Nakano Note (Nakano wa Kangaeru noda) NK 4937 C/2023 A3 (Tsuchinshan-ATLAS)
The following improved orbital elements, by S. Nakano, are from 290 observations 2022 June 8 to 2023 Mar. 16. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.35 arc seconds. See the Ephemeris shown below. The comet will pass 0.47 AU from the Earth on 2024 Oct. 12.5 UT. See an orbit in CBET 5228 which gives plus values of 1/a origin and future. But now new orbit shows the both values are minus as follows. Epoch = 2024 Oct. 17.0 TT T = 2024 Sept.27.64717 +/- 0.13747 (m.e.) TT Peri. = 308.48789 +/- 0.00936 Node = 21.55990 +/- 0.00189 (2000.0) Inc. = 139.10947 +/- 0.00269 q = 0.3914332 +/- 0.0000513 AU e = 1.0001335 +/- 0.0000656 1/a = -0.0003410 +/- 0.0001676 1/AU origin = -0.000111 (Q= 6) future = -0.000152 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 230226 858 0.1+ 0.0 230302 K70 0.1+ 0.3- 220608 W84 0.1- 0.0 230226 Q21 0.9+ 1.0- 230302 M22 0.6+ 0.1- 220608 W84 0.3- 0.0 230226 Q21 0.1+ 0.8- 230302 M22 0.7- 0.2- 220609 W84 0.1+ 0.2- 230226 Q21 0.8+ 1.2+ 230302 M22 0.4+ 0.1+ 220609 W84 0.1- 0.1+ 230226 N88 0.0 0.0 230302 M22 0.0 0.1+ 221222 I41 0.4+ 0.3- 230226 N88 0.0 0.2- 230302 K88 0.4+ 0.3+ 221222 I41 0.3+ 0.2- 230226 N88 0.1+ 0.1+ 230302 K88 0.2+ 0.3+ 221222 I41 0.3+ 0.1- 230226 N88 0.1- 0.1+ 230302 K88 0.3+ 0.4+ 221222 I41 0.2+ 0.0 230226 N88 0.0 0.1+ 230302 056 0.2+ 0.0 221222 I41 0.6+ 0.2- 230226 N88 0.1+ 0.0 230302 056 0.1- 0.1- 2023/ 230227 950 0.5+ 0.1- 230302 056 0.2+ 0.1+ 230109 D29 0.4- 0.3+ 230227 950 0.5+ 0.2- 230302 056 0.1+ 0.1+ 230109 D29 0.6+ 0.4+ 230227 Z21 0.1+ 0.1- 230302 056 1.1- 0.0 230109 D29 0.3+ 0.0 230227 Z21 0.1+ 0.0 230302 G23 1.6+ 0.8+ 230222 M22 0.0 0.1- 230227 W62 0.0 0.0 230302 G23 0.2- 0.1- 230222 M22 0.0 0.1- 230227 W62 0.3+ 0.1+ 230302 056 0.1+ 0.0 230222 M22 0.2- 0.1- 230227 W88 0.0 0.2- 230302 367 0.1+ 0.1+ 230222 M22 0.2+ 0.2+ 230227 W62 0.2+ 0.0 230302 Q21 0.2+ 0.1- 230223 M28 1.1- 0.5+ 230227 W68 0.3+ 0.3+ 230302 367 0.2+ 0.1+ 230223 M28 1.0- 0.6+ 230227 W68 0.0 0.1- 230302 Q21 0.3- 0.1- 230223 M28 1.0- 0.7+ 230227 W88 0.1+ 0.1- 230302 367 0.1+ 0.1+ 230223 W57 0.1+ 0.5+ 230227 W68 0.2+ 