117P/Helin-Roman-Alu Orbit by S. Nakano NK 4669 (2022) Observed in 2nd half of 2024
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 July 12.52975 3.0730139 0.2532262 8.35 224.61117 58.82577 8.68453 0.200 2025 May 5.0 m1 = 1.0 + 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 , ¡ ¡ ¡ ¡ ¡ ¡ 2024 Dec. 26 02 48.45 +15 21.7 02 51.22 +15 34.0 3.914 4.615 -0.18 + 0.4 17.9 2.6/278 130.7 9.3 72/0.44 172 .23 2025 Jan. 5 02 46.68 +15 25.2 02 49.45 +15 37.6 4.060 4.632 -0.02 + 1.0 18.0 1.0/341 120.1 10.6 73/0.49 56 .28 15 02 46.45 +15 34.9 02 49.22 +15 47.4 4.221 4.648 +0.13 + 1.6 18.1 2.4/ 49 109.9 11.5 73/0.51 83 .99 25 02 47.70 +15 50.5 02 50.48 +16 02.9 4.390 4.665 +0.27 + 2.1 18.3 4.4/ 61 100.1 12.0 73/0.52 155 .22 Feb. 4 02 50.35 +16 11.6 02 53.13 +16 23.8 4.565 4.681 +0.39 + 2.5 18.4 6.2/ 66 90.6 12.2 73/0.50 18 .35 14 02 54.26 +16 37.2 02 57.06 +16 49.3 4.739 4.696 +0.51 + 2.9 18.5 7.8/ 68 81.5 12.0 73/0.48 115 .98 24 02 59.31 +17 06.7 03 02.11 +17 18.5 4.910 4.712 +0.61 + 3.2 18.6 9.2/ 69 72.7 11.6 74/0.45 125 .19 Mar. 6 03 05.34 +17 39.2 03 08.16 +17 50.6 5.073 4.727 +0.69 + 3.4 18.7 10.4/ 71 64.2 10.9 74/0.41 17 .42 16 03 12.24 +18 13.8 03 15.07 +18 24.9 5.226 4.742 +0.76 + 3.6 18.8 11.4/ 72 56.0 10.0 75/0.37 143 .97 26 03 19.86 +18 49.7 03 22.71 +19 00.4 5.367 4.757 +0.83 + 3.6 18.9 12.2/ 73 48.0 9.0 75/0.32 95 .16 Apr. 5 03 28.10 +19 26.3 03 30.98 +19 36.5 5.493 4.771 +0.88 + 3.6 19.0 12.9/ 73 40.1 7.8 75/0.27 49 .49 15 03 36.85 +20 02.8 03 39.74 +20 12.5 5.602 4.786 +0.92 + 3.5 19.0 13.4/ 74 32.5 6.5 76/0.22 169 .96 25 03 46.00 +20 38.7 03 48.92 +20 47.8 5.693 4.800 +0.95 + 3.4 19.1 13.7/ 75 24.9 5.1 76/0.17 64 .11 May 5 03 55.47 +21 13.6 03 58.41 +21 22.1 5.766 4.813 +0.97 + 3.3 19.1 13.9/ 76 17.5 3.6 76/0.12 77 .54 15 04 05.17 +21 47.0 04 08.12 +21 54.9 5.818 4.827 +0.98 + 3.1 19.2 14.0/ 77 10.2 2.1 74/0.07 164 .95 25 04 14.99 +22 18.6 04 17.97 +22 25.9 5.851 4.840 +0.99 + 2.9 19.2 14.0/ 78 3.0 0.6 60/0.02 33 .07 June 4 04 24.88 +22 48.2 04 27.87 +22 54.8 5.864 4.853 +0.99 + 2.7 19.2 13.9/ 78 4.6 1.0 275/0.03 104 .58 14 04 34.72 +23 15.6 04 37.73 +23 21.5 5.856 4.866 +0.97 + 2.5 19.3 13.6/ 79 11.7 2.4 268/0.08 137 .93 24 04 44.45 +23 40.7 04 47.47 +23 46.0 5.828 4.878 +0.95 + 2.2 19.3 13.2/ 80 19.0 3.9 267/0.13 4 .03 July 4 04 53.96 +24 03.7 04 57.00 +24 08.3 5.781 4.890 +0.92 + 2.0 19.3 12.8/ 80 26.3 5.3 267/0.18 129 .61 14 05 03.16 +24 24.4 05 06.21 +24 28.4 5.715 4.902 +0.88 + 1.8 19.3 12.1/ 81 33.7 6.6 267/0.22 108 .89 24 05 11.95 +24 43.2 05 15.01 +24 46.5 5.632 4.914 +0.83 + 1.6 19.3 11.4/ 81 41.3 7.8 268/0.27 31 .01 Aug. 3 05 20.22 +25 00.1 05 23.30 +25 02.9 5.532 4.925 +0.76 + 1.5 19.3 10.5/ 81 48.9 8.9 268/0.31 155 .64 13 05 27.85 +25 15.6 05 30.93 +25 17.8 5.419 4.937 +0.69 + 1.4 19.2 9.4/ 81 56.8 9.9 268/0.35 76 .84 23 05 34.72 +25 29.9 05 37.81 +25 31.6 5.293 4.947 +0.60 + 1.3 19.2 8.2/ 80 64.8 10.7 269/0.39 62 .00 Sept. 2 05 40.69 +25 43.4 05 43.79 +25 44.7 5.156 4.958 +0.49 + 1.3 19.2 6.8/ 79 73.1 11.2 269/0.42 176 .66 12 05 45.61 +25 56.4 05 48.72 +25 57.4 5.013 4.968 +0.37 + 1.3 19.1 5.2/ 76 81.7 11.6 269/0.45 41 .77 22 05 49.35 +26 09.4 05 52.46 +26 10.0 4.866 4.978 +0.24 + 1.3 19.1 3.5/ 68 90.6 11.6 269/0.46 93 .00 Oct. 2 05 51.76 +26 22.5 05 54.88 +26 22.9 4.719 4.988 +0.10 + 1.3 19.0 1.9/ 44 99.8 11.4 269/0.47 147 .70 12 05 52.73 +26 35.8 05 55.85 +26 36.2 4.576 4.998 -0.06 + 1.3 19.0 1.5/331 109.5 10.9 269/0.46 4 .69 22 05 52.15 +26 49.2 05 55.28 +26 49.7 4.442 5.007 -0.21 + 1.3 18.9 3.2/295 119.5 10.0 268/0.44 125 .00 Nov. 1 05 50.01 +27 02.4 05 53.14 +27 03.0 4.321 5.016 -0.36 + 1.3 18.9 5.0/285 129.9 8.7 267/0.40 112 .73 11 05 46.36 +27 14.8 05 49.49 +27 15.7 4.220 5.025 -0.50 + 1.1 18.8 6.7/280 140.7 7.2 265/0.34 36 .63 21 05 41.36 +27 25.5 05 44.50 +27 26.7 4.141 5.033 -0.61 + 0.9 18.8 8.1/277 151.7 5.3 262/0.26 160 .01 Dec. 1 05 35.31 +27 33.7 05 38.45 +27 35.4 4.090 5.041 -0.67 + 0.6 18.8 8.9/274 162.9 3.3 256/0.17 72 .78 11 05 28.60 +27 38.9 05 31.74 +27 41.1 4.070 5.049 -0.69 + 0.2 18.8 9.2/272 173.4 1.3 237/0.08 75 .59 21 05 21.71 +27 40.8 05 24.84 +27 43.4 4.081 5.057 -0.66 - 0.1 18.8 8.7/270 171.8 1.6 132/0.05 163 .01 31 05 15.14 +27 39.7 05 18.28 +27 42.8 4.124 5.064 -0.58 - 0.3 18.9 7.7/268 161.0 3.6 101/0.14 29 .84 2026 Jan. 10 05 09.37 +27 36.3 05 12.50 +27 39.8 4.197 5.071 -0.46 - 0.4 18.9 6.2/266 149.8 5.6 94/0.23 113 .56 20 05 04.74 +27 31.6 05 07.87 +27 35.5 4.298 5.078 -0.32 - 0.5 19.0 4.3/264 138.6 7.4 90/0.30 125 .01 30 05 01.53 +27 26.9 05 04.65 +27 31.0 4.421 5.085 -0.17 - 0.4 19.1 2.3/260 127.8 8.8 88/0.35 13 .89 Feb. 9 04 59.85 +27 22.9 05 02.98 +27 27.1 4.561 5.091 -0.01 - 0.3 19.1 0.3/210 117.4 9.9 87/0.38 147 .55 19 04 59.74 +27 20.3 05 02.86 +27 24.6 4.715 5.097 +0.14 - 0.1 19.2 1.9/ 93 107.3 10.7 86/0.40 89 .03 Mar. 1 05 01.15 +27 19.5 05 04.27 +27 23.7 4.877 5.102 +0.28 + 0.1 19.3 3.8/ 89 97.5 11.1 85/0.40 51 .93