C/2021 P4 (ATLAS) Orbit by S. Nakano NK 4773 (2022) Last obs. 2022 07 22 (349)

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 July 30.33792 1.0796302 0.9963752 175.79611 348.06877 56.32387 0.200 2024 Mar. 31.0 m1 = 7.0 + 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 21 19.97 -55 29.2 21 23.56 -55 16.3 6.701 6.104 +0.86 + 7.1 19.0 10.3/ 47 49.2 7.0 109/0.20 86 .74 2024 Jan. 1 21 28.65 -54 18.3 21 32.15 -54 05.1 6.858 6.193 +0.88 + 6.6 19.1 10.2/ 51 44.3 6.4 117/0.18 137 .78 11 21 37.56 -53 13.0 21 40.97 -52 59.3 6.999 6.281 +0.89 + 6.0 19.2 10.1/ 54 40.3 5.8 127/0.16 39 .01 21 21 46.54 -52 13.3 21 49.88 -51 59.3 7.122 6.369 +0.89 + 5.4 19.3 9.9/ 58 37.4 5.4 139/0.15 112 .79 31 21 55.50 -51 19.7 21 58.77 -51 05.4 7.226 6.456 +0.88 + 4.8 19.4 9.6/ 61 36.0 5.2 152/0.14 118 .77 Feb. 10 22 04.32 -50 32.4 22 07.52 -50 17.7 7.310 6.542 +0.85 + 4.1 19.5 9.2/ 64 36.4 5.1 165/0.14 32 .00 20 22 12.91 -49 51.7 22 16.06 -49 36.7 7.375 6.628 +0.82 + 3.4 19.6 8.7/ 68 38.3 5.3 178/0.14 135 .82 Mar. 1 22 21.20 -49 18.0 22 24.29 -49 02.7 7.421 6.714 +0.78 + 2.7 19.6 8.2/ 72 41.7 5.6 189/0.15 95 .75 11 22 29.09 -48 51.5 22 32.14 -48 36.1 7.448 6.799 +0.74 + 1.9 19.7 7.6/ 76 46.3 6.1 199/0.16 51 .01 21 22 36.51 -48 32.8 22 39.51 -48 17.1 7.457 6.884 +0.68 + 1.1 19.7 6.9/ 81 51.7 6.5 207/0.17 148 .84 31 22 43.36 -48 21.9 22 46.33 -48 06.1 7.451 6.968 +0.62 + 0.3 19.8 6.2/ 88 57.7 7.0 214/0.18 70 .72 Apr. 10 22 49.57 -48 19.3 22 52.50 -48 03.3 7.431 7.052 +0.54 - 0.5 19.8 5.5/ 96 64.2 7.3 220/0.19 79 .02 20 22 55.03 -48 24.9 22 57.94 -48 08.8 7.400 7.136 +0.46 - 1.4 19.9 4.8/107 71.0 7.6 226/0.20 139 .86 30 22 59.65 -48 38.7 23 02.54 -48 22.5 7.360 7.219 +0.37 - 2.2 19.9 4.2/121 78.0 7.8 231/0.21 45 .66 May 10 23 03.33 -49 00.5 23 06.20 -48 44.2 7.315 7.302 +0.26 - 2.9 20.0 3.9/139 85.3 7.9 236/0.21 107 .05 20 23 05.96 -49 29.7 23 08.81 -49 13.5 7.268 7.384 +0.15 - 3.6 20.0 3.9/159 92.6 7.9 242/0.21 118 .88 30 23 07.42 -50 05.6 23 10.27 -49 49.3 7.223 7.466 +0.02 - 4.1 20.0 4.1/177 100.0 7.7 248/0.21 37 .58 June 9 23 07.62 -50 47.0 23 10.48 -50 30.7 7.183 7.547 -0.11 - 4.5 20.1 4.6/193 107.3 7.4 255/0.20 132 .07 19 23 06.46 -51 32.1 23 09.34 -51 15.8 7.152 7.629 -0.25 - 4.7 20.1 5.3/206 114.4 7.0 262/0.19 91 .90 29 23 03.91 -52 19.1 23 06.81 -52 02.8 7.135 7.709 -0.39 - 4.7 20.1 5.9/217 121.1 6.5 271/0.18 58 .49 July 9 22 59.96 -53 05.5 23 02.89 -52 49.3 7.133 7.790 -0.52 - 4.3 20.2 6.4/227 127.2 6.0 282/0.16 141 .09 19 22 54.66 -53 48.8 22 57.64 -53 32.7 7.150 7.870 -0.64 - 3.8 20.2 6.8/236 132.3 5.5 295/0.15 62 .92 29 22 48.20 -54 26.4 22 51.23 -54 10.5 