0.2+ 230302 367 0.1+ 0.3+ 230223 W57 0.1- 0.6+ 230227 W68 0.4+ 0.1+ 230302 C40 0.1+ 0.4+ 230223 W68 0.1+ 0.1+ 230227 V21 0.2+ 0.1- 230302 C40 0.6+ 0.0 230223 807 0.1- 0.1+ 230227 V21 0.1- 0.1- 230303 C40 0.3+ 0.3+ 230223 W68 0.2- 0.3+ 230227 V21 0.3+ 0.0 230303 C40 0.4+ 0.2+ 230223 807 0.2- 0.1+ 230227 V21 0.1+ 0.3- 230303 C40 0.2- 0.2- 230223 W68 0.3- 0.3- 230227 Q21 0.3- 0.1+ 230303 A77 0.1+ 0.2+ 230223 I47 0.1- 0.3+ 230227 Q21 0.2- 0.2+ 230303 A77 0.2+ 0.3+ 230223 807 0.3+ 0.2+ 230227 349 0.3+ 0.2- 230303 A77 0.1+ 0.3+ 230223 W68 0.3- 0.5+ 230227 Q11 0.2+ 0.1- 230303 W68 0.0 0.3- 230223 I47 0.5+ 0.1+ 230227 900 0.2+ 0.0 230303 W68 0.3+ 0.1+ 230223 Q21 1.3- 1.0+ 230227 900 0.2+ 0.3+ 230303 W68 0.2+ 0.0 230223 Q21 1.0- 0.2- 230227 Q11 0.1+ 0.1- 230303 W68 0.0 0.3- 230223 Q62 0.0 0.1- 230227 900 0.1+ 0.0 230303 X03 0.0 0.2+ 230223 Q62 0.2+ 0.0 230227 349 0.4+ 0.3- 230303 X03 0.1- 0.1+ 230223 Q62 0.3+ 0.2+ 230227 Q11 0.2+ 0.0 230303 X03 0.0 0.0 230224 M28 0.7+ 0.2+ 230227 N88 0.1+ 0.1- 230303 X03 0.2- 0.0 230224 M28 0.6+ 0.2+ 230227 N88 0.2+ 0.3- 230304 K83 0.5+ 1.2- 230224 W89 0.1+ 0.2- 230227 N88 0.1+ 0.1- 230304 K83 0.6+ 0.3+ 230224 W89 0.1+ 0.2- 230227 N88 0.1+ 0.0 230304 K83 0.4- 0.3+ 230224 W89 0.1+ 0.1- 230227 N88 0.1+ 0.0 230304 213 0.6+ 0.4+ 230224 H21 0.1+ 0.0 230227 N88 0.2+ 0.1- 230304 213 1.6+ 0.6+ 230224 H21 0.0 0.1+ 230227 N88 0.3+ 0.1- 230304 213 0.6+ 0.4+ 230224 H21 0.1+ 0.0 230227 N88 0.6+ 0.1+ 230305 595 0.3- 0.0 230224 H21 0.0 0.0 230227 N88 0.2+ 0.3- 230305 595 0.2+ 0.1- 230224 858 0.1- 0.2+ 230227 N88 0.1+ 0.2- 230305 595 0.3+ 0.0 230224 858 0.1+ 0.1+ 230227 N88 0.0 0.1- 230305 K81 0.7+ 0.0 230224 858 0.2+ 0.1+ 230227 N88 0.3+ 0.4- 230305 K81 0.0 0.7- 230224 Q59 0.0 0.2+ 230227 N88 0.0 0.1- 230305 K81 0.1- 0.4+ 230224 Q59 0.0 0.2- 230228 K87 0.1- 0.0 230305 G18 0.1+ 0.0 230224 Q59 0.0 0.0 230228 K87 0.1+ 0.2+ 230305 G18 0.3- 0.5+ 230224 Q62 0.1- 0.1+ 230228 Z21 0.1+ 0.1+ 230305 213 0.1- 0.3- 230224 Q62 0.1- 0.1- 230228 Z21 0.2+ 0.1- 230305 213 0.1+ 0.3- 230224 Q62 0.2- 0.0 230228 K87 0.1- 0.2+ 230305 213 0.1+ 0.2+ 230224 Q21 1.6- 1.6- 230228 Y00 0.2- 0.4- 230306 970 0.0 0.2- 230224 Q21 1.6+ 0.1- 