C/2021 K1 (ATLAS) Orbit by S. Nakano NK 4546 (2021) Observed in 1st half of 2022

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2021 May 4.41452 2.4978063 0.8030878 45.2 184.28117 140.90207 16.27576 0.200 2022 Aug. 9.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2022 Jan. 1 01 07.67 -10 16.3 01 10.17 -10 00.3 3.195 3.374 +0.73 + 7.8 17.8 13.3/ 54 91.9 16.9 66/0.99 116 .05 11 01 14.94 -08 57.9 01 17.44 -08 42.1 3.390 3.434 +0.82 + 8.1 18.0 14.6/ 57 84.3 16.6 69/0.91 24 .62 21 01 23.15 -07 37.0 01 25.66 -07 21.4 3.585 3.494 +0.90 + 8.2 18.2 15.7/ 59 76.8 15.9 71/0.83 138 .91 31 01 32.14 -06 15.3 01 34.66 -05 59.9 3.777 3.555 +0.97 + 8.1 18.4 16.5/ 61 69.6 15.1 74/0.75 85 .02 Feb. 10 01 41.79 -04 53.8 01 44.31 -04 38.8 3.965 3.617 +1.02 + 8.0 18.6 17.2/ 62 62.5 14.0 76/0.67 46 .63 20 01 51.95 -03 33.8 01 54.48 -03 19.1 4.147 3.679 +1.06 + 7.7 18.7 17.6/ 64 55.6 12.8 79/0.59 162 .88 Mar. 2 02 02.53 -02 16.1 02 05.07 -02 01.8 4.319 3.742 +1.09 + 7.4 18.9 18.0/ 66 48.8 11.5 82/0.51 57 .01 12 02 13.42 -01 01.5 02 15.98 -00 47.6 4.482 3.805 +1.11 + 7.0 19.1 18.1/ 67 42.2 10.1 86/0.43 68 .64 22 02 24.55 +00 09.4 02 27.11 +00 22.8 4.632 3.869 +1.13 + 6.6 19.2 18.2/ 69 35.8 8.7 90/0.36 161 .84 Apr. 1 02 35.82 +01 15.9 02 38.40 +01 28.9 4.770 3.933 +1.14 + 6.1 19.3 18.1/ 70 29.6 7.2 96/0.29 31 .00 11 02 47.18 +02 17.7 02 49.77 +02 30.1 4.893 3.997 +1.14 + 5.6 19.5 17.9/ 72 23.8 5.8 105/0.23 90 .66 21 02 58.54 +03 14.3 03 01.15 +03 26.2 5.001 4.061 +1.13 + 5.1 19.6 17.7/ 73 18.6 4.5 117/0.17 134 .77 May 1 03 09.85 +04 05.5 03 12.47 +04 16.7 5.093 4.126 +1.12 + 4.5 19.7 17.3/ 75 14.6 3.5 137/0.13 13 .00 11 03 21.03 +04 50.8 03 23.67 +05 01.4 5.168 4.191 +1.10 + 3.9 19.8 16.9/ 77 13.1 3.1 166/0.12 114 .69 21 03 32.02 +05 30.2 03 34.67 +05 40.2 5.226 4.256 +1.07 + 3.3 19.9 16.4/ 78 14.9 3.5 194/0.13 105 .70 31 03 42.76 +06 03.5 03 45.42 +06 12.9 5.266 4.321 +1.04 + 2.6 20.0 15.7/ 80 19.0 4.4 214/0.16 25 .00 June 10 03 53.16 +06 30.7 03 55.83 +06 39.4 5.290 4.386 +1.00 + 2.0 20.0 15.0/ 82 24.4 5.5 226/0.20 139 .74 20 04 03.15 +06 51.6 04 05.83 +06 59.7 5.296 4.451 +0.95 + 1.4 20.1 14.2/ 84 30.5 6.7 234/0.24 76 .62 30 04 12.66 +07 06.4 04 15.35 +07 13.8 5.286 4.516 +0.89 + 0.8 20.2 13.3/ 86 37.0 7.8 241/0.28 47 .01 July 10 04 21.59 +07 15.0 04 24.28 +07 21.9 5.260 4.581 +0.83 + 0.2 20.2 12.3/ 89 43.8 8.8 245/0.32 162 .80 20 04 29.84 +07 17.8 04 32.54 +07 24.1 5.219 4.646 +0.75 - 0.3 20.3 11.2/ 92 50.9 9.8 249/0.36 48 .56 30 04 37.34 +07 14.8 04 40.04 +07 20.6 5.165 4.711 +0.66 - 0.9 20.3 9.9/ 95 58.3 10.6 253/0.39 73 .02 Aug. 9 04 43.97 +07 06.4 04 46.66 +07 11.7 5.100 4.776 +0.56 - 1.4 20.3 8.5/ 99 65.9 11.2 256/0.42 151 .86 19 04 49.62 +06 53.0 04 52.31 +06 57.9 5.025 4.841 +0.46 - 1.8 20.4 7.0/105 73.8 11.6 258/0.44 25 .52 29 04 54.19 +06 35.0 04 56.88 +06 