C/2020 U4 (PANSTARRS) Orbit by S. Nakano NK 4834 (2022) Observed in 2nd half of 2023

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 Apr. 9.53292 5.3601220 1.0004814 70.08698 120.35850 167.01707 0.200 2024 Mar. 31.0 m1 = 8.5 + 5 log Delta + 7.5 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 22 42.47 +02 31.3 22 45.02 +02 47.1 7.197 6.999 +0.02 - 1.9 19.1 2.0/171 74.5 7.8 65/0.21 45 .74 2024 Jan. 1 22 42.66 +02 11.9 22 45.21 +02 27.7 7.413 7.043 +0.09 - 1.3 19.2 1.9/133 64.4 7.2 63/0.19 165 .78 11 22 43.58 +01 59.3 22 46.13 +02 15.1 7.614 7.088 +0.15 - 0.7 19.3 2.4/106 54.5 6.5 61/0.17 62 .01 21 22 45.09 +01 52.5 22 47.64 +02 08.4 7.798 7.134 +0.20 - 0.2 19.4 3.0/ 93 44.8 5.6 58/0.14 81 .79 31 22 47.06 +01 50.9 22 49.61 +02 06.8 7.960 7.179 +0.23 + 0.3 19.4 3.5/ 85 35.3 4.6 55/0.11 155 .77 Feb. 10 22 49.36 +01 53.7 22 51.91 +02 09.6 8.098 7.225 +0.25 + 0.6 19.5 3.8/ 80 26.1 3.4 49/0.08 27 .00 20 22 51.88 +02 00.0 22 54.43 +02 16.0 8.208 7.271 +0.26 + 0.9 19.5 4.0/ 77 17.4 2.3 39/0.06 113 .82 Mar. 1 22 54.49 +02 09.0 22 57.04 +02 25.0 8.291 7.318 +0.26 + 1.1 19.6 4.1/ 74 10.3 1.4 12/0.03 126 .75 11 22 57.10 +02 20.0 22 59.64 +02 36.1 8.344 7.364 +0.25 + 1.2 19.6 3.9/ 72 9.0 1.2 315/0.03 16 .01 21 22 59.58 +02 32.3 23 02.13 +02 48.4 8.368 7.411 +0.23 + 1.3 19.6 3.6/ 69 15.2 2.0 280/0.05 144 .84 31 23 01.86 +02 45.0 23 04.41 +03 01.2 8.364 7.458 +0.20 + 1.3 19.7 3.2/ 67 23.5 3.1 267/0.07 95 .72 Apr. 10 23 03.82 +02 57.5 23 06.37 +03 13.8 8.333 7.506 +0.16 + 1.2 19.7 2.6/ 64 32.3 4.1 260/0.10 49 .02 20 23 05.37 +03 09.1 23 07.92 +03 25.3 8.278 7.553 +0.11 + 1.0 19.7 1.9/ 58 41.4 5.0 256/0.12 169 .86 30 23 06.43 +03 18.9 23 08.97 +03 35.2 8.200 7.601 +0.05 + 0.7 19.7 1.0/ 43 50.6 5.9 254/0.14 60 .66 May 10 23 06.89 +03 26.3 23 09.44 +03 42.6 8.103 7.649 -0.02 + 0.4 19.7 0.5/324 60.0 6.6 252/0.16 84 .05 20 23 06.69 +03 30.5 23 09.24 +03 46.8 7.992 7.697 -0.10 0.0 19.7 1.4/271 69.6 7.1 250/0.17 150 .88 30 23 05.74 +03 30.9 23 08.28 +03 47.1 7.870 7.746 -0.18 - 0.4 19.6 2.7/261 79.3 7.4 249/0.18 24 .58 June 9 23 03.98 +03 26.7 23 06.53 +03 42.9 7.743 7.794 -0.26 - 0.9 19.6 4.0/256 89.2 7.5 247/0.19 119 .07 19 23 01.37 +03 17.3 23 03.91 +03 33.5 7.615 7.843 -0.35 - 1.5 19.6 5.4/254 99.3 7.3 246/0.19 118 .90 29 22 57.89 +03 02.3 23 00.43 +03 18.4 7.493 7.892 -0.43 - 2.1 19.6 6.8/252 109.6 7.0 244/0.18 23 .49 July 9 22 53.55 +02 41.2 22 56.09 +02 57.3 7.383 7.941 -0.51 - 2.7 19.6 8.2/251 120.1 6.4 242/0.17 153 .09 19 22 48.40 +02 14.1 22 50.95 +02 30.0 7.290 7.991 -0.58 - 3.3 19.6 9.4/249 130.8 5.5 240/0.15 81 .92 29 22 42.55 +01 41.0 22 45.10 +01 