230228 Y00 0.0 0.0 230306 970 0.0 0.1+ 230224 Q21 0.8- 0.7+ 230228 M09 0.2- 0.6+ 230306 W68 0.2+ 0.1- 230225 Z21 0.0 0.2- 230228 Y00 0.1+ 0.0 230306 W68 0.8- 0.1- 230225 Z21 0.0 0.0 230228 M09 0.1+ 0.2+ 230306 W68 0.3- 0.2+ 230225 Z21 0.1+ 0.0 230228 M09 0.9+ 0.4- 230306 W68 0.3+ 0.5+ 230225 W88 0.4- 0.3- 230228 V21 0.3+ 0.5+ 230306 Q62 0.2+ 0.4- 230225 W88 0.1- 0.3- 230228 V21 0.0 0.2- 230306 Q62 0.2- 0.2+ 230225 T05 0.1+ 0.3- 230228 V21 0.1+ 0.0 230306 Q62 0.2+ 0.1- 230225 T05 0.3- 0.2+ 230228 Q21 0.0 0.6+ 230307 W68 0.1- 0.1- 230225 T05 0.5+ 0.2+ 230228 Q21 0.3+ 0.6- 230307 W68 0.2- 0.4- 230225 T05 0.1- 0.1+ 230228 Q21 0.1+ 0.3- 230307 W68 0.1+ 0.5- 230225 Q21 0.1+ 0.4+ 230228 Q62 0.2- 0.2- 230307 W68 0.4- 0.7- 230225 Q21 1.8- 0.0 230228 Q62 0.2+ 0.2+ 230309 M22 0.5+ 0.2- 230225 Q62 0.3+ 0.3- 230228 Q62 0.2+ 0.2- 230309 M22 0.4+ 0.3+ 230225 Q62 0.1+ 0.2- 230301 K91 0.0 0.1+ 230309 M22 0.1+ 0.4+ 230225 Q62 0.2+ 0.1- 230301 K91 0.1- 0.1+ 230309 M22 0.2- 0.2- 230225 Q62 0.2+ 0.1- 230301 K91 0.1- 0.0 230309 I81 0.3- 0.1- 230225 Q62 0.1+ 0.3- 230301 L06 0.0 0.1- 230309 I81 0.5- 0.4- 230225 Q62 0.0 0.0 230301 K91 0.0 0.0 230309 I81 0.0 0.2- 230225 Q62 0.2+ 0.1- 230301 L06 0.1+ 0.5- 230309 Q62 0.1- 0.0 230225 Q62 0.1+ 0.1- 230301 L06 0.2- 0.2- 230309 Q62 0.3- 0.1- 230225 P87 0.1+ 0.2+ 230301 K87 0.1- 0.2- 230309 Q62 0.2- 0.3- 230225 P87 0.4+ 0.0 230301 K87 0.2+ 0.1- 230310 M22 0.4+ 0.4+ 230225 P87 0.0 0.6+ 230301 247 0.4+ 0.2+ 230310 M22 0.1+ 0.2- 230226 J95 0.1- 0.1- 230301 247 0.2+ 0.1+ 230310 M22 0.4+ 0.1+ 230226 J95 0.1- 0.1+ 230301 K87 0.0 0.1- 230310 M22 0.0 0.4- 230226 587 0.0 0.6+ 230301 204 0.1+ 0.2+ 230310 Q21 1.8- 1.2+ 230226 J95 0.1+ 0.1- 230301 J22 0.2- 0.2- 230310 Q21 0.1+ 0.3- 230226 587 0.1- 0.5+ 230301 204 0.6+ 0.5+ 230311 C23 0.4- 0.4- 230226 204 0.4+ 0.5- 230301 J22 0.0 0.0 230311 C23 0.6+ 0.5- 230226 587 0.5- 0.2+ 230301 J22 0.1- 0.1- 230311 C23 0.4- 0.4- 230226 J95 0.1+ 0.1+ 230301 G40 0.2- 0.2- 230312 J47 0.5- 0.2- 230226 204 0.3+ 0.1- 230301 G40 0.3+ 0.2- 230312 J47 0.6- 0.1+ 230226 G06 0.1- 0.1- 230301 X02 0.1+ 0.1- 230312 J47 0.2- 0.6+ 230226 G06 0.2- 0.0 230301 X03 0.1+ 0.1- 230313 K83 0.1- 