C/2021 S3 (PANSTARRS) Orbit by S. Nakano NK 5134 (2024) Observed in 1st half of 2024

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2024 Feb. 14.71119 1.3202057 1.0002774 6.85538 215.62081 58.53288 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 14 11.23 -38 58.3 14 14.29 -39 12.3 1.994 1.548 +3.62 + 9.2 10.4 43.5/ 81 49.5 28.9 269/2.55 151 .74 2024 Jan. 1 14 47.35 -37 28.1 14 50.48 -37 40.5 1.878 1.477 +3.62 +14.8 10.1 46.1/ 74 51.2 31.3 271/2.90 78 .78 11 15 23.46 -35 01.7 15 26.64 -35 12.1 1.763 1.418 +3.55 +21.3 9.7 49.3/ 67 53.4 33.9 273/3.30 45 .01 21 15 59.01 -31 31.0 16 02.17 -31 39.4 1.652 1.371 +3.45 +28.3 9.5 53.2/ 60 56.0 36.5 274/3.76 173 .79 31 16 33.54 -26 49.8 16 36.63 -26 55.9 1.547 1.338 +3.30 +35.8 9.2 57.7/ 53 58.9 39.1 275/4.24 64 .77 Feb. 10 17 06.69 -20 54.5 17 09.67 -20 58.3 1.454 1.322 +3.13 +43.0 9.0 62.1/ 47 62.2 41.3 276/4.70 63 .00 20 17 38.17 -13 47.0 17 41.01 -13 48.4 1.379 1.323 +2.95 +49.1 8.9 65.6/ 42 65.5 42.9 276/5.10 159 .82 Mar. 1 18 07.80 -05 38.1 18 10.48 -05 37.5 1.326 1.340 +2.75 +53.1 8.9 67.2/ 38 68.9 43.6 276/5.36 56 .75 11 18 35.43 +03 10.8 18 37.93 +03 13.5 1.300 1.373 +2.52 +54.2 8.9 65.9/ 34 72.1 43.5 275/5.44 81 .01 21 19 00.84 +12 10.9 19 03.17 +12 15.4 1.303 1.421 +2.29 +52.3 9.1 61.8/ 31 75.0 42.6 273/5.34 134 .84 31 19 23.87 +20 52.6 19 26.04 +20 58.7 1.333 1.481 +2.03 +48.3 9.3 55.6/ 29 77.4 41.2 270/5.07 61 .72 Apr. 10 19 44.28 +28 54.1 19 46.29 +29 01.5 1.385 1.552 +1.73 +43.0 9.6 48.2/ 26 79.3 39.4 267/4.71 89 .02 20 20 01.77 +36 03.0 20 03.64 +36 11.5 1.454 1.631 +1.41 +37.4 9.9 40.8/ 23 80.9 37.5 262/4.31 117 .86 30 20 16.03 +42 16.0 20 17.76 +42 25.4 1.534 1.718 +1.05 +32.0 10.3 33.9/ 18 82.3 35.5 257/3.92 70 .66 May 10 20 26.67 +47 35.3 20 28.26 +47 45.3 1.620 1.809 +0.64 +26.9 10.6 27.6/ 12 83.5 33.7 251/3.55 91 .05 20 20 33.24 +52 03.9 20 34.68 +52 14.3 1.708 1.905 +0.20 +22.1 11.0 22.2/ 4 84.9 31.9 244/3.22 109 .88 30 20 35.40 +55 44.9 20 36.68 +55 55.4 1.795 2.004 -0.27 +17.5 11.3 17.6/353 86.3 30.3 235/2.94 74 .58 June 9 20 32.86 +58 39.8 20 33.99 +58 50.2 1.881 2.106 -0.72 +12.8 11.6 13.9/338 88.0 28.8 226/2.68 93 .07 19 20 25.79 +60 48.1 20 26.74 +60 58.1 1.963 2.209 -1.10 + 8.0 11.9 11.2/317 89.9 27.4 215/2.46 103 .90 29 20 14.94 +62 08.7 20 15.74 +62 18.0 2.043 2.313 -1.33 + 3.1 12.2 9.7/290 92.0 26.1 204/2.26 75 .49 July 9 20 01.72 +62 41.0 20 02.42 +62 49.4 2.120 2.419 -1.37 - 1.6 12.5 9.5/262 94.3 24.8 191/2.09 97 .09 19 19 48.10 +62 25.7 19 48.76 +62 33.3 2.197 2.524 -1.21 - 5.9 12.7 10.4/236 96.6 23.6 179/1.92 94 .92 29 19 35.99 +61 27.1 19 36.68 +61 33.9 2.275 2.630 -0.92 - 9.6 13.0 11.7/216 98.9 22.4 166/1.78 81 .40 Aug. 8 19 26.74 +59 51.5 19 27.51 +59 57.7 2.355 2.736 -0.56 -12.5 13.2 13.3/200 101.0 21.3 154/1.64 100 .11 18 19 21.02 +57 46.6 19 21.92 +57 52.4 2.441 2.842 -0.20 -14.6 13.5 14.7/187 102.8 20.3 143/1.51 83 .95 28 19 18.86 +55 20.8 19 19.90 +55 26.4 2.533 2.947 +0.12 -15.9 13.7 15.9/176 104.1 19.4 132/1.40 93 .33 Sept. 7 19 19.93 +52 41.6 19 21.12 +52 47.4 2.634 3.052 +0.40 -16.5 13.9 16.9/167 104.9 18.6 122/1.30 97 .13 17 19 23.78 +49 56.4 19 25.10 +50 02.4 2.746 3.157 +0.62 -16.5 14.2 17.6/159 104.9 17.9 112/1.20 75 .98 27 19 29.88 +47 11.3 19 31.33 +47 17.7 2.869 3.261 +0.80 -16.0 14.4 18.0/152 104.0 17.3 103/1.12 107 .28 Oct. 7 19 37.80 +44 31.2 19 39.36 +44 38.2 3.005 3.365 +0.94 -15.0 14.7 18.2/145 102.4 16.9 95/1.04 87 .15 17 19 47.13 +42 00.6 19 48.80 +42 08.2 3.153 3.468 +1.05 -13.7 14.9 18.2/138 100.0 16.4 87/0.97 76 1.00 27 19 57.54 +39 42.6 19 59.30 +39 50.8 3.312 3.570 +1.13 -12.3 15.1 18.0/132 96.9 16.0 79/0.90 117 .25 Nov. 6 20 08.76 +37 39.1 20 10.60 +37 48.1 3.482 3.672 +1.19 -10.7 15.4 17.8/126 93.1 15.6 72/0.84 71 .18 16 20 20.57 +35 51.9 20 22.47 +36 01.5 3.661 3.774 +1.23 - 9.0 15.6 17.5/120 88.9 15.2 66/0.78 89 1.00 26 20 32.77 +34 21.2 20 34.73 +34 31.6 3.847 3.874 +1.25 - 7.3 15.8 17.2/114 84.2 14.7 60/0.72 118 .24 Dec. 6 20 45.21 +33 07.3 20 47.23 +33 18.4 4.038 3.974 +1.26 - 5.7 16.0 16.9/109 79.3 14.1 54/0.66 55 .23 16 20 57.77 +32 09.7 20 59.83 +32 21.4 4.231 4.074 +1.26 - 4.2 16.2 16.6/104 74.1 13.4 48/0.60 107 .99 26 21 10.33 +31 27.5 21 12.44 +31 39.9 4.424 4.172 +1.25 - 2.7 16.4 16.3/ 99 68.9 12.7 43/0.55 110 .23 2025 Jan. 5 21 22.82 +30 59.8 21 24.96 +31 12.8 4.615 4.271 +1.24 - 1.4 16.6 15.9/ 94 63.7 11.9 37/0.49 46 .28 15 21 35.14 +30 45.6 21 37.31 +30 59.1 4.800 4.368 +1.21 - 0.2 16.8 15.6/ 90 58.5 11.1 31/0.44 125 .99 25 21 47.23 +30 43.5 21 49.43 +30 57.5 4.979 4.465 +1.18 + 0.9 17.0 15.2/ 86 53.6 10.2 24/0.39 96 .22 Feb. 4 21 59.03 +30 52.4 22 01.26 +31 06.9 5.147 4.561 +1.15 + 1.9 17.1 14.8/ 82 49.0 9.4 17/0.35 53 .35 14 22 10.49 +31 11.1 22 12.74 +31 25.9 5.304 4.657 +1.11 + 2.8 17.3 14.4/ 78 44.9 8.6 8/0.31 139 .98 24 22 21.55 +31 38.3 22 23.82 +31 53.6 5.448 4.752 +1.06 + 3.5 17.5 13.9/ 75 41.5 7.9 359/0.28 77 .19 Mar. 6 22 32.16 +32 13.2 22 34.46 +32 28.7 5.578 4.847 +1.01 + 4.2 17.6 13.4/ 71 39.0 7.4 348/0.26 72 .42 16 22 42.26 +32 54.4 22 44.58 +33 10.2 5.691 4.941 +0.96 + 4.7 17.7 12.9/ 68 37.6 7.1 336/0.24 141 .97 26 22 51.81 +33 41.1 22 54.15 +33 57.1 5.788 5.034 +0.90 + 5.1 17.8 12.2/ 64 37.6 6.9 324/0.23 56 .16

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