C/2021 D2 (ZTF) Orbit by S. Nakano NK 4542 (2021) Observed in 1st half of 2022
Equinox 2000.0 T/TT q (AU) e P Peri. Node Inc. Tail(AU) Epoch 2022 Feb. 3.98885 2.9462233 1.0016272 125.03094 305.68025 83.82705 0.200 2022 Aug. 9.0 m1 = 8.5 + 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 Jan. 1 16 30.99 +70 33.4 16 30.64 +70 27.1 2.690 2.966 +0.79 +21.7 15.4 22.0/ 9 96.4 19.2 329/1.31 94 .05 11 16 39.66 +74 10.1 16 38.55 +74 04.4 2.625 2.956 +0.55 +25.6 15.3 25.7/ 4 99.8 19.1 321/1.33 92 .62 21 16 46.66 +78 25.7 16 44.09 +78 20.4 2.575 2.950 -0.31 +28.9 15.3 28.9/359 102.6 19.0 311/1.35 76 .91 31 16 47.24 +83 15.1 16 40.96 +83 09.6 2.544 2.947 -9.54 +30.3 15.2 31.5/352 104.3 18.9 299/1.36 111 .02 Feb. 10 15 31.64 +88 23.5 15 05.58 +88 12.6 2.537 2.947 -50.98 -14.8 15.2 33.1/322 104.7 18.9 264/1.36 70 .63 20 06 18.32 +85 47.0 06 35.82 +85 45.0 2.558 2.951 -2.06 -33.6 15.2 33.7/189 103.6 19.0 125/1.36 91 .88 Mar. 2 06 06.28 +80 10.2 06 15.26 +80 09.4 2.606 2.958 +0.32 -33.3 15.3 33.4/178 100.9 19.2 110/1.35 110 .01 12 06 11.82 +74 37.1 06 18.42 +74 36.0 2.682 2.968 +0.79 -32.0 15.4 32.2/172 96.8 19.4 101/1.32 48 .64 22 06 20.87 +69 17.8 06 26.36 +69 16.0 2.783 2.982 +0.97 -30.0 15.5 30.6/168 91.6 19.5 95/1.29 119 .84 Apr. 1 06 31.17 +64 18.2 06 36.01 +64 15.7 2.905 2.999 +1.04 -27.8 15.6 28.7/164 85.6 19.4 91/1.23 90 .00 11 06 42.01 +59 41.3 06 46.44 +59 38.0 3.043 3.019 +1.08 -25.4 15.7 26.9/160 79.2 19.0 88/1.15 43 .66 21 06 53.08 +55 27.6 06 57.21 +55 23.7 3.192 3.043 +1.09 -23.2 15.9 25.2/156 72.4 18.3 85/1.07 148 .77 May 1 07 04.19 +51 36.1 07 08.10 +51 31.4 3.348 3.069 +1.09 -21.2 16.0 23.7/152 65.4 17.4 83/0.97 65 .00 11 07 15.27 +48 04.8 07 19.00 +47 59.3 3.505 3.098 +1.08 -19.4 16.1 22.4/149 58.4 16.1 81/0.86 59 .69 21 07 26.22 +44 51.3 07 29.81 +44 45.0 3.660 3.130 +1.07 -17.9 16.3 21.3/146 51.4 14.6 80/0.75 154 .70 31 07 36.99 +41 53.0 07 40.46 +41 46.0 3.809 3.165 +1.04 -16.6 16.4 20.4/143 44.4 12.9 78/0.64 38 .00 June 10 07 47.55 +39 07.7 07 50.91 +39 00.0 3.949 3.202 +1.02 -15.5 16.5 19.7/141 37.4 11.1 77/0.53 85 .74 20 07 57.82 +36 33.3 08 01.10 +36 25.0 4.076 3.242 +0.99 -14.6 16.7 19.0/140 30.5 9.1 74/0.43 130 .62 30 08 07.80 +34 07.9 08 11.00 +33 58.9 4.189 3.284 +0.96 -13.9 16.8 18.4/138 23.7 7.1 69/0.32 14 .01 July 10 08 17.42 +31 49.9 08 20.55 +31 40.4 4.286 3.328 +0.92 -13.2 16.9 17.8/138 17.2 5.2 61/0.23 114 .80 20 08 26.65 +29 38.1 08 29.72 +29 28.1 4.364 3.374 +0.87 -12.7 17.0 17.2/137 11.6 3.5 43/0.15 103 .56 30 08 35.44 +27 31.3 08 38.45 +27 20.8 4.422 3.422 +0.82 -12.3 17.1 16.6/138 8.7 2.6 4/0.11 16 .02 Aug. 9 08 43.74 +25 28.6 08 46.70 +25 17.6 4.461 3.472 +0.77 -12.0 17.2 15.9/138 11.3 3.3 324/0.14 146 .86 19 08 51.48 +23 29.2 08 54.39 +23 17.8 4.479 3.524 +0.71 -11.7 17.2 15.3/140 17.1 4.8 305/0.21 76 .52 29 08 58.59 +21 