121P/Shoemaker-Holt Orbit by S. Nakano NK 4259 (2020) Last obs. 2024 04 30 (G96)
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2023 June 30.59772 3.7322181 0.1867101 9.83 11.94748 94.10537 20.16195 0.200 2025 May 5.0 m1 = 1.5 + 5 log Delta + 25.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2024 Dec. 26 13 21.20 +12 57.5 13 23.67 +12 41.8 4.263 4.216 +0.62 + 1.0 20.3 9.1/ 83 80.7 13.3 297/0.59 32 .23 2025 Jan. 5 13 27.38 +13 07.4 13 29.85 +12 51.9 4.134 4.231 +0.50 + 2.1 20.2 7.5/ 74 88.9 13.4 294/0.62 147 .28 15 13 32.35 +13 27.9 13 34.80 +13 12.5 4.005 4.246 +0.36 + 3.1 20.2 6.1/ 60 97.4 13.3 290/0.63 69 .99 25 13 35.95 +13 58.5 13 38.40 +13 43.2 3.880 4.261 +0.21 + 4.0 20.2 5.0/ 37 106.2 12.8 286/0.62 58 .22 Feb. 4 13 38.06 +14 38.4 13 40.50 +14 23.2 3.763 4.276 +0.05 + 4.7 20.2 4.8/ 9 115.1 12.1 282/0.60 153 .35 14 13 38.59 +15 25.8 13 41.02 +15 10.6 3.659 4.291 -0.11 + 5.2 20.1 5.5/343 124.1 11.0 276/0.57 41 .98 24 13 37.50 +16 18.2 13 39.93 +16 03.0 3.570 4.306 -0.26 + 5.4 20.1 6.6/325 133.0 9.7 268/0.51 89 .19 Mar. 6 13 34.85 +17 12.3 13 37.28 +16 57.0 3.501 4.321 -0.40 + 5.2 20.1 7.7/312 141.4 8.2 258/0.44 122 .42 16 13 30.84 +18 04.0 13 33.26 +17 48.6 3.456 4.336 -0.51 + 4.5 20.1 8.5/302 148.5 6.9 243/0.38 27 .97 26 13 25.75 +18 49.3 13 28.17 +18 33.8 3.437 4.351 -0.58 + 3.5 20.1 8.9/293 153.3 5.9 221/0.32 123 .16 Apr. 5 13 19.98 +19 24.3 13 22.40 +19 08.6 3.445 4.366 -0.60 + 2.2 20.2 8.7/285 154.1 5.8 195/0.32 85 .49 15 13 14.01 +19 46.0 13 16.45 +19 30.2 3.480 4.382 -0.57 + 0.7 20.2 8.1/275 150.6 6.5 172/0.35 46 .96 25 13 08.33 +19 52.7 13 10.77 +19 36.8 3.541 4.397 -0.50 - 0.9 20.3 7.1/263 144.2 7.7 155/0.41 152 .11 May 5 13 03.35 +19 44.1 13 05.80 +19 28.1 3.626 4.412 -0.39 - 2.3 20.4 6.0/247 136.4 9.1 143/0.47 51 .54 15 12 59.41 +19 20.9 13 01.87 +19 04.8 3.732 4.427 -0.27 - 3.6 20.5 5.2/227 128.1 10.4 135/0.52 77 .95 25 12 56.73 +18 44.9 12 59.20 +18 28.7 3.855 4.443 -0.13 - 4.7 20.6 5.1/202 119.5 11.4 128/0.56 143 .07 June 4 12 55.41 +17 57.7 12 57.89 +17 41.5 3.992 4.458 +0.01 - 5.6 20.7 5.6/179 111.0 12.3 123/0.58 25 .58 14 12 55.48 +17 01.7 12 57.96 +16 45.5 4.139 4.473 +0.14 - 6.3 20.8 6.6/162 102.7 12.8 119/0.59 108 .93 24 12 56.87 +15 58.7 12 59.36 +15 42.5 4.292 4.488 +0.26 - 6.8 21.0 7.8/151 94.6 13.0 116/0.58 111 .03 July 4 12 59.51 +14 50.5 13 01.99 +14 34.3 4.447 4.504 +0.38 - 7.2 21.1 9.0/143 86.6 13.0 113/0.56 28 .61 14 13 03.27 +13 38.5 13 05.76 +13 22.4 4.603 