164P/Christensen Orbit by T. Kobayashi NK 4983 (2022) Last obs. 2020 04 21 (F52)

Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2025 May 27.37959 1.6756645 0.5412306 6.98 325.92213 88.26786 16.27662 0.200 2024 Mar. 31.0 m1 = 11.0 + 5 log Delta + 10.0 log r Date/ 0h TT R.A.(1950) Decl. R.A.(2000) Decl. Delta r Variation Magnitude Mot./PA Elong. P PA/Tail Moon Age h m ¡ , h m ¡ , for T=+1 day m1 , ¡ ¡ ¡ ¡ ¡ ¡ 2023 Dec. 22 18 32.36 -25 58.9 18 35.46 -25 56.5 5.095 4.126 -0.32 + 1.0 20.7 16.1/ 91 8.9 2.1 104/0.08 110 .74 2024 Jan. 1 18 44.34 -26 00.0 18 47.43 -25 56.6 5.066 4.084 -0.33 + 0.9 20.6 16.5/ 90 3.1 0.7 157/0.03 125 .78 11 18 56.54 -25 58.2 18 59.63 -25 54.0 5.015 4.041 -0.34 + 0.8 20.6 16.6/ 89 7.2 1.8 238/0.07 2 .01 21 19 08.86 -25 53.9 19 11.94 -25 48.8 4.944 3.998 -0.36 + 0.7 20.5 16.7/ 88 14.3 3.5 250/0.14 139 .79 31 19 21.21 -25 47.3 19 24.28 -25 41.4 4.853 3.954 -0.38 + 0.5 20.4 16.6/ 87 21.6 5.3 253/0.21 101 .77 Feb. 10 19 33.50 -25 38.7 19 36.55 -25 32.0 4.743 3.909 -0.40 + 0.4 20.3 16.4/ 87 28.9 7.0 254/0.28 29 .00 20 19 45.61 -25 28.8 19 48.65 -25 21.3 4.616 3.863 -0.42 + 0.3 20.2 16.1/ 87 36.3 8.7 254/0.36 166 .82 Mar. 1 19 57.46 -25 18.3 20 00.48 -25 10.0 4.472 3.817 -0.44 + 0.2 20.1 15.6/ 87 43.6 10.3 254/0.44 77 .75 11 20 08.96 -25 07.9 20 11.96 -24 58.9 4.315 3.770 -0.47 0.0 19.9 15.0/ 87 51.0 11.8 253/0.52 60 .01 21 20 19.99 -24 58.8 20 22.98 -24 49.1 4.145 3.723 -0.50 - 0.1 19.8 14.2/ 88 58.5 13.2 253/0.60 168 .84 31 20 30.45 -24 51.9 20 33.42 -24 41.6 3.965 3.675 -0.53 - 0.3 19.6 13.3/ 89 66.0 14.4 253/0.68 50 .72 Apr. 10 20 40.22 -24 48.5 20 43.17 -24 37.7 3.778 3.626 -0.57 - 0.5 19.5 12.2/ 91 73.7 15.4 253/0.77 91 .02 20 20 49.14 -24 50.1 20 52.08 -24 38.8 3.585 3.577 -0.61 - 0.6 19.3 10.8/ 94 81.5 16.1 253/0.84 142 .86 30 20 57.09 -24 58.3 21 00.02 -24 46.5 3.389 3.527 -0.66 - 0.8 19.1 9.4/100 89.5 16.6 253/0.91 19 .66 May 10 21 03.88 -25 14.5 21 06.80 -25 02.4 3.194 3.476 -0.71 - 1.0 18.9 7.8/110 97.7 16.7 254/0.97 123 .05 20 21 09.29 -25 40.5 21 12.21 -25 28.2 3.003 3.425 -0.76 - 1.1 18.7 6.4/126 106.1 16.5 255/1.02 114 .88 30 21 13.12 -26 17.7 21 16.05 -26 05.1 2.818 3.373 -0.83 - 1.3 18.5 5.6/151 114.9 15.8 257/1.04 17 .58 June 9 21 15.12 -27 07.0 21 18.05 -26 54.4 2.644 3.320 -0.89 - 1.3 18.3 6.2/181 124.0 14.7 259/1.02 155 .07 19 21 15.04 -28 08.7 21 17.99 -27 56.1 2.484 3.267 -0.97 - 1.3 18.1 7.9/202 133.4 13.1 263/0.97 82 .90 29 21 12.71 -29 21.6 21 15.69 -29 09.1 2.342 3.213 -1.04 - 1.2 17.9 10.1/216 143.1 11.0 269/0.86 57 .49 July 9 21 08.04 -30 43.0 21 11.05 -30 30.7 2.222 3.159 -1.11 - 1.0 17.7 12.2/225 152.6 8.5 280/0.70 165 .09 19 21 01.15 -32 07.8 21 04.20 -31 55.9 2.127 3.104 -1.16 - 0.6 17.6 