C/2021 Y1 (ATLAS) Orbit by S. Nakano NK 4877 (2022) Observed in 1st half of 2023
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2023 Apr. 30.71685 2.0324344 1.0009098 245.82201 244.76915 77.19114 0.200 2023 Sep. 13.0 m1 = 7.5 + 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 03 36.22 -01 18.3 03 38.77 -01 08.6 1.731 2.512 -1.10 -23.6 12.7 28.8/215 133.5 16.5 56/1.69 85 .18 2023 Jan. 6 03 25.26 -05 14.5 03 27.74 -05 04.2 1.800 2.446 -0.76 -19.3 12.7 22.3/210 120.1 20.4 60/2.00 53 .99 16 03 17.73 -08 27.8 03 20.17 -08 17.0 1.891 2.384 -0.41 -15.4 12.7 16.5/201 107.8 23.1 65/2.17 153 .41 26 03 13.68 -11 02.0 03 16.08 -10 50.9 1.992 2.325 -0.08 -12.3 12.7 12.3/186 96.9 24.9 69/2.21 46 .23 Feb. 5 03 12.90 -13 04.5 03 15.27 -12 53.4 2.095 2.271 +0.21 - 9.9 12.7 10.4/163 87.2 25.7 74/2.18 88 .99 15 03 15.06 -14 43.7 03 17.41 -14 32.7 2.194 2.221 +0.48 - 8.3 12.7 10.8/141 78.6 25.8 79/2.10 135 .36 25 03 19.86 -16 06.7 03 22.17 -15 56.0 2.283 2.176 +0.71 - 7.4 12.7 12.6/126 71.2 25.5 85/2.00 34 .27 Mar. 7 03 26.99 -17 20.0 03 29.28 -17 09.7 2.360 2.136 +0.92 - 6.9 12.7 14.9/118 64.8 24.9 92/1.89 113 1.00 17 03 36.23 -18 28.9 03 38.49 -18 19.2 2.422 2.102 +1.12 - 6.9 12.6 17.3/114 59.6 24.1 99/1.79 107 .29 27 03 47.44 -19 37.6 03 49.67 -19 28.5 2.468 2.075 +1.30 - 7.3 12.6 19.8/112 55.6 23.4 107/1.71 47 .30 Apr. 6 04 00.51 -20 49.9 04 02.70 -20 41.6 2.498 2.054 +1.49 - 8.0 12.6 22.2/112 52.8 22.8 116/1.66 127 1.00 16 04 15.40 -22 08.7 04 17.56 -22 01.4 2.514 2.040 +1.67 - 8.9 12.6 24.8/112 51.2 22.5 124/1.63 84 .22 26 04 32.16 -23 36.6 04 34.27 -23 30.4 2.516 2.033 +1.86 -10.0 12.6 27.4/112 50.7 22.5 133/1.62 63 .32 May 6 04 50.85 -25 15.6 04 52.91 -25 10.7 2.508 2.033 +2.07 -11.3 12.6 30.0/113 51.2 22.7 141/1.64 129 1.00 16 05 11.58 -27 06.8 05 13.58 -27 03.4 2.492 2.041 +2.29 -12.5 12.6 32.7/114 52.5 23.1 148/1.68 72 .15 26 05 34.50 -29 10.6 05 36.45 -29 08.9 2.473 2.055 +2.52 -13.7 12.6 35.4/114 54.4 23.6 155/1.73 74 .35 June 5 05 59.76 -31 26.2 06 01.64 -31 26.2 2.455 2.076 +2.77 -14.7 12.6 37.9/115 56.6 24.1 160/1.77 121 .99 15 06 27.48 -33 50.7 06 29.30 -33 52.8 2.443 2.104 +3.02 -15.2 12.7 40.0/114 58.8 24.4 164/1.80 73 .10 25 06 57.74 -36 20.1 06 59.50 -36 24.3 2.441 2.138 +3.27 -15.1 12.7 41.6/114 60.8 24.5 168/1.81 76 .37 July 5 07 30.42 -38 48.5 07 32.16 -38 55.0 2.454 2.178 +3.49 -14.3 12.8 42.5/112 62.4 24.4 170/1.80 115 .96 15 08 05.29 -41 09.1 08 07.03 -41 17.8 2.485 2.223 +3.66 -12.9 12.9 42.5/111 63.4 24.1 172/1.76 79 .07 25 08 41.86 -43 15.6 08 43.63 -43 26.5 2.535 2.274 +3.76 -10.9 13.1 41.8/108 63.6 23.6 172/1.69 69 .41 Aug. 4 09 