4.519 +0.48 - 7.4 21.2 10.2/137 78.9 12.8 110/0.53 137 .89 24 13 08.03 +12 24.0 13 10.52 +12 08.1 4.754 4.534 +0.57 - 7.6 21.3 11.3/132 71.4 12.3 107/0.49 80 .01 Aug. 3 13 13.69 +11 08.1 13 16.18 +10 52.3 4.901 4.549 +0.64 - 7.6 21.4 12.2/129 64.1 11.6 104/0.45 48 .64 13 13 20.12 +09 51.7 13 22.62 +09 36.1 5.038 4.564 +0.71 - 7.6 21.5 13.0/126 56.9 10.7 101/0.41 160 .84 23 13 27.22 +08 35.6 13 29.72 +08 20.1 5.166 4.579 +0.77 - 7.5 21.6 13.7/123 49.8 9.7 98/0.36 52 .00 Sept. 2 13 34.90 +07 20.4 13 37.40 +07 05.1 5.281 4.594 +0.82 - 7.3 21.7 14.2/121 43.0 8.6 94/0.31 71 .66 12 13 43.06 +06 06.7 13 45.57 +05 51.7 5.382 4.609 +0.86 - 7.1 21.7 14.6/119 36.3 7.4 89/0.26 149 .77 22 13 51.62 +04 55.3 13 54.14 +04 40.6 5.468 4.624 +0.89 - 6.8 21.8 15.0/117 29.8 6.2 83/0.22 29 .00 Oct. 2 14 00.51 +03 46.5 14 03.04 +03 32.1 5.537 4.639 +0.91 - 6.5 21.9 15.2/115 23.8 5.0 73/0.17 95 .70 12 14 09.65 +02 41.0 14 12.18 +02 26.9 5.589 4.654 +0.93 - 6.1 21.9 15.3/114 18.6 3.9 58/0.14 121 .69 22 14 18.96 +01 39.1 14 21.50 +01 25.5 5.621 4.668 +0.94 - 5.7 22.0 15.2/112 15.2 3.2 35/0.11 18 .00 Nov. 1 14 28.36 +00 41.5 14 30.92 +00 28.2 5.635 4.683 +0.94 - 5.3 22.0 15.1/110 14.9 3.1 6/0.11 120 .73 11 14 37.78 -00 11.5 14 40.35 -00 24.3 5.630 4.698 +0.94 - 4.8 22.0 14.8/109 17.9 3.7 341/0.13 93 .63 21 14 47.14 -00 59.4 14 49.71 -01 11.8 5.605 4.712 +0.92 - 4.2 22.1 14.4/107 23.1 4.7 325/0.16 32 .01 Dec. 1 14 56.33 -01 41.9 14 58.92 -01 53.9 5.561 4.726 +0.89 - 3.6 22.1 13.9/105 29.4 5.9 314/0.20 146 .78 11 15 05.27 -02 18.6 15 07.87 -02 30.1 5.499 4.741 +0.86 - 3.0 22.1 13.2/103 36.2 7.1 307/0.25 67 .59 21 15 13.85 -02 49.2 15 16.45 -03 00.2 5.420 4.755 +0.81 - 2.4 22.1 12.4/101 43.5 8.2 302/0.29 55 .01 31 15 21.95 -03 13.6 15 24.56 -03 24.1 5.324 4.769 +0.75 - 1.7 22.1 11.4/ 99 51.1 9.2 297/0.34 160 .84 2026 Jan. 10 15 29.46 -03 31.5 15 32.07 -03 41.6 5.215 4.783 +0.68 - 1.1 22.1 10.2/ 96 59.0 10.2 294/0.38 43 .56 20 15 36.24 -03 42.9 15 38.86 -03 52.6 5.094 4.797 +0.59 - 0.5 22.1 8.9/ 93 67.1 10.9 290/0.41 81 .01 30 15 42.15 -03 48.0 15 44.78 -03 57.3 4.963 4.811 +0.49 + 0.1 22.0 7.4/ 89 75.5 11.4 287/0.44 139 .89 Feb. 9 15 47.08 -03 46.9 15 49.70 -03 56.0 4.827 4.825 +0.38 + 0.7 22.0 5.7/ 83 84.0 11.7 285/0.47 24 .55 19 15 50.87 -03 40.1 15 53.50 -03 48.9 4.688 4.839 +0.25 + 1.2 22.0 4.0/ 72 92.9 11.8 282/0.48 110 .03 Mar. 1 15 53.42 -03 28.1 15 56.04 -03 36.8 4.550 4.852 +0.12 + 1.6 21.9 2.4/ 48 101.9 11.5 279/0.49 107 .93