C/2025 W1 (Sankovich) Orbit by S. Nakano CBET 5641 (2025) Observed in 2nd half of 2025
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) 2025 Feb. 17.6163 4.169791 1.0 250.6137 95.8850 79.8034 0.200 m1 = 10.0 + 5 log Delta + 8.0 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 05 04.64 -48 54.7 05 05.96 -48 50.7 4.580 4.927 -0.87 +12.8 18.8 15.5/325 105.0 11.1 22/0.46 76 .84 2026 Jan. 10 04 55.85 -46 47.3 04 57.28 -46 42.7 4.645 4.970 -0.66 +14.4 18.9 15.9/334 103.7 11.1 35/0.46 102 .56 20 04 49.14 -44 24.2 04 50.67 -44 19.1 4.726 5.015 -0.45 +15.4 19.0 16.2/342 101.4 11.1 46/0.45 94 .01 30 04 44.57 -41 50.5 04 46.19 -41 45.2 4.822 5.060 -0.25 +15.9 19.0 16.2/350 98.3 11.1 57/0.44 72 .89 Feb. 9 04 42.02 -39 11.5 04 43.73 -39 06.0 4.932 5.105 -0.06 +16.0 19.1 16.0/357 94.5 11.1 67/0.43 114 .55 19 04 41.32 -36 31.5 04 43.10 -36 25.9 5.055 5.152 +0.10 +15.7 19.2 15.8/ 5 90.1 11.1 76/0.42 81 .03 Mar. 1 04 42.24 -33 54.3 04 44.10 -33 48.8 5.187 5.199 +0.24 +15.1 19.3 15.4/ 11 85.2 10.9 84/0.40 79 .93 11 04 44.56 -31 22.8 04 46.48 -31 17.5 5.326 5.247 +0.35 +14.3 19.4 15.1/ 18 80.1 10.7 91/0.39 121 .54 21 04 48.04 -28 59.2 04 50.01 -28 54.1 5.469 5.295 +0.45 +13.4 19.5 14.6/ 24 74.7 10.5 99/0.37 64 .05 31 04 52.49 -26 45.1 04 54.52 -26 40.4 5.614 5.344 +0.53 +12.3 19.6 14.2/ 30 69.3 10.1 106/0.34 95 .95 Apr. 10 04 57.72 -24 41.5 04 59.79 -24 37.1 5.757 5.394 +0.59 +11.2 19.7 13.8/ 36 64.0 9.6 113/0.32 119 .52 20 05 03.57 -22 49.0 05 05.68 -22 45.0 5.896 5.444 +0.64 +10.1 19.7 13.4/ 42 58.8 9.1 120/0.30 51 .09 30 05 09.89 -21 07.7 05 12.03 -21 04.1 6.028 5.495 +0.67 + 9.0 19.8 13.0/ 47 53.8 8.5 128/0.27 112 .97 May 10 05 16.55 -19 37.7 05 18.72 -19 34.6 6.151 5.546 +0.69 + 7.8 19.9 12.6/ 52 49.3 7.9 137/0.25 108 .49 20 05 23.43 -18 18.7 05 25.63 -18 16.2 6.262 5.597 +0.70 + 6.8 20.0 12.1/ 56 45.3 7.4 146/0.23 50 .15 30 05 30.42 -17 10.6 05 32.64 -17 08.5 6.360 5.650 +0.70 + 5.7 20.0 11.6/ 61 42.1 6.9 157/0.21 128 .98 June 9 05 37.43 -16 12.9 05 39.67 -16 11.3 6.444 5.702 +0.69 + 4.7 20.1 11.1/ 65 39.9 6.6 168/0.20 90 .44 19 05 44.35 -15 25.0 05 46.60 -15 24.0 6.512 5.755 +0.68 + 3.8 20.1 10.5/ 69 38.8 6.4 181/0.19 64 .20 29 05 51.09 -14 46.7 05 53.36 -14 46.1 6.562 5.809 +0.65 + 2.9 20.2 9.9/ 73 39.1 6.3 193/0.19 137 .99 July 9 05 57.56 -14 17.1 05 59.84 -14 17.0 6.596 5.862 +0.61 + 2.1 20.2 9.2/ 77 40.7 6.5 206/0.19 69 .37 19 06 03.68 -13 55.9 06 05.97 -13 56.3 6.612 5.917 +0.57 + 1.3 20.3 8.4/ 81 43.5 6.8 217/0.20 85 .26 29 06 09.35 -13 42.4 06 11.64 -13 43.1 6.611 5.971 +0.51 + 0.6 20.3 7.5/ 85 47.5 7.2 227/0.21 134 1.00 Aug. 8 06 14.48 -13 35.8 06 16.77 -13 36.9 6.593 6.026 +0.45 0.0 20.3 6.5/ 90 52.3 7.6 236/0.22 48 .29 18 06 18.97 -13 35.4 06 21.26 -13 36.8 6.559 6.081 +0.38 - 0.5 20.4 5.5/ 96 57.8 8.1 244/0.24 106 .30 28 06 22.72 -13 40.3 06 25.01 -13 42.0 6.512 6.137 +0.29 - 0.9 20.4 4.4/103 64.0 8.5 252/0.25 118 1.00 Sept. 7 06 25.64 -13 49.5 06 27.93 -13 51.5 6.452 6.192 +0.20 - 1.3 20.4 3.2/114 70.7 8.8 258/0.26 42 .21 17 06 27.64 -14 02.0 06 29.92 -14 04.0 6.383 6.248 +0.10 - 1.4 20.4 2.0/135 77.8 9.0 264/0.27 126 .33 27 06 28.62 -14 16.2 06 30.90 -14 18.4 6.307 6.305 -0.01 - 1.5 20.4 1.5/186 85.3 9.1 270/0.28 94 1.00 Oct. 7 06 28.53 -14 30.9 06 30.81 -14 33.0 6.228 6.361 -0.12 - 1.3 20.4 2.2/233 93.1 9.0 276/0.28 58 .15 17 06 27.31 -14 44.2 06 29.58 -14 46.3 6.150 6.418 -0.24 - 1.0 20.4 3.6/254 101.1 8.8 283/0.28 138 .34 27 06 24.94 -14 54.2 06 27.21 -14 56.1 6.078 6.475 -0.35 - 0.5 20.4 5.0/265 109.3 8.3 289/0.26 66 .99 Nov. 6 06 21.48 -14 59.1 06 23.75 -15 00.8 6.016 6.532 -0.45 + 0.3 20.4 6.5/272 117.4 7.7 297/0.25 86 .11 16 06 17.01 -14 56.9 06 19.27 -14 58.3 5.969 6.589 -0.53 + 1.1 20.4 7.8/278 125.2 7.0 306/0.23 131 .36 26 06 11.69 -14 45.9 06 13.96 -14 46.9 5.941 6.647 -0.59 + 2.1 20.5 8.9/284 132.4 6.3 318/0.20 44 .97 Dec. 6 06 05.76 -14 24.9 06 08.04 -14 25.4 5.936 6.704 -0.63 + 3.2 20.5 9.7/289 138.3 5.6 332/0.18 115 .09 16 05 59.49 -13 53.1 06 01.77 -13 53.1 5.958 6.762 -0.63 + 4.3 20.5 10.1/295 142.1 5.1 349/0.17 108 .38 26 05 53.18 -13 10.6 05 55.48 -13 10.2 6.008 6.820 -0.60 + 5.3 20.6 10.3/301 143.1 5.0 8/0.16 49 .94 2027 Jan. 5 05 47.14 -12 18.3 05 49.46 -12 17.4 6.087 6.878 -0.55 + 6.1 20.6 10.1/307 140.9 5.2 27/0.16 138 .07 15 05 41.64 -11 17.5 05 43.98 -11 16.2 6.195 6.937 -0.47 + 6.8 20.7 9.7/314 136.0 5.7 42/0.18 77 .41 25 05 36.92 -10 10.2 05 39.28 -10 08.6 6.329 6.995 -0.38 + 7.2 20.8 9.1/322 129.4 6.2 55/0.19 77 .91 Feb. 4 05 33.12 -08 58.5 05 35.51 -08 56.6 6.487 7.054 -0.28 + 7.4 20.8 8.5/331 121.6 6.8 64/0.20 139 .06 14 05 30.34 -07 44.5 05 32.75 -07 42.4 6.664 7.112 -0.17 + 7.5 20.9 7.9/341 113.3 7.3 72/0.21 47 .46 24 05 28.62 -06 30.0 05 31.05 -06 27.8 6.856 7.171 -0.07 + 7.3 21.0 7.4/352 104.7 7.7 78/0.22 108 .88 Mar. 6 05 27.92 -05 16.7 05 30.38 -05 14.4 7.059 7.230 +0.03 + 7.1 21.1 7.1/ 4 96.0 7.8 83/0.22 119 .05