0.1+ 230226 204 0.4+ 0.0 230301 X03 0.0 0.2- 230313 K83 0.3+ 0.2- 230226 G06 0.4- 0.3+ 230301 X02 0.1+ 0.1- 230313 K83 0.3+ 0.6- 230226 G06 0.1- 0.0 230301 X03 0.1- 0.2- 230316 A77 0.3+ 0.3+ 230226 W88 0.1- 0.2- 230301 W88 0.3+ 0.1+ 230316 A77 0.1- 0.3+ 230226 W88 0.1- 0.2- 230301 W88 0.1+ 0.2- 230316 A77 0.2+ 0.4+ 230226 858 0.1+ 0.1- 230302 K70 0.3+ 0.3- 230226 858 0.0 0.0 230302 K70 0.0 0.1+ ( ) -------- Rejected Obs. 2023/2024 R. A. (2000) Decl. Delta r Daily motion Elong. Phase Mag. 0h TT h m o , AU AU , o o o m1 Mar. 27 15 13.13 +00 14.5 6.262 7.024 8.5/294 136.9 5.6 16.9 Apr. 6 15 07.98 +00 48.9 6.076 6.934 9.7/291 146.7 4.5 16.8 16 15 01.91 +01 23.2 5.919 6.844 10.7/288 155.5 3.5 16.7 26 14 55.12 +01 55.7 5.793 6.754 11.3/285 161.4 2.7 16.6 May 6 14 47.84 +02 24.8 5.699 6.662 11.4/282 161.3 2.8 16.5 16 14 40.37 +02 49.0 5.639 6.571 11.2/279 155.2 3.7 16.4 26 14 33.01 +03 06.8 5.611 6.478 10.5/276 146.4 5.0 16.4 June 5 14 26.06 +03 17.4 5.611 6.385 9.4/272 136.5 6.3 16.3 15 14 19.77 +03 20.4 5.636 6.291 8.1/267 126.4 7.5 16.2 25 14 14.34 +03 15.8 5.681 6.197 6.7/260 116.2 8.5 16.2 July 5 14 09.91 +03 04.0 5.741 6.102 5.3/250 106.2 9.2 16.1 15 14 06.56 +02 45.6 5.809 6.006 4.1/234 96.3 9.7 16.1 25 14 04.31 +02 21.4 5.881 5.910 3.4/211 86.7 9.9 16.1 Aug. 4 14 03.15 +01 52.3 5.951 5.813 3.3/183 77.3 9.8 16.0 14 14 03.03 +01 19.0 6.015 5.715 3.9/161 68.1 9.5 16.0 24 14 03.87 +00 42.4 6.067 5.616 4.7/146 59.1 8.9 15.9 Sept. 3 14 05.61 +00 03.2 6.105 5.517 5.6/137 50.4 8.1 15.8 13 14 08.14 -00 37.8 6.125 5.416 6.4/131 41.8 7.1 15.8 . . . . . . . . Dec. 12 14 51.40 -06 29.4 5.205 4.471 8.1/110 38.0 7.8 14.6 22 14 56.52 -06 56.4 4.978 4.360 7.3/108 46.5 9.4 14.4 Jan. 1 15 01.20 -07 19.0 4.731 4.248 6.3/106 55.3 11.0 14.2 11 15 05.26 -07 36.6 4.467 4.135 4.9/104 64.2 12.4 13.9 21 15 08.43 -07 48.5 4.188 4.020 3.1/100 73.4 13.6 13.7 31 15 10.46 -07 53.8 3.900 3.904 .8/ 75 83.0 14.5 13.4 Feb. 10 15 10.99 -07 51.8 3.607 3.786 2.3/297 92.8 15.1 13.1 20 15 09.61 -07 41.2 3.313 3.667 6.0/290 103.2 15.2 12.7 Mar. 1 15 05.82 -07 20.9 3.025 3.546 10.5/287 114.1 14.8 12.4 11 14 59.06 -06 49.2 2.748 3.423 16.1/286 125.6 13.6 12.0 