143P/Kowal-Mrkos Orbit by T. Kobayashi NK 2855 (2015) Observed in 1st half of 2026
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2026 Dec. 28.32800 2.9568520 0.3772388 10.3 304.91317 242.00249 5.39381 0.200 2026 June 9.0 m1 = 12.5 + 5 log Delta + 7.0 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 08 06.89 +14 16.8 08 09.69 +14 07.9 2.706 3.631 -0.62 + 0.6 18.6 9.0/274 157.0 6.1 296/0.41 71 .84 2026 Jan. 10 08 00.68 +14 22.0 08 03.48 +14 13.5 2.634 3.601 -0.69 + 1.1 18.5 10.1/276 167.8 3.3 311/0.23 72 .56 20 07 53.73 +14 32.2 07 56.55 +14 24.2 2.591 3.571 -0.70 + 1.4 18.4 10.2/278 173.7 1.7 25/0.12 163 .01 30 07 46.75 +14 46.0 07 49.57 +14 38.4 2.579 3.541 -0.63 + 1.6 18.4 9.3/280 165.5 4.0 76/0.29 28 .89 Feb. 9 07 40.43 +15 01.5 07 43.26 +14 54.3 2.596 3.512 -0.50 + 1.6 18.4 7.5/283 154.4 7.0 87/0.50 108 .55 19 07 35.37 +15 17.2 07 38.21 +15 10.4 2.639 3.483 -0.33 + 1.5 18.4 5.0/287 143.3 9.8 91/0.69 125 .03 Mar. 1 07 32.07 +15 31.7 07 34.91 +15 25.1 2.706 3.454 -0.13 + 1.2 18.4 2.2/303 132.6 12.2 94/0.84 18 .93 11 07 30.77 +15 43.7 07 33.62 +15 37.2 2.790 3.426 +0.08 + 0.9 18.5 1.5/ 53 122.4 14.2 95/0.94 141 .54 21 07 31.58 +15 52.4 07 34.43 +15 45.9 2.888 3.399 +0.29 + 0.4 18.5 4.2/ 84 112.6 15.7 97/1.01 88 .05 31 07 34.45 +15 57.0 07 37.30 +15 50.2 2.996 3.371 +0.48 - 0.1 18.6 6.9/ 90 103.5 16.7 98/1.04 52 .95 Apr. 10 07 39.25 +15 56.7 07 42.10 +15 49.6 3.108 3.345 +0.65 - 0.6 18.6 9.4/ 93 94.8 17.4 99/1.04 168 .52 20 07 45.78 +15 51.0 07 48.63 +15 43.5 3.223 3.319 +0.81 - 1.2 18.7 11.7/ 96 86.6 17.6 101/1.01 53 .09 30 07 53.86 +15 39.5 07 56.70 +15 31.4 3.336 3.293 +0.94 - 1.8 18.7 13.7/ 97 78.9 17.5 102/0.98 81 .97 May 10 08 03.27 +15 21.7 08 06.09 +15 13.0 3.446 3.269 +1.05 - 2.5 18.8 15.5/ 99 71.5 17.0 104/0.92 159 .49 20 08 13.81 +14 57.3 08 16.62 +14 48.0 3.550 3.245 +1.15 - 3.2 18.8 17.0/100 64.5 16.3 105/0.86 21 .15 30 08 25.32 +14 26.1 08 28.11 +14 16.2 3.647 3.221 +1.23 - 3.9 18.9 18.3/102 57.7 15.4 107/0.79 107 .98 June 9 08 37.62 +13 48.2 08 40.39 +13 37.5 3.735 3.199 +1.29 - 4.6 18.9 19.4/103 51.2 14.3 109/0.72 134 .44 19 08 50.58 +13 03.4 08 53.33 +12 52.0 3.814 3.177 +1.35 - 5.2 18.9 20.4/104 44.9 13.1 110/0.65 10 .20 29 09 04.08 +12 11.8 09 06.81 +11 59.7 3.883 3.156 +1.39 - 5.9 18.9 21.3/106 38.8 11.7 112/0.57 130 .99 July 9 09 18.00 +11 13.7 09 20.71 +11 01.0 3.941 3.136 +1.42 - 6.5 19.0 22.0/107 32.9 10.1 114/0.49 108 .37 19 09 32.27 +10 09.4 09 34.95 +09 56.0 3.987 3.117 +1.45 - 7.1 19.0 22.6/108 27.1 8.5 117/0.41 34 .26 29 09 46.80 +08 59.1 09 49.46 +08 45.1 4.022 3.098 +1.47 - 7.6 19.0 23.1/109 21.4 6.9 120/0.33 151 1.00 Aug. 8 10 01.53 +07 43.5 10 04.16 +07 28.9 4.044 3.081 +1.49 - 8.1 19.0 23.6/110 15.8 5.2 125/0.24 81 .29 18 10 16.40 +06 22.8 10 19.01 +06 07.8 4.055 3.065 +1.49 - 8.5 18.9 23.9/111 10.5 3.4 134/0.16 56 .30 28 10 31.36 +04 57.8 10 33.96 +04 42.3 4.053 3.050 +1.50 - 8.9 18.9 24.2/112 5.7 1.9 156/0.09 173 1.00 Sept. 7 10 46.38 +03 29.1 10 48.96 +03 13.2 4.040 3.035 +1.50 - 9.2 18.9 24.3/112 4.3 1.4 223/0.07 53 .21 17 11 01.41 +01 57.3 11 03.98 +01 41.1 4.014 3.022 +1.50 - 9.4 18.9 24.4/113 8.3 2.8 264/0.13 77 .33 27 11 16.42 +00 23.2 11 18.98 +00 06.7 3.976 3.010 +1.50 - 9.6 18.8 24.4/113 13.6 4.5 276/0.21 163 1.00 Oct. 7 11 31.38 -01 12.5 11 33.94 -01 29.1 3.926 3.000 +1.49 - 9.7 18.8 24.3/113 19.2 6.3 282/0.30 27 .15 17 11 46.24 -02 49.0 11 48.80 -03 05.6 3.864 2.990 +1.47 - 9.6 18.8 24.0/114 24.9 8.1 285/0.39 96 .34 27 12 00.96 -04 25.2 12 03.52 -04 41.9 3.792 2.981 +1.45 - 9.5 18.7 23.7/114 30.8 9.8 287/0.49 138 .99 Nov. 6 12 15.49 -06 00.5 12 18.06 -06 17.2 3.709 2.974 +1.43 - 9.3 18.7 23.2/114 36.8 11.5 288/0.58 2 .11 16 12 29.76 -07 33.9 12 32.34 -07 50.5 3.615 2.968 +1.40 - 9.0 18.6 22.6/114 42.9 13.1 289/0.68 116 .36 26 12 43.70 -09 04.4 12 46.29 -09 20.8 3.513 2.963 +1.35 - 8.7 18.5 21.8/114 49.2 14.6 289/0.77 112 .97 Dec. 6 12 57.21 -10 31.2 12 59.82 -10 47.4 3.402 2.960 +1.30 - 8.2 18.5 20.8/114 55.7 16.0 290/0.87 22 .09 16 13 10.17 -11 53.3 13 12.81 -12 09.2 3.283 2.958 +1.23 - 7.6 18.4 19.5/113 62.3 17.1 290/0.96 138 .38 26 13 22.44 -13 09.7 13 25.10 -13 25.3 3.159 2.957 +1.14 - 7.0 18.3 18.1/113 69.2 18.1 290/1.06 83 .94 2027 Jan. 5 13 33.87 -14 19.6 13 36.55 -14 34.9 3.030 2.957 +1.04 - 6.2 18.2 16.3/113 76.4 18.9 290/1.14 45 .07 15 13 44.25 -15 22.0 13 46.95 -15 36.9 2.898 2.959 +0.91 - 5.4 18.1 14.2/112 83.8 19.3 290/1.22 163 .41 25 13 53.36 -16 15.8 13 56.07 -16 30.5 2.766 2.962 +0.76 - 4.4 18.0 11.8/112 91.6 19.4 290/1.28 54 .91 Feb. 4 14 00.97 -17 00.3 14 03.71 -17 14.7 2.635 2.966 +0.59 - 3.4 17.9 9.1/112 99.8 19.1 291/1.32 71 .06 14 14 06.83 -17 34.3 14 09.58 -17 48.5 2.508 2.971 +0.39 - 2.2 17.8 6.0/112 108.4 18.4 291/1.33 166 .46 24 14 10.73 -17 56.8 14 13.49 -18 10.8 2.390 2.978 +0.18 - 1.0 17.7 2.7/112 117.4 17.2 292/1.30 22 .88 Mar. 6 14 12.51 -18 06.9 14 15.27 -18 20.8 2.282 2.985 -0.04 + 0.3 17.6 0.7/299 127.0 15.4 293/1.21 100 .05