C/2021 D2 (ZTF) Orbit by S. Nakano NK 4681 (2022) Observed in 2nd half of 2022
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 Feb. 3.97467 2.9462035 1.0016480 125.02723 305.67292 83.80774 0.200 2023 Sep. 13.0 m1 = 9.0 + 5 log Delta + 10.0 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 Dec. 27 08 52.22 +00 37.4 08 54.79 +00 25.9 3.544 4.309 -1.08 - 7.5 18.1 17.9/245 136.3 9.1 304/0.49 157 .18 2023 Jan. 6 08 41.42 -00 38.4 08 43.97 -00 49.3 3.521 4.375 -1.16 - 6.4 18.1 18.5/250 146.5 7.1 315/0.39 45 .99 16 08 29.83 -01 42.8 08 32.37 -01 53.1 3.532 4.442 -1.18 - 5.1 18.2 18.4/254 154.7 5.4 335/0.29 86 .41 26 08 18.07 -02 34.6 08 20.59 -02 44.2 3.580 4.509 -1.13 - 3.8 18.3 17.3/257 158.2 4.7 6/0.25 121 .23 Feb. 5 08 06.81 -03 13.8 08 09.31 -03 22.6 3.664 4.577 -1.02 - 2.7 18.4 15.5/260 155.0 5.2 38/0.27 28 .99 15 07 56.60 -03 41.3 07 59.10 -03 49.5 3.783 4.645 -0.87 - 1.7 18.6 13.2/262 147.4 6.6 58/0.33 124 .36 25 07 47.89 -03 59.2 07 50.38 -04 06.8 3.932 4.713 -0.70 - 1.0 18.7 10.5/264 137.9 8.1 71/0.39 83 .27 Mar. 7 07 40.92 -04 09.9 07 43.41 -04 17.1 4.107 4.782 -0.51 - 0.6 18.9 7.7/266 128.0 9.4 79/0.43 50 1.00 17 07 35.78 -04 16.0 07 38.26 -04 22.8 4.302 4.851 -0.34 - 0.4 19.0 5.0/266 118.2 10.4 86/0.46 149 .29 27 07 32.42 -04 19.9 07 34.90 -04 26.5 4.511 4.921 -0.17 - 0.4 19.2 2.6/262 108.6 11.1 91/0.47 52 .30 Apr. 6 07 30.72 -04 23.6 07 33.20 -04 30.2 4.730 4.990 -0.02 - 0.5 19.4 0.6/212 99.3 11.4 96/0.46 79 1.00 16 07 30.50 -04 28.9 07 32.98 -04 35.4 4.952 5.060 +0.11 - 0.8 19.5 1.8/117 90.5 11.4 100/0.44 135 .22 26 07 31.58 -04 36.9 07 34.06 -04 43.5 5.173 5.130 +0.22 - 1.2 19.7 3.5/110 82.0 11.2 104/0.41 33 .32 May 6 07 33.76 -04 48.6 07 36.24 -04 55.3 5.389 5.201 +0.31 - 1.6 19.8 4.9/110 73.9 10.7 109/0.38 108 1.00 16 07 36.85 -05 04.7 07 39.33 -05 11.7 5.598 5.271 +0.38 - 2.1 20.0 6.1/110 66.2 10.1 113/0.35 106 .15 26 07 40.70 -05 25.8 07 43.16 -05 33.0 5.794 5.341 +0.44 - 2.7 20.1 7.1/112 58.9 9.3 119/0.31 36 .35 June 5 07 45.13 -05 52.1 07 47.59 -05 59.5 5.978 5.412 +0.49 - 3.2 20.2 7.9/114 52.0 8.5 125/0.27 134 .99 15 07 50.01 -06 23.8 07 52.46 -06 31.6 6.145 5.483 +0.52 - 3.8 20.3 8.6/116 45.6 7.6 132/0.24 78 .10 25 07 55.21 -07 01.2 07 57.65 -07 09.3 6.295 5.554 +0.54 - 4.3 20.4 9.1/118 39.9 6.7 141/0.21 53 .37 July 5 08 00.62 -07 44.2 08 03.05 -07 52.7 6.426 5.624 +0.55 - 4.9 20.5 9.5/121 35.1 6.0 152/0.18 147 .96 15 08 06.12 -08 32.9 08 08.54 -08 41.7 6.538 5.695 +0.55 - 5.5 20.6 9.8/124 31.4 5.3 165/0.16 54 .07 25 08 11.62 -09 27.2 08 14.02 -09 36.4 6.629 5.766 +0.54 - 6.0 20.7 10.0/127 29.4 5.0 181/0.15 75 .41 Aug. 4 08 17.00 -10 27.1 08 19.40 -10 36.6 6.700 5.837 +0.52 - 6.6 20.8 10.0/131 29.3 4.9 197/0.14 135 .92 14 08 22.19 -11 32.3 08 24.57 -11 42.1 6.751 5.908 +0.49 - 7.1 20.9 10.1/135 31.2 5.1 213/0.15 39 .05 24 08 27.08 -12 42.9 08 29.44 -12 52.9 6.783 5.979 +0.45 - 7.6 20.9 10.0/139 34.7 5.5 227/0.16 99 .46 Sept. 3 08 31.57 -13 58.3 08 33.91 -14 08.6 6.795 6.050 +0.40 - 8.0 21.0 9.9/144 39.4 6.1 238/0.17 110 .88 13 08 35.57 -15 18.3 08 37.89 -15 28.8 6.790 6.121 +0.34 - 8.4 21.0 9.7/150 45.1 6.7 248/0.19 38 .04 23 08 38.96 -16 42.4 08 41.26 -16 53.1 6.769 6.192 +0.27 - 8.8 21.1 9.6/157 51.3 7.3 256/0.21 122 .52 Oct. 3 08 41.64 -18 09.9 08 43.92 -18 20.8 6.735 6.263 +0.18 - 9.0 21.1 9.4/164 58.0 7.8 263/0.22 86 .84 13 08 43.50 -19 40.1 08 45.76 -19 51.1 6.689 6.333 +0.09 - 9.2 21.1 9.3/172 65.1 8.2 269/0.24 53 .03 23 08 44.43 -21 11.9 08 46.67 -21 22.9 6.634 6.404 -0.01 - 9.2 21.2 9.2/181 72.4 8.5 275/0.25 136 .60 Nov. 2 08 44.34 -22 43.8 08 46.55 -22 54.9 6.575 6.475 -0.12 - 9.1 21.2 9.2/191 79.9 8.7 282/0.26 64 .81 12 08 43.13 -24 14.5 08 45.31 -24 25.5 6.515 6.546 -0.24 - 8.7 21.2 9.3/201 87.4 8.7 288/0.26 75 .02 22 08 40.74 -25 41.8 08 42.90 -25 52.7 6.457 6.616 -0.36 - 8.2 21.3 9.5/210 94.9 8.6 295/0.26 129 .67 Dec. 2 08 37.16 -27 03.6 08 39.29 -27 14.2 6.406 6.687 -0.48 - 7.4 21.3 9.7/220 102.3 8.3 303/0.25 52 .79 12 08 32.43 -28 17.6 08 34.52 -28 27.9 6.366 6.757 -0.58 - 6.3 21.3 9.9/230 109.4 7.9 311/0.24 98 .01 22 08 26.65 -29 21.3 08 28.71 -29 31.3 6.341 6.827 -0.67 - 5.1 21.4 10.1/239 115.8 7.5 321/0.23 105 .74 2024 Jan. 1 08 20.01 -30 12.6 08 22.04 -30 22.3 6.334 6.898 -0.73 - 3.7 21.4 10.1/248 121.4 7.0 333/0.21 54 .78 11 08 12.77 -30 50.1 08 14.78 -30 59.3 6.347 6.968 -0.75 - 2.2 21.4 9.9/257 125.8 6.6 346/0.20 119 .01 21 08 05.26 -31 12.8 08 07.25 -31 21.5 6.383 7.038 -0.74 - 0.8 21.5 9.6/265 128.5 6.3 0/0.19 80 .79 31 07 57.83 -31 20.9 07 59.80 -31 29.2 6.442 7.108 -0.70 + 0.6 21.6 9.0/273 129.3 6.2 15/0.18 70 .77 Feb. 10 07 50.81 -31 15.4 07 52.78 -31 23.2 6.525 7.178 -0.63 + 1.8 21.6 8.3/282 128.2 6.2 31/0.18 124 .00 20 07 44.51 -30 58.2 07 46.47 -31 05.6 6.630 7.247 -0.54 + 2.7 21.7 7.4/291 125.4 6.4 45/0.19 61 .82 Mar. 1 07 39.15 -30 31.7 07 41.12 -30 38.7 6.756 7.317 -0.43 + 3.3 21.8 6.5/301 121.1 6.7 57/0.19 91 .75 11 07 34.87 -29 58.6 07 36.85 -30 05.4 6.899 7.387 -0.31 + 3.7 21.9 5.5/312 115.8 7.0 68/0.19 110 .01 21 07 31.76 -29 21.7 07 33.75 -29 28.3 7.057 7.456 -0.19 + 3.8 22.0 4.6/326 110.0 7.2 78/0.20 56 .84 31 07 29.81 -28 43.6 07 31.81 -28 50.1 7.226 7.525 -0.08 + 3.7 22.1 3.9/344 103.7 7.4 87/0.20 112 .72