21 14 48.70 -06 04.7 2.490 3.299 22.4/285 138.0 11.7 11.7 31 14 34.18 -05 06.0 2.260 3.172 29.3/284 151.1 8.7 11.3 Apr. 10 14 15.18 -03 53.2 2.065 3.043 35.8/283 164.5 5.1 10.9 20 13 51.93 -02 28.9 1.915 2.911 40.6/283 171.0 3.1 10.6 30 13 25.50 -00 59.3 1.813 2.777 42.5/282 159.0 7.5 10.2 May 10 12 57.74 +00 26.1 1.762 2.640 40.8/280 143.2 13.2 9.9 20 12 30.92 +01 37.4 1.756 2.501 36.4/278 127.2 18.8 9.7 30 12 06.90 +02 27.9 1.785 2.358 30.4/275 111.8 23.5 9.5 June 9 11 46.72 +02 55.8 1.837 2.211 24.1/272 97.5 27.1 9.3 19 11 30.60 +03 02.3 1.899 2.061 18.6/266 84.2 29.4 9.0 29 11 18.19 +02 50.4 1.959 1.906 14.2/259 71.9 30.5 8.8 July 9 11 08.87 +02 23.1 2.008 1.746 11.1/249 60.4 30.4 8.4 19 11 01.96 +01 42.7 2.037 1.581 9.3/236 49.6 29.3 8.0 29 10 56.76 +00 51.0 2.039 1.410 8.8/225 39.4 27.2 7.5 Aug. 8 10 52.64 -00 10.9 2.007 1.233 9.1/218 29.7 24.0 6.9 18 10 48.90 -01 22.5 1.933 1.048 10.1/217 20.6 19.8 6.1 28 10 44.86 -02 42.7 1.808 0.857 11.4/220 13.2 15.7 5.1 Sept. 7 10 39.95 -04 09.3 1.617 0.663 10.8/221 11.8 18.0 3.8 17 10 35.18 -05 30.8 1.334 0.485 14.1/103 17.7 39.1 2.0 27 10 44.35 -06 02.8 0.937 0.392 133.2/ 86 23.0 87.9 0.3 Oct. 7 12 13.11 -04 02.2 0.550 0.466 309.5/ 85 9.6 159.1 -0.1 17 15 38.48 +01 22.2 0.518 0.638 171.3/ 85 34.2 118.7 1.1 2024/ R. A. (2000) Decl. Delta r Daily motion Elong. Phase Mag. PA/Tail Astron. twilight 10h TT h m o , AU AU , o o o m1 o o o o Oct. 10 13 19.19 -02 17.6 0.484 0.519 331.4/ 84 5.9 168.5 0.1 41/7.85 -12.4 96.1 11 13 41.17 -01 41.7 0.476 0.536 338.0/ 84 10.0 161.1 0.2 57/12.8 -8.1 93.7 12 14 03.58 -01 05.2 0.472 0.554 336.6/ 84 14.6 153.0 0.3 63/17.2 -3.8 91.4 13 14 25.89 -00 29.0 0.474 0.572 327.7/ 84 19.2 144.9 0.5 67/20.3 +0.6 89.0 14 14 47.62 +00 05.6 0.481 0.590 312.7/ 84 23.8 137.1 0.6 69/22.2 +4.8 86.7 15 15 08.35 +00 37.7 0.492 0.609 293.1/ 84 28.0 129.6 0.8 70/22.9 +8.8 84.5 16 15 27.80 +01 06.8 0.507 0.627 271.0/ 84 32.0 122.6 1.0 71/22.9 +12.4 82.4 17 15 45.79 +01 32.6 0.526 0.646 247.9/ 85 35.6 116.1 1.2 71/22.3 +15.8 80.4 18 16 02.26 +01 54.9 0.548 0.665 225.2/ 85 38.9 110.0 1.4 72/21.4 +18.7 78.5 19 16 17.22 +02 14.2 0.573 0.684 203.6/ 85 41.7 104.4 1.6 