56.8 7.219 8.040 -0.64 - 3.9 19.6 10.3/248 141.6 4.5 236/0.12 64 .40 Aug. 8 22 36.15 +01 02.5 22 38.70 +01 18.2 7.177 8.090 -0.68 - 4.3 19.6 11.0/247 152.4 3.3 230/0.09 163 .11 18 22 29.37 +00 19.7 22 31.93 +00 35.1 7.167 8.140 -0.69 - 4.6 19.6 11.4/246 162.8 2.1 217/0.06 41 .95 28 22 22.45 -00 26.3 22 25.01 -00 11.1 7.192 8.190 -0.68 - 4.8 19.6 11.3/245 170.4 1.2 177/0.03 106 .33 Sept. 7 22 15.61 -01 14.1 22 18.18 -00 59.1 7.252 8.240 -0.65 - 4.8 19.7 10.9/244 167.7 1.5 113/0.04 129 .13 17 22 09.09 -02 02.0 22 11.67 -01 47.1 7.348 8.290 -0.60 - 4.7 19.7 10.1/242 158.2 2.6 91/0.07 12 .98 27 22 03.10 -02 48.5 22 05.68 -02 33.8 7.478 8.340 -0.53 - 4.4 19.8 9.1/241 147.5 3.7 82/0.10 145 .28 Oct. 7 21 57.79 -03 32.3 22 00.38 -03 17.8 7.637 8.391 -0.45 - 4.0 19.8 7.8/239 136.5 4.7 78/0.12 92 .15 17 21 53.30 -04 12.3 21 55.90 -03 58.0 7.823 8.441 -0.36 - 3.6 19.9 6.5/237 125.5 5.5 75/0.14 48 1.00 27 21 49.69 -04 47.7 21 52.30 -04 33.6 8.028 8.492 -0.27 - 3.1 20.0 5.1/233 114.7 6.1 73/0.15 168 .25 Nov. 6 21 46.98 -05 18.1 21 49.60 -05 04.1 8.248 8.542 -0.18 - 2.5 20.1 3.7/227 104.0 6.5 72/0.15 55 .18 16 21 45.17 -05 43.3 21 47.79 -05 29.4 8.477 8.593 -0.10 - 2.0 20.1 2.5/216 93.5 6.6 70/0.15 87 1.00 26 21 44.21 -06 03.3 21 46.83 -05 49.4 8.707 8.644 -0.02 - 1.5 20.2 1.5/191 83.1 6.5 69/0.15 141 .24 Dec. 6 21 44.02 -06 18.3 21 46.65 -06 04.4 8.934 8.695 +0.05 - 1.0 20.3 1.3/144 72.9 6.2 68/0.14 20 .23 16 21 44.52 -06 28.5 21 47.15 -06 14.6 9.151 8.747 +0.11 - 0.6 20.4 1.7/110 62.9 5.7 66/0.12 124 .99 26 21 45.61 -06 34.4 21 48.24 -06 20.4 9.354 8.798 +0.16 - 0.2 20.4 2.4/ 95 53.0 5.1 65/0.11 110 .23 2025 Jan. 5 21 47.20 -06 36.4 21 49.83 -06 22.4 9.539 8.849 +0.20 + 0.1 20.5 2.9/ 87 43.3 4.4 62/0.09 22 .28 15 21 49.17 -06 35.0 21 51.80 -06 20.9 9.702 8.901 +0.23 + 0.4 20.6 3.4/ 83 33.7 3.5 59/0.07 157 .99 25 21 51.43 -06 30.8 21 54.05 -06 16.6 9.840 8.952 +0.24 + 0.7 20.6 3.7/ 80 24.3 2.6 54/0.05 79 .22 Feb. 4 21 53.87 -06 24.2 21 56.50 -06 10.0 9.951 9.004 +0.25 + 0.8 20.6 3.9/ 77 15.2 1.6 45/0.03 58 .35 14 21 56.40 -06 15.9 21 59.02 -06 01.5 10.033 9.055 +0.25 + 1.0 20.7 3.9/ 76 7.4 0.8 17/0.02 166 .98 24 21 58.92 -06 06.4 22 01.54 -05 51.9 10.087 9.107 +0.24 + 1.0 20.7 3.8/ 74 7.6 0.8 309/0.02 48 .19 Mar. 6 22 01.34 -05 56.2 22 03.96 -05 41.7 10.111 9.159 +0.22 + 1.0 20.7 3.5/ 73 15.4 1.6 277/0.03 95 .42 16 22 03.58 -05 46.0 22 06.19 -05 31.4 10.108 9.211 +0.20 + 1.0 20.8 3.1/ 71 24.4 2.6 266/0.05 137 .97 26 22 05.54 -05 36.3 22 08.15 -05 21.6 10.077 9.262 +0.16 + 0.9 20.8 2.6/ 70 33.6 3.4 261/0.07 17 .16

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