78P/Gehrels Orbit by S. Nakano NK 3190 (2016) : T is corrected by +0.01 day.
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2026 June 25.08989 2.0045110 0.4628341 7.21 192.79272 210.49434 6.25760 0.200 2026 June 9.0 pre-T: m1 = 1.5 + 5 log Delta + 30.0 log r post-T: m1 = 6.5 + 5 log Delta + 14.0 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 21 33.10 -10 24.2 21 35.78 -10 10.8 3.055 2.443 +1.74 + 7.3 15.6 26.7/ 75 43.8 16.2 67/0.99 88 .84 2026 Jan. 10 21 50.49 -09 12.4 21 53.14 -08 58.3 3.097 2.401 +1.80 + 8.2 15.4 28.0/ 73 38.1 14.6 66/0.88 135 .56 20 22 08.53 -07 51.1 22 11.16 -07 36.3 3.130 2.361 +1.86 + 9.1 15.2 29.1/ 72 32.6 13.0 64/0.77 20 .01 30 22 27.13 -06 21.1 22 29.74 -06 05.7 3.153 2.322 +1.91 + 9.8 15.0 30.1/ 71 27.3 11.2 62/0.67 113 .89 Feb. 9 22 46.23 -04 43.2 22 48.82 -04 27.3 3.167 2.285 +1.95 +10.5 14.8 31.1/ 70 22.2 9.4 61/0.56 118 .55 19 23 05.78 -02 58.2 23 08.36 -02 42.0 3.173 2.249 +2.00 +11.1 14.6 31.9/ 70 17.3 7.5 59/0.44 2 .03 Mar. 1 23 25.76 -01 07.5 23 28.33 -00 51.0 3.171 2.215 +2.04 +11.5 14.4 32.7/ 69 12.6 5.6 56/0.33 136 .93 11 23 46.15 +00 47.8 23 48.71 +01 04.4 3.161 2.182 +2.08 +11.8 14.2 33.4/ 69 8.1 3.7 52/0.22 102 .54 21 00 06.95 +02 46.2 00 09.51 +03 02.9 3.145 2.152 +2.12 +12.0 14.0 33.9/ 69 3.8 1.8 38/0.11 22 .05 31 00 28.16 +04 46.3 00 30.73 +05 02.9 3.123 2.125 +2.16 +12.0 13.8 34.4/ 69 1.8 0.9 308/0.05 156 .95 Apr. 10 00 49.79 +06 46.4 00 52.38 +07 02.6 3.095 2.099 +2.21 +11.8 13.6 34.9/ 70 5.2 2.5 262/0.15 87 .52 20 01 11.85 +08 44.8 01 14.47 +09 00.6 3.063 2.077 +2.25 +11.4 13.5 35.2/ 71 9.0 4.4 254/0.27 44 .09 30 01 34.34 +10 39.6 01 36.99 +10 54.9 3.026 2.057 +2.30 +10.9 13.3 35.4/ 72 12.9 6.3 252/0.39 173 .97 May 10 01 57.26 +12 29.2 01 59.95 +12 43.7 2.987 2.040 +2.34 +10.2 13.2 35.6/ 73 16.7 8.2 251/0.51 72 .49 20 02 20.60 +14 11.6 02 23.33 +14 25.2 2.944 2.027 +2.37 + 9.2 13.0 35.6/ 74 20.4 10.0 252/0.63 65 .15 30 02 44.30 +15 45.0 02 47.07 +15 57.5 2.899 2.016 +2.41 + 8.2 12.9 35.5/ 76 24.1 11.8 252/0.76 170 .98 June 9 03 08.31 +17 07.9 03 11.13 +17 19.2 2.851 2.009 +2.43 + 6.9 12.9 35.3/ 78 27.7 13.6 254/0.88 55 .44 19 03 32.55 +18 18.7 03 35.41 +18 28.6 2.801 2.005 +2.44 + 5.6 12.8 35.0/ 80 31.4 15.3 255/1.01 85 .20 29 03 56.89 +19 16.1 03 59.79 +19 24.6 2.749 2.005 +2.43 + 4.2 12.9 34.6/ 82 35.1 17.0 257/1.14 155 .99 July 9 04 21.18 +19 59.4 04 24.12 +20 06.3 2.694 2.008 +2.41 + 2.7 12.9 34.0/ 84 38.9 18.5 259/1.26 36 .37 19 04 45.28 +20 27.8 04 48.23 +20 33.1 2.638 