13.7/232 160.8 6.2 301/0.53 44 .92 29 20 52.46 -33 29.7 20 55.55 -33 18.2 2.058 3.049 -1.20 - 0.1 17.4 14.1/238 164.7 5.1 340/0.45 101 .40 Aug. 8 20 42.66 -34 41.7 20 45.80 -34 30.7 2.017 2.993 -1.21 + 0.5 17.3 13.3/244 160.7 6.4 20/0.58 128 .11 18 20 32.79 -35 37.8 20 35.97 -35 27.4 2.004 2.937 -1.19 + 1.1 17.2 11.4/250 152.1 9.3 41/0.84 12 .95 28 20 23.92 -36 14.8 20 27.13 -36 04.9 2.015 2.880 -1.15 + 1.6 17.1 8.5/257 142.2 12.4 53/1.12 143 .33 Sept. 7 20 17.03 -36 32.2 20 20.27 -36 22.7 2.047 2.823 -1.10 + 1.9 17.1 5.0/270 132.1 15.4 61/1.36 91 .13 17 20 12.85 -36 31.6 20 16.10 -36 22.3 2.096 2.766 -1.04 + 2.1 17.0 2.1/319 122.2 17.9 66/1.54 42 .98 27 20 11.73 -36 15.7 20 14.98 -36 06.5 2.157 2.708 -0.99 + 2.0 17.0 3.8/ 41 112.8 19.9 70/1.67 169 .28 Oct. 7 20 13.76 -35 47.2 20 16.99 -35 37.9 2.226 2.650 -0.95 + 1.9 17.0 7.3/ 58 103.9 21.5 73/1.74 59 .15 17 20 18.81 -35 08.0 20 22.01 -34 58.4 2.299 2.593 -0.92 + 1.6 16.9 10.8/ 63 95.6 22.5 75/1.77 78 1.00 27 20 26.60 -34 19.4 20 29.77 -34 09.4 2.372 2.535 -0.89 + 1.2 16.9 14.0/ 66 87.7 23.1 76/1.76 146 .25 Nov. 6 20 36.85 -33 21.9 20 39.97 -33 11.3 2.443 2.477 -0.88 + 0.7 16.9 17.0/ 68 80.3 23.2 77/1.72 30 .18 16 20 49.24 -32 15.5 20 52.32 -32 04.2 2.509 2.419 -0.87 + 0.2 16.8 19.7/ 68 73.4 23.1 78/1.67 109 1.00 26 21 03.45 -31 00.0 21 06.48 -30 47.9 2.569 2.362 -0.88 - 0.4 16.8 22.1/ 68 66.8 22.6 79/1.60 123 .24 Dec. 6 21 19.23 -29 34.7 21 22.20 -29 21.8 2.622 2.305 -0.88 - 1.0 16.7 24.4/ 68 60.6 21.9 79/1.52 10 .23 16 21 36.33 -27 59.3 21 39.23 -27 45.7 2.667 2.249 -0.89 - 1.7 16.7 26.5/ 67 54.8 21.0 80/1.44 134 .99 26 21 54.52 -26 13.4 21 57.36 -25 59.1 2.704 2.194 -0.90 - 2.4 16.6 28.4/ 67 49.3 19.9 81/1.35 104 .23 2025 Jan. 5 22 13.65 -24 16.8 22 16.43 -24 01.9 2.732 2.139 -0.92 - 3.2 16.5 30.3/ 66 44.2 18.7 82/1.26 24 .28 15 22 33.56 -22 09.6 22 36.29 -21 54.1 2.752 2.087 -0.94 - 3.9 16.4 31.9/ 65 39.3 17.4 83/1.17 154 .99 25 22 54.15 -19 52.0 22 56.82 -19 35.9 2.765 2.035 -0.95 - 4.7 16.3 33.5/ 65 34.8 16.0 85/1.07 87 .22 Feb. 4 23 15.34 -17 24.3 23 17.97 -17 07.8 2.770 1.986 -0.97 - 5.5 16.2 35.0/ 64 30.6 14.6 87/0.98 46 .35 14 23 37.07 -14 47.4 23 39.66 -14 30.8 2.770 1.939 -1.00 - 6.3 16.1 36.4/ 64 26.7 13.2 89/0.89 167 .98 24 23 59.31 -12 02.3 00 01.87 -11 45.6 2.765 1.895 -1.02 - 7.1 16.0 37.7/ 63 23.1 11.8 93/0.79 72 .19 Mar. 6 00 22.06 -09 10.2 00 24.60 -08 53.6 2.756 1.853 -1.04 - 7.8 15.9 38.9/ 63 19.8 10.4 98/0.70 66 .42 16 00 45.32 -06 12.9 00 47.86 -05 56.6 2.745 1.815 -1.07 - 8.5 15.8 39.9/ 63 16.7 9.1 103/0.62 167 .97 26 01 09.11 -03 12.2 01 11.65 -02 56.3 2.732 1.781 -1.10 - 9.1 15.7 40.8/ 64 14.0 7.8 111/0.53 57 .16

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