117P/Helin-Roman-Alu Orbit by S. Nakano NK 3811 (2019) Observed in 1st half of 2022
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 July 7.80961 3.0396256 0.2554709 8.25 222.95191 58.84177 8.70398 0.200 2022 Aug. 9.0 m1 = 1.5 + 5 log Delta + 21.0 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2022 Jan. 1 16 39.21 -22 44.4 16 42.22 -22 50.1 4.010 3.176 +1.58 - 4.1 15.1 22.1/101 28.1 8.4 276/0.40 3 .05 11 16 54.97 -23 26.4 16 58.00 -23 31.0 3.922 3.163 +1.56 - 3.6 15.0 21.7/100 34.6 10.2 275/0.49 138 .62 21 17 10.56 -24 03.0 17 13.61 -24 06.5 3.823 3.150 +1.53 - 3.1 14.9 21.2/ 99 41.2 11.9 273/0.59 105 .91 31 17 25.87 -24 34.6 17 28.94 -24 37.0 3.713 3.138 +1.49 - 2.6 14.8 20.4/ 98 47.8 13.5 272/0.68 31 .02 Feb. 10 17 40.74 -25 01.7 17 43.82 -25 02.9 3.592 3.126 +1.43 - 2.2 14.7 19.5/ 97 54.6 14.9 270/0.78 160 .63 20 17 55.03 -25 24.8 17 58.12 -25 25.0 3.464 3.115 +1.36 - 1.9 14.6 18.5/ 97 61.5 16.2 269/0.87 79 .88 Mar. 2 18 08.59 -25 44.9 18 11.69 -25 44.1 3.329 3.105 +1.26 - 1.7 14.4 17.2/ 96 68.5 17.3 268/0.97 59 .01 12 18 21.23 -26 03.0 18 24.34 -26 01.4 3.188 3.095 +1.15 - 1.7 14.3 15.6/ 97 75.6 18.1 267/1.05 177 .64 22 18 32.77 -26 20.4 18 35.88 -26 17.9 3.045 3.086 +1.02 - 1.7 14.2 13.9/ 98 83.0 18.7 266/1.13 50 .84 Apr. 1 18 43.01 -26 38.4 18 46.11 -26 35.2 2.901 3.078 +0.87 - 1.9 14.1 11.8/100 90.6 18.9 265/1.20 87 .00 11 18 51.70 -26 58.4 18 54.81 -26 54.5 2.758 3.071 +0.69 - 2.3 13.9 9.5/104 98.5 18.8 265/1.25 152 .66 21 18 58.64 -27 21.7 19 01.76 -27 17.3 2.619 3.064 +0.50 - 2.7 13.8 7.1/113 106.8 18.3 265/1.28 16 .77 May 1 19 03.59 -27 49.3 19 06.72 -27 44.6 2.487 3.058 +0.27 - 3.2 13.7 4.9/132 115.4 17.3 266/1.27 117 .00 11 19 06.33 -28 21.9 19 09.47 -28 17.0 2.366 3.053 +0.04 - 3.7 13.5 3.8/172 124.5 15.8 267/1.22 123 .69 21 19 06.73 -28 59.2 19 09.88 -28 54.3 2.258 3.049 -0.20 - 4.1 13.4 4.9/212 134.0 13.8 269/1.12 21 .70 31 19 04.72 -29 40.2 19 07.89 -29 35.4 2.168 3.045 -0.42 - 4.2 13.3 7.0/232 143.8 11.3 273/0.95 150 .00 June 10 19 00.47 -30 22.4 19 03.66 -30 17.9 2.098 3.043 -0.61 - 4.1 13.3 8.8/242 153.9 8.4 280/0.73 86 .74 20 18 54.37 -31 02.7 18 57.58 -30 58.6 2.052 3.041 -0.73 - 3.5 13.2 10.0/249 163.8 5.4 294/0.47 61 .62 30 18 47.04 -31 37.6 18 50.27 -31 34.1 2.032 3.040 -0.77 - 2.7 13.2 10.2/254 170.9 3.0 336/0.27 172 .01 July 10 18 39.35 -32 04.5 18 42.60 -32 01.5 2.038 3.040 -0.71 - 1.8 13.2 9.2/258 167.8 4.0 39/0.36 45 .80 20 18 32.25 -32 21.7 18 35.51 -32 19.3 2.071 3.040 -0.57 - 0.8 13.2 7.3/263 158.6 7.0 62/0.61 102 .56 30 18 26.53 -32 29.6 18 29.80 -32 27.6 2.129 3.042 -0.37 0.0 13.3 4.7/270 148.6 10.0 72/0.86 136 .02 Aug. 9 18 22.86 -32 29.4 18 26.12 -32 27.6 2.208 3.044 -0.13 + 0.6 13.4 1.8/291 138.6 12.7 77/1.05 6 .86 19 18 21.56 -32 23.0 18 24.83 -32 21.3 2.306 3.047 +0.12 + 1.1 13.5 1.9/ 54 129.0 15.0 80/1.18 138 .52 29 18 22.76 -32 12.0 18 26.02 -32 10.2 2.420 3.051 +0.36 + 1.5 13.6 4.8/ 73 119.8 16.7 82/1.26 102 .03 Sept. 8 18 26.40 -31 57.6 18 29.65 -31 55.5 2.545 3.055 +0.59 + 1.8 13.7 7.7/ 77 111.1 17.9 84/1.29 36 .92 18 18 32.28 -31 40.3 18 35.52 -31 37.9 2.678 3.061 +0.79 + 2.1 13.8 10.3/ 79 102.7 18.7 85/1.28 167 .49 28 18 40.16 -31 20.4 18 43.39 -31 17.4 2.817 3.067 +0.96 + 2.4 14.0 12.6/ 80 94.8 19.0 85/1.24 70 .05 Oct. 8 18 49.80 -30 57.5 18 53.01 -30 53.8 2.958 3.074 +1.11 + 2.7 14.1 14.6/ 80 87.1 18.9 85/1.18 69 .96 18 19 00.92 -30 31.1 19 04.11 -30 26.6 3.099 3.082 +1.23 + 3.1 14.2 16.3/ 80 79.7 18.6 85/1.11 166 .47 28 19 13.28 -30 00.9 19 16.45 -29 55.5 3.239 3.090 +1.34 + 3.6 14.3 17.8/ 79 72.6 17.9 85/1.02 39 .08 Nov. 7 19 26.66 -29 26.1 19 29.80 -29 19.9 3.374 3.099 +1.41 + 4.0 14.5 19.0/ 79 65.6 16.9 85/0.94 97 .98 17 19 40.83 -28 46.6 19 43.95 -28 39.4 3.504 3.109 +1.48 + 4.6 14.6 20.0/ 78 58.8 15.8 84/0.84 144 .46 27 19 55.63 -28 02.0 19 58.71 -27 53.8 3.627 3.120 +1.52 + 5.1 14.7 20.9/ 77 52.1 14.5 84/0.75 10 .13 Dec. 7 20 10.89 -27 12.1 20 13.93 -27 03.0 3.741 3.131 +1.55 + 5.6 14.8 21.5/ 76 45.6 13.0 84/0.65 122 .99 17 20 26.44 -26 17.1 20 29.44 -26 07.1 3.845 3.143 +1.57 + 6.1 14.9 22.1/ 75 39.1 11.4 84/0.56 122 .44 27 20 42.18 -25 17.2 20 45.14 -25 06.3 3.937 3.156 +1.58 + 6.5 15.0 22.5/ 74 32.8 9.7 85/0.47 18 .18 2023 Jan. 6 20 57.98 -24 12.6 21 00.89 -24 00.9 4.018 3.169 +1.57 + 6.9 15.0 22.7/ 73 26.5 8.0 87/0.38 144 .99 16 21 13.74 -23 04.0 21 16.62 -22 51.4 4.086 3.183 +1.56 + 7.3 15.1 22.9/ 72 20.4 6.2 91/0.29 98 .41 26 21 29.40 -21 51.7 21 32.23 -21 38.4 4.140 3.197 +1.54 + 7.6 15.2 22.9/ 71 14.6 4.4 98/0.20 44 .23 Feb. 5 21 44.87 -20 36.5 21 47.66 -20 22.6 4.180 3.212 +1.52 + 7.8 15.2 22.8/ 71 9.4 2.9 116/0.13 165 .99 15 22 00.10 -19 19.2 22 02.85 -19 04.7 4.206 3.227 +1.49 + 7.9 15.3 22.6/ 70 6.7 2.0 157/0.09 73 .36 25 22 15.04 -18 00.4 22 17.76 -17 45.4 4.218 3.243 +1.46 + 8.0 15.4 22.3/ 70 8.9 2.7 201/0.12 69 .27 Mar. 7 22 29.63 -16 41.1 22 32.32 -16 25.7 4.214 3.260 +1.42 + 7.9 15.4 22.0/ 69 13.9 4.2 220/0.19 173 1.00 17 22 43.84 -15 22.1 22 46.50 -15 06.3 4.197 3.277 +1.38 + 7.8 15.4 21.5/ 69 19.7 5.9 228/0.27 46 .29 27 22 57.63 -14 04.1 23 00.27 -13 48.0 4.165 3.294 +1.33 + 7.6 15.5 20.9/ 69 25.7 7.5 233/0.35 91 .30 Apr. 6 23 10.95 -12 48.2 23 13.57 -12 31.8 4.119 3.312 +1.28 + 7.3 15.5 20.2/ 69 31.9 9.2 236/0.43 151 1.00 16 23 23.76 -11 35.0 23 26.36 -11 18.5 4.061 3.330 +1.22 + 7.0 15.5 19.3/ 69 38.2 10.7 238/0.50 18 .22 26 23 36.00 -10 25.6 23 38.58 -10 09.0 3.990 3.349 +1.16 + 6.5 15.5 18.3/ 70 44.6 12.2 239/0.58 114 .32 May 6 23 47.61 -09 20.8 23 50.18 -09 04.1 3.908 3.368 +1.09 + 5.9 15.5 17.2/ 70 51.2 13.5 240/0.66 125 1.00 16 23 58.52 -08 21.4 00 01.08 -08 04.7 3.815 3.387 +1.01 + 5.3 15.5 15.9/ 71 57.9 14.6 242/0.73 13 .15