2.014 +2.37 + 1.2 12.9 33.3/ 87 42.8 20.1 261/1.39 104 .26 29 05 08.97 +20 41.4 05 11.94 +20 45.0 2.578 2.024 +2.31 - 0.3 12.8 32.4/ 89 46.8 21.5 263/1.52 140 1.00 Aug. 8 05 32.08 +20 40.4 05 35.06 +20 42.3 2.516 2.037 +2.23 - 1.6 12.8 31.4/ 92 51.0 22.8 265/1.64 16 .29 18 05 54.39 +20 25.5 05 57.37 +20 25.8 2.451 2.053 +2.13 - 2.9 12.8 30.1/ 95 55.4 23.9 268/1.77 121 .30 28 06 15.70 +19 58.0 06 18.67 +19 56.7 2.383 2.072 +2.01 - 4.0 12.8 28.7/ 97 60.0 25.0 270/1.89 122 1.00 Sept. 7 06 35.82 +19 19.2 06 38.76 +19 16.5 2.312 2.094 +1.87 - 5.0 12.8 27.0/100 64.9 25.8 272/2.00 13 .21 17 06 54.52 +18 31.0 06 57.45 +18 27.0 2.237 2.119 +1.71 - 5.7 12.8 25.0/102 70.2 26.5 274/2.12 139 .33 27 07 11.61 +17 35.5 07 14.50 +17 30.3 2.159 2.146 +1.52 - 6.2 12.8 22.7/105 75.8 26.9 276/2.22 101 1.00 Oct. 7 07 26.87 +16 34.9 07 29.74 +16 28.7 2.079 2.175 +1.32 - 6.4 12.8 20.1/108 81.8 27.1 278/2.31 37 .15 17 07 40.08 +15 31.8 07 42.92 +15 24.6 1.997 2.207 +1.09 - 6.4 12.8 17.0/112 88.4 26.8 280/2.38 158 .34 27 07 50.97 +14 28.6 07 53.78 +14 20.8 1.915 2.241 +0.83 - 6.1 12.8 13.6/116 95.5 26.2 282/2.41 74 .99 Nov. 6 07 59.31 +13 28.3 08 02.10 +13 19.9 1.835 2.276 +0.55 - 5.5 12.8 9.7/124 103.2 25.1 283/2.41 65 .11 16 08 04.83 +12 33.8 08 07.60 +12 25.0 1.758 2.314 +0.25 - 4.6 12.8 5.9/142 111.7 23.4 285/2.35 169 .36 26 08 07.33 +11 47.9 08 10.09 +11 39.0 1.688 2.352 -0.06 - 3.5 12.8 3.6/195 120.9 21.1 287/2.20 41 .97 Dec. 6 08 06.72 +11 13.3 08 09.47 +11 04.4 1.629 2.392 -0.36 - 2.1 12.9 5.7/249 130.8 18.2 290/1.97 97 .09 16 08 03.11 +10 52.2 08 05.85 +10 43.6 1.586 2.433 -0.62 - 0.6 12.9 9.1/266 141.4 14.6 294/1.63 141 .38 26 07 56.92 +10 45.7 07 59.67 +10 37.5 1.562 2.476 -0.80 + 0.8 13.0 11.8/274 152.3 10.6 301/1.20 12 .94 2027 Jan. 5 07 48.93 +10 53.3 07 51.68 +10 45.6 1.562 2.519 -0.87 + 2.0 13.1 13.0/279 163.0 6.6 316/0.75 133 .07 15 07 40.20 +11 13.0 07 42.96 +11 05.8 1.589 2.563 -0.83 + 2.9 13.2 12.5/284 169.8 3.9 1/0.43 102 .41 25 07 31.90 +11 41.5 07 34.68 +11 34.8 1.643 2.607 -0.68 + 3.4 13.4 10.6/289 165.3 5.5 57/0.59 46 .91 Feb. 4 07 25.06 +12 14.9 07 27.84 +12 08.7 1.724 2.652 -0.47 + 3.5 13.6 7.7/297 155.4 8.9 77/0.92 166 .06 14 07 20.39 +12 49.7 07 23.19 +12 43.8 1.830 2.698 -0.21 + 3.3 13.8 4.6/317 144.8 12.2 85/1.19 62 .46 24 07 18.25 +13 22.8 07 21.06 +13 17.2 1.957 2.743 +0.04 + 2.9 14.1 3.0/ 12 134.5 14.9 89/1.36 84 .88 Mar. 6 07 18.68 +13 52.3 07 21.50 +13 46.6 2.102 2.790 +0.28 + 2.4 14.4 4.8/ 60 124.8 17.0 92/1.45 151 .05