C/2021 P4 (ATLAS) Orbit by S. Nakano NK 4773 (2022) Observed in 1st half of 2023
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 July 30.34196 1.0801060 0.9964455 175.80246 348.08653 56.31304 0.200 2023 Sep. 13.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2022 Dec. 27 17 43.09 -64 33.4 17 47.99 -64 34.4 3.114 2.467 +4.51 - 2.5 13.4 28.9/100 41.6 15.3 191/0.92 62 .18 2023 Jan. 6 18 28.14 -65 01.6 18 33.07 -64 59.3 3.217 2.582 +4.23 + 0.3 13.7 26.8/ 94 42.7 15.0 191/0.87 142 .99 16 19 10.53 -65 01.2 19 15.36 -64 55.9 3.313 2.697 +3.87 + 2.3 13.9 24.8/ 89 44.2 14.7 191/0.83 72 .41 26 19 49.40 -64 40.5 19 54.04 -64 32.7 3.403 2.811 +3.48 + 3.5 14.1 22.9/ 85 46.1 14.6 192/0.80 78 .23 Feb. 5 20 24.42 -64 07.3 20 28.82 -63 57.4 3.484 2.924 +3.10 + 4.1 14.4 21.1/ 82 48.4 14.6 194/0.78 139 .99 15 20 55.70 -63 28.4 20 59.85 -63 16.7 3.556 3.036 +2.76 + 4.1 14.6 19.3/ 81 51.2 14.7 196/0.77 56 .36 25 21 23.56 -62 49.2 21 27.47 -62 36.1 3.618 3.147 +2.46 + 3.6 14.8 17.5/ 81 54.4 14.8 199/0.77 96 .27 Mar. 7 21 48.35 -62 14.1 21 52.04 -62 00.0 3.670 3.257 +2.19 + 2.8 15.0 15.8/ 82 58.1 15.0 202/0.77 129 1.00 17 22 10.43 -61 46.4 22 13.93 -61 31.5 3.712 3.367 +1.95 + 1.8 15.1 14.1/ 85 62.3 15.2 206/0.77 44 .29 27 22 30.09 -61 28.8 22 33.42 -61 13.3 3.745 3.475 +1.73 + 0.6 15.3 12.5/ 89 66.8 15.3 209/0.77 113 .30 Apr. 6 22 47.53 -61 23.2 22 50.71 -61 07.2 3.769 3.583 +1.52 - 0.7 15.4 11.0/ 96 71.7 15.4 213/0.77 111 1.00 16 23 02.87 -61 30.9 23 05.92 -61 14.7 3.787 3.689 +1.32 - 2.2 15.6 9.7/105 76.8 15.4 218/0.76 46 .22 26 23 16.15 -61 53.1 23 19.09 -61 36.6 3.798 3.795 +1.10 - 3.7 15.7 8.6/116 82.2 15.2 222/0.75 127 .32 May 6 23 27.29 -62 30.0 23 30.14 -62 13.4 3.807 3.900 +0.88 - 5.1 15.8 7.9/131 87.7 15.0 227/0.74 89 1.00 16 23 36.15 -63 21.3 23 38.92 -63 04.7 3.815 4.003 +0.62 - 6.5 15.9 7.7/148 93.4 14.6 233/0.72 65 .15 26 23 42.42 -64 26.3 23 45.15 -64 09.7 3.824 4.106 +0.33 - 7.7 16.0 7.9/165 99.0 14.1 240/0.69 130 .35 June 5 23 45.71 -65 42.9 23 48.41 -65 26.2 3.839 4.209 -0.02 - 8.5 16.2 8.5/181 104.5 13.5 247/0.66 66 .99 15 23 45.47 -67 07.9 23 48.19 -66 51.2 3.861 4.310 -0.44 - 8.9 16.3 9.3/195 109.7 12.8 257/0.63 91 .10 25 23 41.02 -68 37.0 23 43.80 -68 20.3 3.894 4.411 -0.92 - 8.7 16.4 10.0/208 114.3 12.1 268/0.59 119 .37 July 5 23 31.66 -70 04.0 23 34.58 -69 47.4 3.940 4.511 -1.45 - 7.8 16.5 10.7/221 118.2 11.5 280/0.55 53 .96 15 23 16.89 -71 21.7 23 20.04 -71 05.3 4.002 4.610 -1.98 - 6.1 16.6 11.2/235 121.1 10.9 296/0.52 115 .07 25 22 56.77 -72 21.9 23 00.25 -72 05.8 4.081 4.708 -2.39 - 3.6 16.8 11.4/249 122.7 10.5 312/0.49 97 .41 Aug. 4 22 32.48 -72 56.9 22 36.35 -72 41.4 4.179 4.805 -2.57 - 0.6 16.9 11.5/264 122.8 10.2 331/0.46 63 .92 14 22 06.40 -73 02.0 22 10.65 -72 47.3 4.296 4.902 -2.46 + 2.4 17.1 11.3/280 121.5 10.1 349/0.45 130 .05 24 21 41.49 -72 36.6 21 46.03 -72 22.8 4.431 4.999 -2.11 + 5.1 17.2 11.0/295 118.9 10.2 7/0.44 71 .46 Sept. 3 21 20.27 -71 44.4 21 24.96 -71 31.5 4.584 5.094 -1.63 + 7.2 17.4 10.7/310 115.1 10.3 22/0.43 88 .88 13 21 03.99 -70 31.8 21 08.71 -70 19.6 4.752 5.189 -1.12 + 8.6 17.5 10.4/324 110.4 10.5 36/0.42 126 .04 23 20 52.82 -69 05.3 20 57.47 -68 53.7 4.934 5.283 -0.67 + 9.4 17.7 10.1/338 105.0 10.6 47/0.41 47 .52 Oct. 3 20 46.23 -67 30.7 20 50.78 -67 19.5 5.127 5.377 -0.29 + 9.8 17.9 10.0/350 99.1 10.6 57/0.40 115 .84 13 20 43.45 -65 52.6 20 47.87 -65 41.5 5.328 5.470 +0.02 + 9.9 18.0 9.9/ 1 92.9 10.5 65/0.38 108 .03 23 20 43.74 -64 13.8 20 48.03 -64 02.8 5.534 5.562 +0.25 + 9.7 18.2 9.9/ 10 86.5 10.3 72/0.36 41 .60 Nov. 2 20 46.42 -62 36.7 20 50.57 -62 25.5 5.742 5.654 +0.44 + 9.4 18.3 9.9/ 19 80.0 10.0 78/0.33 136 .81 12 20 50.94 -61 02.6 20 54.97 -60 51.2 5.948 5.745 +0.58 + 9.1 18.5 10.1/ 26 73.4 9.5 84/0.31 85 .02 22 20 56.88 -59 32.3 21 00.78 -59 20.5 6.150 5.836 +0.69 + 8.6 18.6 10.2/ 33 67.0 9.0 89/0.28 59 .67 Dec. 2 21 03.87 -58 06.4 21 07.66 -57 54.3 6.345 5.926 +0.77 + 8.2 18.7 10.3/ 38 60.8 8.3 95/0.25 146 .79 12 21 11.64 -56 45.3 21 15.33 -56 32.8 6.529 6.015 +0.82 + 7.7 18.9 10.3/ 43 54.8 7.7 102/0.23 61 .01 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 5.2 151/0.14 118 .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 5.3 177/0.14 135 .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 6.1 198/0.16 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 6.5 206/0.17 148 .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 7.0 213/0.18 70 .72