128P/Shoemaker-Holt-B Orbit by S. Nakano NK 3529 (2018) Observed in 2nd half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2026 July 17.05528 3.0367907 0.3222546 9.48 210.56795 214.30684 4.37169 0.200 2026 June 9.0 m1 = 2.0 + 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2025 Dec. 31 00 19.97 +03 01.6 00 22.53 +03 18.2 3.120 3.227 +0.80 + 4.0 17.2 12.7/ 71 87.3 17.7 67/1.05 45 .84 2026 Jan. 10 00 27.99 +03 41.8 00 30.56 +03 58.4 3.245 3.209 +0.93 + 4.9 17.2 14.7/ 71 79.2 17.5 67/1.00 176 .56 20 00 37.27 +04 30.6 00 39.85 +04 47.1 3.366 3.192 +1.04 + 5.6 17.2 16.5/ 70 71.5 17.0 67/0.94 58 .01 30 00 47.66 +05 26.6 00 50.24 +05 42.9 3.481 3.176 +1.13 + 6.1 17.3 18.0/ 70 64.0 16.2 67/0.87 77 .89 Feb. 9 00 58.99 +06 28.2 01 01.58 +06 44.4 3.589 3.161 +1.22 + 6.6 17.3 19.3/ 70 56.9 15.2 67/0.79 152 .55 19 01 11.15 +07 34.3 01 13.76 +07 50.2 3.689 3.146 +1.29 + 6.9 17.3 20.4/ 70 50.0 13.9 68/0.71 32 .03 Mar. 1 01 24.05 +08 43.6 01 26.67 +08 59.1 3.778 3.132 +1.35 + 7.1 17.3 21.2/ 70 43.3 12.5 68/0.63 105 .93 11 01 37.58 +09 54.7 01 40.22 +10 09.9 3.857 3.119 +1.41 + 7.1 17.3 22.0/ 71 36.9 11.0 69/0.54 131 .54 21 01 51.67 +11 06.5 01 54.34 +11 21.3 3.923 3.107 +1.46 + 7.1 17.3 22.6/ 71 30.6 9.4 70/0.45 6 .05 31 02 06.26 +12 18.0 02 08.95 +12 32.2 3.978 3.096 +1.50 + 6.9 17.3 23.1/ 72 24.4 7.7 71/0.37 131 .95 Apr. 10 02 21.28 +13 28.1 02 24.00 +13 41.7 4.020 3.086 +1.54 + 6.7 17.3 23.4/ 73 18.4 5.9 73/0.28 111 .52 20 02 36.69 +14 35.8 02 39.44 +14 48.7 4.049 3.076 +1.58 + 6.4 17.2 23.7/ 74 12.5 4.1 75/0.19 23 .09 30 02 52.42 +15 40.2 02 55.20 +15 52.4 4.066 3.068 +1.60 + 5.9 17.2 23.8/ 75 6.8 2.2 80/0.10 154 .97 May 10 03 08.42 +16 40.5 03 11.23 +16 51.8 4.070 3.061 +1.63 + 5.5 17.2 23.9/ 76 1.3 0.4 117/0.02 90 .49 20 03 24.64 +17 36.0 03 27.48 +17 46.4 4.061 3.054 +1.64 + 4.9 17.2 23.9/ 78 4.8 1.6 243/0.07 50 .15 30 03 41.01 +18 26.0 03 43.88 +18 35.4 4.040 3.049 +1.65 + 4.3 17.1 23.8/ 79 10.4 3.4 251/0.16 172 .98 June 9 03 57.47 +19 09.9 04 00.37 +19 18.3 4.007 3.044 +1.65 + 3.6 17.1 23.6/ 80 16.0 5.3 254/0.25 67 .44 19 04 13.95 +19 47.2 04 16.87 +19 54.6 3.963 3.041 +1.64 + 2.9 17.1 23.3/ 82 21.6 7.1 257/0.34 75 .20 29 04 30.35 +20 17.7 04 33.29 +20 24.0 3.907 3.038 +1.63 + 2.2 17.0 22.9/ 84 27.2 8.8 259/0.43 163 .99 July 9 04 46.59 +20 41.2 04 49.55 +20 46.3 3.840 3.037 +1.60 + 1.5 17.0 22.5/ 85 32.9 10.5 261/0.52 42 .37 19 05 02.56 +20 57.5 05 05.54 +21 01.5 3.762 3.037 +1.56 + 0.8 16.9 