72/20.3 +21.4 76.9 20 16 30.76 +02 30.5 0.599 0.704 183.6/ 86 44.2 99.3 1.9 72/19.2 +23.6 75.3 21 16 42.98 +02 44.4 0.628 0.723 165.5/ 86 46.4 94.7 2.1 72/18.1 +25.6 73.9 22 16 54.00 +02 56.0 0.658 0.743 149.3/ 86 48.3 90.4 2.3 72/16.9 +27.4 72.6 23 17 03.94 +03 05.8 0.689 0.762 134.9/ 86 49.9 86.4 2.5 72/15.9 +28.8 71.5 24 17 12.94 +03 14.0 0.721 0.781 122.2/ 87 51.2 82.8 2.7 72/14.9 +30.1 70.5 25 17 21.08 +03 20.8 0.754 0.801 111.0/ 87 52.4 79.5 2.9 72/14.0 +31.2 69.6 26 17 28.49 +03 26.6 0.787 0.820 101.1/ 87 53.3 76.4 3.1 72/13.1 +32.1 68.9 27 17 35.23 +03 31.5 0.821 0.840 92.5/ 87 54.1 73.5 3.3 71/12.3 +32.9 68.2 28 17 41.40 +03 35.6 0.855 0.859 84.8/ 88 54.8 70.8 3.5 71/11.6 +33.5 67.7 29 17 47.07 +03 39.1 0.890 0.878 78.1/ 88 55.3 68.3 3.7 71/10.9 +34.1 67.2 30 17 52.28 +03 42.1 0.925 0.898 72.1/ 88 55.7 66.0 3.9 70/10.3 +34.5 66.8 31 17 57.10 +03 44.6 0.959 0.917 66.9/ 88 56.0 63.8 4.0 70/9.72 +34.9 66.5 Nov. 1 18 01.56 +03 46.8 0.994 0.936 62.2/ 88 56.2 61.8 4.2 70/9.19 +35.2 66.2 2 18 05.71 +03 48.7 1.029 0.955 58.0/ 88 56.4 59.9 4.4 69/8.71 +35.4 66.0 3 18 09.59 +03 50.4 1.064 0.974 54.3/ 88 56.4 58.0 4.5 69/8.25 +35.6 65.9 4 18 13.21 +03 52.0 1.099 0.993 51.0/ 88 56.5 56.3 4.7 69/7.83 +35.7 65.8 5 18 16.62 +03 53.3 1.134 1.012 48.0/ 88 56.4 54.7 4.8 68/7.44 +35.7 65.8 6 18 19.82 +03 54.6 1.168 1.031 45.3/ 88 56.3 53.1 5.0 68/7.08 +35.7 65.8 7 18 22.84 +03 55.8 1.203 1.050 42.9/ 88 56.2 51.6 5.1 67/6.74 +35.7 65.8 8 18 25.71 +03 56.9 1.237 1.069 40.7/ 88 56.0 50.2 5.3 67/6.42 +35.7 65.9 9 18 28.42 +03 58.0 1.272 1.088 38.7/ 88 55.8 48.9 5.4 66/6.13 +35.6 66.1 10 18 31.01 +03 59.1 1.306 1.106 36.9/ 88 55.6 47.6 5.5 66/5.85 +35.5 66.2 11 18 33.47 +04 00.1 1.340 1.125 35.2/ 88 55.3 46.4 5.6 65/5.59 +35.3 66.4 12 18 35.83 +04 01.2 1.373 1.143 33.8/ 88 55.0 45.2 5.8 65/5.35 +35.1 66.6 13 18 38.08 +04 02.3 1.407 1.162 32.4/ 88 54.7 44.0 5.9 64/5.12 +34.9 66.9 14 18 40.25 +04 03.4 1.440 1.180 31.1/ 88 54.4 42.9 6.0 64/4.91 +34.7 67.1 15 18 42.33 +04 04.5 1.473 1.198 30.0/ 88 54.0 41.9 6.1 63/4.71 +34.5 67.4 m1 = 4.5 + 5 log + 10.0 log Tail= 0.20 AU, Lati.= +35.5
Associate of the CBAT Syuichi Nakano 2023 Mar. 16