19.42 -45 02.9 09 21.26 -45 15.7 2.606 2.328 +3.78 - 8.7 13.3 40.4/106 63.0 22.9 173/1.59 120 .92 14 09 57.14 -46 28.4 09 59.10 -46 42.8 2.696 2.387 +3.72 - 6.5 13.4 38.4/103 61.6 21.9 173/1.48 79 .05 24 10 34.22 -47 32.2 10 36.34 -47 47.8 2.803 2.450 +3.59 - 4.5 13.6 36.2/100 59.5 20.8 172/1.36 63 .46 Sept. 3 11 09.95 -48 16.5 11 12.24 -48 32.8 2.924 2.515 +3.41 - 2.8 13.8 33.8/ 98 56.7 19.6 172/1.23 131 .88 13 11 43.86 -48 44.6 11 46.34 -49 01.2 3.055 2.584 +3.20 - 1.6 14.0 31.4/ 96 53.4 18.2 172/1.10 70 .04 23 12 15.70 -49 00.3 12 18.35 -49 17.0 3.191 2.655 +2.98 - 0.6 14.3 29.2/ 94 49.7 16.8 173/0.98 67 .52 Oct. 3 12 45.36 -49 07.1 12 48.19 -49 23.4 3.330 2.729 +2.77 0.0 14.5 27.0/ 93 45.8 15.3 175/0.86 137 .84 13 13 12.92 -49 07.7 13 15.89 -49 23.5 3.466 2.804 +2.57 + 0.4 14.7 25.1/ 92 41.9 13.8 178/0.74 54 .03 23 13 38.46 -49 04.5 13 41.57 -49 19.6 3.596 2.881 +2.38 + 0.6 14.9 23.3/ 91 38.2 12.3 182/0.65 84 .60 Nov. 2 14 02.12 -48 58.9 14 05.34 -49 13.2 3.717 2.960 +2.20 + 0.8 15.1 21.6/ 90 35.0 11.1 189/0.56 130 .81 12 14 24.02 -48 52.0 14 27.34 -49 05.4 3.826 3.039 +2.03 + 0.8 15.2 20.0/ 90 32.6 10.1 197/0.50 37 .02 22 14 44.26 -48 44.5 14 47.66 -48 57.0 3.921 3.120 +1.87 + 0.9 15.4 18.5/ 89 31.4 9.5 208/0.46 109 .67 Dec. 2 15 02.89 -48 37.0 15 06.37 -48 48.5 3.999 3.202 +1.71 + 0.8 15.6 17.0/ 89 31.7 9.3 219/0.44 114 .79 12 15 19.98 -48 29.6 15 23.51 -48 40.2 4.059 3.285 +1.56 + 0.8 15.7 15.5/ 89 33.6 9.6 230/0.45 26 .01 22 15 35.49 -48 22.7 15 39.07 -48 32.4 4.100 3.368 +1.39 + 0.7 15.8 13.9/ 88 37.1 10.2 240/0.47 136 .74 2024 Jan. 1 15 49.39 -48 16.2 15 53.01 -48 25.1 4.121 3.452 +1.23 + 0.7 16.0 12.2/ 88 41.9 11.0 248/0.50 93 .78 11 16 01.62 -48 10.4 16 05.27 -48 18.5 4.123 3.536 +1.05 + 0.6 16.1 10.5/ 88 47.6 11.9 255/0.55 39 .01 21 16 12.05 -48 05.1 16 15.73 -48 12.6 4.107 3.620 +0.85 + 0.6 16.2 8.6/ 87 54.2 12.7 260/0.59 156 .79 31 16 20.57 -48 00.0 16 24.26 -48 06.9 4.074 3.705 +0.65 + 0.6 16.2 6.5/ 86 61.4 13.5 265/0.63 68 .77 Feb. 10 16 27.02 -47 54.9 16 30.72 -48 01.4 4.026 3.790 +0.42 + 0.6 16.3 4.3/ 82 69.2 14.1 269/0.66 68 .00 20 16 31.21 -47 48.9 16 34.92 -47 55.1 3.967 3.876 +0.18 + 0.8 16.4 2.0/ 65 77.5 14.4 273/0.69 148 .82 Mar. 1 16 33.00 -47 40.7 16 36.70 -47 46.8 3.900 3.961 -0.08 + 1.2 16.4 1.4/327 86.3 14.5 277/0.70 41 .75 11 16 32.25 -47 28.7 16 35.94 -47 34.9 3.828 4.046 -0.34 + 1.8 16.5 3.9/298 95.5 14.1 282/0.70 103 .01 21 16 28.90 -47 10.5 16 32.57 -47 16.8 3.759 4.132 -0.59 + 2.7 16.5 6.6/294 105.1 13.5 287/0.67 119 .84 31 16 23.03 -46 43.1 16 26.68 -46 49.8 3.696 4.217 -0.82 + 3.9 16.6 9.3/294 115.0 12.4 292/0.63 20 .72