32.5 09 01.46 +21 20.7 4.476 3.577 +0.64 -11.5 17.3 14.6/142 24.1 6.6 296/0.28 43 .03 Sept. 8 09 04.99 +19 38.0 09 07.82 +19 25.9 4.453 3.632 +0.55 -11.3 17.3 13.8/145 31.5 8.3 292/0.36 177 .92 18 09 10.57 +17 45.2 09 13.37 +17 32.8 4.410 3.688 +0.46 -11.2 17.4 13.0/149 39.3 9.9 289/0.43 50 .49 28 09 15.23 +15 53.9 09 17.99 +15 41.3 4.350 3.746 +0.36 -11.0 17.4 12.2/155 47.5 11.4 288/0.50 73 .05 Oct. 8 09 18.82 +14 03.8 09 21.56 +13 51.0 4.273 3.805 +0.24 -10.9 17.5 11.4/162 56.0 12.6 287/0.56 148 .96 18 09 21.21 +12 14.8 09 23.92 +12 01.9 4.183 3.864 +0.10 -10.8 17.5 10.9/172 64.8 13.5 287/0.61 24 .47 28 09 22.23 +10 27.0 09 24.92 +10 14.0 4.082 3.925 -0.05 -10.6 17.5 10.7/184 73.9 14.1 287/0.65 107 .08 Nov. 7 09 21.71 +08 40.5 09 24.38 +08 27.5 3.976 3.987 -0.22 -10.5 17.5 11.0/198 83.5 14.3 287/0.68 114 .98 17 09 19.49 +06 55.8 09 22.14 +06 43.0 3.868 4.050 -0.41 -10.2 17.5 11.9/211 93.5 14.1 289/0.69 16 .46 27 09 15.44 +05 13.7 09 18.07 +05 01.1 3.764 4.114 -0.60 - 9.8 17.5 13.3/222 103.8 13.5 290/0.67 143 .13 Dec. 7 09 09.50 +03 35.5 09 12.10 +03 23.1 3.672 4.178 -0.78 - 9.2 17.5 14.9/232 114.5 12.4 293/0.64 79 .99 17 09 01.70 +02 02.6 09 04.28 +01 50.7 3.596 4.243 -0.95 - 8.5 17.6 16.6/239 125.4 10.9 298/0.57 47 .44 27 08 52.22 +00 37.2 08 54.79 +00 25.7 3.544 4.309 -1.08 - 7.5 17.6 17.9/245 136.3 9.1 304/0.48 157 .18 2023 Jan. 6 08 41.42 -00 38.6 08 43.97 -00 49.5 3.521 4.375 -1.16 - 6.4 17.6 18.5/250 146.5 7.1 316/0.38 45 .99 16 08 29.83 -01 43.0 08 32.36 -01 53.3 3.532 4.442 -1.18 - 5.1 17.7 18.4/254 154.7 5.4 335/0.29 86 .41 26 08 18.07 -02 34.9 08 20.59 -02 44.4 3.580 4.509 -1.13 - 3.8 17.8 17.3/257 158.2 4.7 6/0.25 121 .23 Feb. 5 08 06.80 -03 14.0 08 09.31 -03 22.8 3.664 4.577 -1.02 - 2.7 17.9 15.5/260 155.0 5.2 38/0.27 28 .99 15 07 56.60 -03 41.5 07 59.10 -03 49.7 3.782 4.645 -0.87 - 1.7 18.1 13.2/262 147.4 6.6 58/0.33 124 .36 25 07 47.89 -03 59.4 07 50.38 -04 07.0 3.932 4.713 -0.70 - 1.0 18.2 10.5/264 137.9 8.1 71/0.39 83 .27 Mar. 7 07 40.92 -04 10.0 07 43.41 -04 17.2 4.107 4.782 -0.51 - 0.6 18.4 7.7/266 128.0 9.4 79/0.43 50 1.00 17 07 35.77 -04 16.2 07 38.26 -04 23.0 4.302 4.851 -0.34 - 0.4 18.5 5.0/266 118.2 10.4 86/0.46 149 .29 27 07 32.41 -04 20.0 07 34.90 -04 26.7 4.511 4.921 -0.17 - 0.4 18.7 2.6/262 108.6 11.1 91/0.47 52 .30 Apr. 6 07 30.72 -04 23.8 07 33.20 -04 30.3 4.730 4.990 -0.02 - 0.5 18.9 0.6/212 99.3 11.4 96/0.46 79 1.00 16 07 30.50 -04 29.1 07 32.98 -04 35.6 4.952 5.060 +0.11 - 0.8 19.0 1.8/117 90.5 11.4 100/0.44 135 .22 26 07 31.58 -04 37.0 07 34.06 -04 43.6 5.173 5.130 +0.22 - 1.2 19.2 3.5/110 82.0 11.2 104/0.41 33 .32 May 6 07 33.76 -04 48.8 07 36.23 -04 55.5 5.389 5.200 +0.31 - 1.6 19.3 4.9/110 73.9 10.7 109/0.38 108 1.00 16 07 36.85 -05 04.9 07 39.32 -05 11.8 5.597 5.271 +0.38 - 2.1 19.5 6.1/110 66.2 10.1 113/0.34 106 .15