7.189 7.950 -0.73 - 3.0 20.3 7.1/244 135.9 5.1 310/0.14 91 .40 Aug. 8 22 40.80 -54 56.0 22 43.88 -54 40.3 7.251 8.029 -0.79 - 2.0 20.3 7.1/253 137.6 4.9 327/0.13 127 .11 18 22 32.82 -55 15.6 22 35.96 -55 00.0 7.337 8.108 -0.81 - 0.9 20.4 7.0/262 137.2 4.9 344/0.13 40 .95 28 22 24.66 -55 24.1 22 27.86 -55 08.7 7.446 8.187 -0.79 + 0.3 20.5 6.8/272 134.6 5.0 360/0.13 123 .33 Sept. 7 22 16.73 -55 21.0 22 19.98 -55 05.9 7.579 8.266 -0.73 + 1.4 20.6 6.4/282 130.2 5.3 14/0.14 101 .13 17 22 09.44 -55 06.7 22 12.73 -54 51.9 7.732 8.344 -0.63 + 2.4 20.7 6.0/293 124.6 5.7 27/0.14 45 .98 27 22 03.10 -54 42.3 22 06.42 -54 27.7 7.904 8.421 -0.51 + 3.3 20.7 5.6/306 118.0 6.0 37/0.15 144 .28 Oct. 7 21 57.94 -54 09.2 22 01.28 -53 54.8 8.092 8.499 -0.38 + 4.0 20.8 5.3/319 110.8 6.3 46/0.15 73 .15 17 21 54.10 -53 29.2 21 57.43 -53 14.8 8.292 8.576 -0.25 + 4.5 20.9 5.1/333 103.3 6.5 54/0.15 72 1.00 27 21 51.59 -52 43.8 21 54.92 -52 29.6 8.500 8.653 -0.12 + 4.9 21.0 5.0/347 95.6 6.6 61/0.15 140 .25 Nov. 6 21 50.40 -51 54.9 21 53.71 -51 40.7 8.713 8.730 0.00 + 5.1 21.1 5.1/ 0 87.7 6.5 67/0.15 46 .18 16 21 50.44 -51 03.7 21 53.73 -50 49.5 8.925 8.806 +0.11 + 5.2 21.2 5.3/ 12 79.9 6.3 73/0.14 104 1.00 26 21 51.58 -50 11.6 21 54.84 -49 57.4 9.134 8.882 +0.21 + 5.2 21.3 5.6/ 22 72.2 6.1 79/0.13 119 .24 Dec. 6 21 53.70 -49 19.6 21 56.93 -49 05.4 9.336 8.958 +0.29 + 5.1 21.4 5.9/ 30 64.6 5.7 84/0.12 30 .23 16 21 56.65 -48 28.7 21 59.85 -48 14.3 9.527 9.033 +0.36 + 4.9 21.5 6.1/ 37 57.3 5.3 91/0.11 132 .99 26 22 00.29 -47 39.5 22 03.45 -47 24.9 9.704 9.108 +0.42 + 4.7 21.5 6.3/ 43 50.3 4.8 98/0.10 94 .23 2025 Jan. 5 22 04.49 -46 52.6 22 07.62 -46 37.9 9.865 9.183 +0.46 + 4.4 21.6 6.5/ 48 44.0 4.3 106/0.09 44 .28 15 22 09.13 -46 08.7 22 12.22 -45 53.8 10.006 9.258 +0.49 + 4.1 21.7 6.6/ 52 38.6 3.8 117/0.08 150 .99 25 22 14.07 -45 28.1 22 17.12 -45 13.1 10.127 9.332 +0.51 + 3.7 21.7 6.6/ 56 34.4 3.4 129/0.07 69 .22 Feb. 4 22 19.20 -44 51.4 22 22.23 -44 36.2 10.226 9.406 +0.52 + 3.3 21.8 6.5/ 60 32.1 3.2 144/0.06 73 .35 14 22 24.43 -44 18.9 22 27.42 -44 03.6 10.303 9.480 +0.52 + 2.8 21.8 6.3/ 64 32.0 3.2 160/0.06 144 .98 24 22 29.65 -43 51.0 22 32.61 -43 35.5 10.358 9.553 +0.51 + 2.3 21.9 6.0/ 68 34.0 3.3 176/0.06 45 .19 Mar. 6 22 34.77 -43 28.0 22 37.71 -43 12.4 10.390 9.627 +0.49 + 1.8 21.9 5.7/ 72 37.9 3.6 189/0.07 104 .42 16 22 39.70 -43 10.3 22 42.61 -42 54.6 10.401 9.700 +0.46 + 1.2 22.0 5.2/ 77 43.2 4.0 200/0.07 122 .97 26 22 44.35 -42 58.0 22 47.24 -42 42.2 10.393 9.773 +0.43 + 0.7 22.0 4.8/ 82 49.3 4.4 209/0.08 30 .16

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