 5.4/143 65.3 15.7 273/0.81 145 .84 31 19 41.06 +05 17.0 19 43.53 +05 24.3 3.454 3.310 +0.05 - 4.9 18.9 5.0/172 73.4 16.8 267/0.91 53 .72 Apr. 10 19 41.51 +04 27.8 19 43.99 +04 35.0 3.271 3.288 -0.16 - 5.9 18.7 6.4/202 82.2 17.6 263/1.00 97 .02 20 19 39.92 +03 28.7 19 42.42 +03 35.8 3.083 3.269 -0.40 - 7.4 18.6 9.5/219 91.6 17.9 258/1.08 126 .86 30 19 35.92 +02 15.1 19 38.44 +02 22.0 2.894 3.252 -0.68 - 9.3 18.4 13.8/227 101.7 17.7 254/1.13 29 .66 May 10 19 29.13 +00 42.2 19 31.68 +00 48.6 2.712 3.238 -0.99 -11.8 18.2 19.0/232 112.7 16.7 251/1.14 132 .05 20 19 19.20 -01 15.1 19 21.79 -01 09.4 2.545 3.227 -1.32 -14.6 18.1 24.6/233 124.4 15.0 246/1.08 94 .88 30 19 05.95 -03 40.4 19 08.58 -03 35.6 2.401 3.218 -1.65 -17.5 18.0 30.2/234 137.1 12.4 241/0.95 46 .58 June 9 18 49.44 -06 34.4 18 52.13 -06 30.7 2.291 3.213 -1.92 -19.9 17.9 34.7/235 150.3 9.0 234/0.72 158 .07 19 18 30.22 -09 52.2 18 32.97 -09 49.9 2.224 3.210 -2.08 -21.3 17.8 37.3/235 163.1 5.3 215/0.44 50 .90 29 18 09.33 -13 23.4 18 12.15 -13 22.6 2.206 3.210 -2.11 -21.2 17.8 37.2/235 169.1 3.4 155/0.29 96 .49 July 9 17 48.18 -16 54.1 17 51.08 -16 54.8 2.239 3.213 -1.98 -19.9 17.8 34.5/234 159.9 6.3 109/0.51 124 .09 19 17 28.31 -20 11.5 17 31.28 -20 13.7 2.321 3.218 -1.73 -17.8 17.9 30.0/233 146.6 10.0 97/0.79 8 .92 29 17 10.91 -23 08.2 17 13.94 -23 11.6 2.444 3.227 -1.42 -15.5 18.0 24.8/231 133.4 13.2 94/0.99 148 .40 Aug. 8 16 56.70 -25 42.4 16 59.78 -25 46.9 2.600 3.238 -1.07 -13.5 18.2 19.7/226 120.8 15.6 94/1.10 82 .11 18 16 45.93 -27 56.7 16 49.05 -28 01.9 2.778 3.252 -0.74 -11.9 18.3 15.3/219 109.0 17.1 95/1.14 46 .95 28 16 38.46 -29 54.8 16 41.63 -30 00.5 2.971 3.269 -0.44 -10.7 18.5 12.1/208 98.0 17.8 97/1.11 168 .33 Sept. 7 16 34.02 -31 41.0 16 37.22 -31 47.0 3.169 3.288 -0.18 - 9.8 18.6 10.0/193 87.8 17.8 99/1.05 46 .13 17 16 32.22 -33 18.9 16 35.47 -33 25.0 3.368 3.310 +0.05 - 9.2 18.8 9.2/176 78.1 17.3 101/0.96 86 .98 27 16 32.70 -34 51.1 16 35.99 -34 57.2 3.560 3.334 +0.25 - 8.9 18.9 9.4/161 69.0 16.3 103/0.86 132 .28 Oct. 7 16 35.12 -36 19.9 16 38.45 -36 25.8 3.742 3.361 +0.41 - 8.7 19.1 10.0/151 60.3 15.0 106/0.75 16 .15 17 16 39.19 -37 46.7 16 42.56 -37 52.4 3.909 3.391 +0.55 - 8.6 19.2 10.7/143 52.2 13.4 110/0.65 122 1.00 27 16 44.64 -39 12.9 16 48.06 -39 18.2 4.060 3.422 +0.67 - 8.6 19.3 11.5/139 44.5 11.7 115/0.55 102 .25 Nov. 6 16 51.27 -40 39.4 16 54.75 -40 44.2 4.190 3.456 +0.77 - 8.7 19.4 12.3/136 37.4 10.0 122/0.46 21 .18 16 16 58.89 -42 07.0 17 02.43 -42 11.3 4.300 3.492 +0.85 - 8.9 19.5 12.9/134 31.2 8.4 131/0.38 152 1.00 26 17 07.33 -43 36.6 17 10.93 -43 40.3 4.387 3.529 +0.92 - 9.2 19.6 13.5/134 26.3 7.1 145/0.31 76 .24 Dec. 6 17 16.47 -45 09.1 17 20.13 -45 12.1 4.451 3.569 +0.97 - 9.5 19.7 13.9/134 23.5 6.3 162/0.27 50 .23 16 17 26.15 -46 45.2 17 29.88 -46 47.5 4.492 3.611 +1.02 -10.0 19.7 14.3/135 23.5 6.2 182/0.27 160 .99 26 17 36.25 -48 25.9 17 40.06 -48 27.5 4.510 3.654 +1.05 -10.6 19.8 14.7/137 26.3 6.8 200/0.29 52 .23 2025 Jan. 5 17 46.66 -50 12.4 17 50.56 -50 13.2 4.507 3.699 +1.07 -11.3 19.8 15.1/139 31.0 7.9 214/0.33 81 .28 15 17 57.23 -52 05.7 18 01.23 -52 05.7 4.484 3.746 +1.07 -12.1 19.8 15.4/142 37.0 9.1 223/0.39 137 .99 25 18 07.85 -54 07.1 18 11.95 -54 06.3 4.443 3.794 +1.06 -13.0 19.9 15.9/146 43.8 10.3 230/0.44 33 .22 Feb. 4 18 18.36 -56 17.9 18 22.58 -56 16.4 4.388 3.843 +1.04 -14.1 19.9 16.4/150 50.9 11.5 235/0.50 111 .35 14 18 28.56 -58 39.4 18 32.93 -58 37.2 4.321 3.894 +0.99 -15.3 19.9 17.0/155 58.3 12.5 240/0.55 110 .98 24 18 38.24 -61 12.8 18 42.80 -61 09.9 4.246 3.946 +0.91 -16.6 19.9 17.7/160 65.9 13.2 244/0.59 33 .19 Mar. 6 18 47.07 -63 59.0 18 51.86 -63 55.4 4.168 3.999 +0.78 -17.9 19.9 18.5/166 73.4 13.8 248/0.62 135 .42 16 18 54.57 -66 58.2 18 59.66 -66 54.0 4.091 4.054 +0.58 -19.1 19.9 19.4/171 80.8 14.0 253/0.65 85 .97 26 18 59.94 -70 09.9 19 05.47 -70 05.4 4.020 4.109 +0.24 -20.2 19.9 20.3/177 88.0 14.0 258/0.66 56 .16

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