39.7 4.943 4.906 +0.34 - 2.2 20.4 5.5/114 82.0 11.8 261/0.45 101 .03 Sept. 8 04 57.58 +06 13.2 05 00.26 +06 17.6 4.858 4.970 +0.21 - 2.5 20.4 4.0/128 90.5 11.7 264/0.46 119 .92 18 04 59.70 +05 48.2 05 02.37 +05 52.5 4.773 5.035 +0.08 - 2.7 20.4 3.0/157 99.3 11.4 267/0.45 23 .49 28 05 00.49 +05 21.2 05 03.16 +05 25.4 4.692 5.099 -0.06 - 2.8 20.4 2.9/197 108.5 10.7 270/0.44 133 .05 Oct. 8 04 59.93 +04 53.1 05 02.59 +04 57.4 4.620 5.164 -0.19 - 2.7 20.5 3.9/226 117.9 9.8 274/0.41 84 .96 18 04 58.06 +04 25.5 05 00.70 +04 29.9 4.561 5.228 -0.31 - 2.6 20.5 5.3/241 127.5 8.7 278/0.36 48 .47 28 04 54.96 +03 59.7 04 57.60 +04 04.3 4.520 5.292 -0.41 - 2.2 20.5 6.6/250 137.2 7.3 285/0.31 158 .08 Nov. 7 04 50.83 +03 37.4 04 53.46 +03 42.3 4.501 5.356 -0.49 - 1.7 20.6 7.5/257 146.6 5.9 294/0.25 48 .98 17 04 45.92 +03 20.0 04 48.55 +03 25.2 4.508 5.420 -0.54 - 1.1 20.6 8.1/262 154.9 4.4 309/0.19 80 .46 27 04 40.56 +03 08.7 04 43.18 +03 14.3 4.543 5.483 -0.54 - 0.4 20.7 8.2/267 160.4 3.5 336/0.15 137 .13 Dec. 7 04 35.12 +03 04.4 04 37.74 +03 10.4 4.609 5.546 -0.52 + 0.3 20.8 7.7/273 160.3 3.4 10/0.14 21 .99 17 04 29.96 +03 07.5 04 32.58 +03 13.8 4.705 5.610 -0.46 + 1.1 20.9 6.9/279 154.6 4.3 36/0.18 115 .44 27 04 25.39 +03 17.9 04 28.01 +03 24.5 4.829 5.673 -0.37 + 1.7 21.0 5.8/287 146.1 5.5 51/0.22 99 .18 2023 Jan. 6 04 21.68 +03 34.9 04 24.30 +03 41.8 4.980 5.735 -0.27 + 2.3 21.1 4.6/300 136.7 6.8 60/0.26 36 .99 16 04 19.00 +03 57.7 04 21.64 +04 04.8 5.153 5.798 -0.15 + 2.8 21.2 3.6/320 127.0 7.8 67/0.29 148 .41 26 04 17.46 +04 25.3 04 20.10 +04 32.4 5.345 5.860 -0.04 + 3.1 21.3 3.2/350 117.2 8.6 71/0.31 62 .23 Feb. 5 04 17.09 +04 56.3 04 19.74 +05 03.5 5.549 5.923 +0.08 + 3.3 21.4 3.5/ 19 107.6 9.1 75/0.32 66 .99 15 04 17.85 +05 29.7 04 20.51 +05 36.8 5.763 5.985 +0.18 + 3.5 21.6 4.4/ 38 98.2 9.4 78/0.31 160 .36 25 04 19.67 +06 04.4 04 22.34 +06 11.4 5.981 6.046 +0.28 + 3.5 21.7 5.5/ 50 89.0 9.4 80/0.30 30 .27 Mar. 7 04 22.48 +06 39.5 04 25.16 +06 46.3 6.199 6.108 +0.37 + 3.4 21.8 6.5/ 58 80.1 9.2 83/0.29 95 1.00 17 04 26.14 +07 14.1 04 28.84 +07 20.7 6.413 6.169 +0.44 + 3.3 21.9 7.4/ 63 71.4 8.8 86/0.26 132 .29 27 04 30.57 +07 47.5 04 33.28 +07 53.8 6.620 6.231 +0.51 + 3.1 22.0 8.2/ 67 63.0 8.2 89/0.24 18 .30 Apr. 6 04 35.65 +08 19.2 04 38.36 +08 25.1 6.815 6.292 +0.56 + 2.9 22.2 8.8/ 71 54.8 7.5 92/0.21 124 1.00 16 04 41.25 +08 48.6 04 43.97 +08 54.1 6.997 6.352 +0.60 + 2.6 22.3 9.3/ 73 46.8 6.6 95/0.18 99 .22 26 04 47.28 +09 15.4 04 50.02 +09 20.5 7.164 6.413 +0.64 + 2.3 22.3 9.7/ 76 39.0 5.7 100/0.15 37 .32 May 6 04 53.65 +09 39.2 04 56.39 +09 43.9 7.312 6.473 +0.66 + 2.0 22.4 10.0/ 78 31.5 4.7 106/0.12 151 1.00 16 05 00.24 +09 59.9 05 02.99 +10 04.1 7.440 6.533 +0.67 + 1.7 22.5 10.1/ 80 24.4 3.7 114/0.09 67 .15

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