21.8/ 87 38.7 12.1 262/0.61 100 .26 29 05 18.15 +21 06.7 05 21.14 +21 09.6 3.675 3.038 +1.51 + 0.1 16.9 21.1/ 89 44.6 13.6 264/0.70 142 1.00 Aug. 8 05 33.25 +21 09.1 05 36.24 +21 11.0 3.579 3.039 +1.45 - 0.5 16.8 20.2/ 91 50.7 15.0 266/0.78 16 .29 18 05 47.70 +21 05.1 05 50.69 +21 05.9 3.474 3.042 +1.37 - 1.1 16.8 19.2/ 93 56.9 16.2 268/0.87 123 .30 28 06 01.36 +20 55.2 06 04.35 +20 54.9 3.362 3.046 +1.27 - 1.6 16.7 17.9/ 95 63.4 17.2 269/0.96 119 1.00 Sept. 7 06 14.08 +20 40.1 06 17.06 +20 38.9 3.243 3.051 +1.16 - 2.0 16.7 16.4/ 97 70.1 18.1 271/1.04 17 .21 17 06 25.66 +20 20.7 06 28.63 +20 18.7 3.120 3.056 +1.02 - 2.3 16.6 14.6/ 99 77.1 18.7 272/1.11 146 .33 27 06 35.90 +19 58.0 06 38.86 +19 55.3 2.994 3.063 +0.87 - 2.5 16.5 12.5/101 84.4 19.0 274/1.17 92 1.00 Oct. 7 06 44.61 +19 33.3 06 47.56 +19 30.0 2.867 3.071 +0.69 - 2.6 16.5 10.2/105 92.2 19.0 275/1.22 47 .15 17 06 51.56 +19 07.8 06 54.50 +19 03.9 2.740 3.080 +0.50 - 2.5 16.4 7.5/110 100.4 18.6 276/1.25 169 .34 27 06 56.53 +18 42.8 06 59.46 +18 38.6 2.619 3.090 +0.28 - 2.3 16.3 4.6/120 109.1 17.7 277/1.24 60 .99 Nov. 6 06 59.34 +18 19.6 07 02.26 +18 15.3 2.505 3.100 +0.05 - 2.0 16.3 2.1/161 118.3 16.4 279/1.20 80 .11 16 06 59.85 +17 59.6 07 02.76 +17 55.2 2.402 3.112 -0.18 - 1.6 16.2 3.0/238 128.2 14.5 280/1.11 157 .36 26 06 58.04 +17 43.5 07 00.95 +17 39.3 2.315 3.124 -0.40 - 1.1 16.2 5.8/259 138.5 12.1 282/0.96 24 .97 Dec. 6 06 54.09 +17 32.1 06 56.99 +17 28.1 2.249 3.137 -0.57 - 0.6 16.2 8.2/266 149.4 9.2 285/0.75 115 .09 16 06 48.35 +17 25.4 06 51.26 +17 21.8 2.206 3.152 -0.69 - 0.2 16.2 9.8/269 160.6 6.0 291/0.50 123 .38 26 06 41.48 +17 23.3 06 44.38 +17 20.2 2.191 3.167 -0.72 + 0.2 16.2 10.4/272 171.1 2.7 313/0.23 22 .94 2027 Jan. 5 06 34.24 +17 25.1 06 37.15 +17 22.6 2.205 3.182 -0.68 + 0.6 16.3 9.7/274 172.3 2.4 44/0.19 152 .07 15 06 27.48 +17 30.4 06 30.39 +17 28.3 2.248 3.199 -0.55 + 0.8 16.4 7.9/276 162.1 5.4 75/0.44 84 .41 25 06 21.95 +17 38.2 06 24.87 +17 36.5 2.319 3.216 -0.37 + 1.0 16.5 5.4/281 151.0 8.5 82/0.67 63 .91 Feb. 4 06 18.21 +17 48.0 06 21.13 +17 46.6 2.415 3.234 -0.16 + 1.1 16.7 2.6/296 140.2 11.3 85/0.85 166 .06 14 06 16.57 +17 59.1 06 19.49 +17 57.8 2.531 3.253 +0.06 + 1.1 16.8 1.4/ 35 129.8 13.5 87/0.97 45 .46 24 06 17.12 +18 10.5 06 20.05 +18 09.1 2.664 3.272 +0.27 + 1.1 17.0 4.0/ 74 119.9 15.2 89/1.04 100 .88 Mar. 6 06 19.80 +18 21.4 06 22.73 +18 19.9 2.810 3.292 +0.46 + 0.9 17.2 6.7/ 82 110.5 16.4 90/1.07 137 .05