Nakano Note (Nakano wa Kangaeru noda) NK 4934 224P/LINEAR-NEAT
The following improved orbital elements, by S. Nakano, are from 101 observations 2003 to 2022. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.54 arc second. The comet has passed 0.66 AU from Jupiter on 2006 July 25 UT. Residuals for 2022 re-observations were +40" for Right Ascension and +7" for Declination from the prediction by T. Kobayashi in NK 2508 ( = CH 2023) with the delta-T correction = -0.02 day (Comet wasn't observed in 2016 return). See the previous orbits in YC 2414, NK 1119, NK 1823 and NK 2508. Epoch = 2022 Sept.18.0 TT T = 2022 Sept.29.95600 +/- 0.00048 (m.e.) TT Peri. = 16.66804 +/- 0.00034 Node = 40.03827 +/- 0.00009 (2000.0) Inc. = 13.30563 +/- 0.00004 q = 2.0459830 +/- 0.0000050 AU e = 0.4059141 +/- 0.0000015 a = 3.4439177 +/- 0.0000120 AU n' = 0.15421440 +/- 0.00000081 P = 6.391 +/- 0.0000334 years T = 2003 Sept.16.84215 TT Epoch = 2003 Aug. 29.0 TT Peri. = 9.14074 e = 0.4366584 Node = 43.55533 (2000.0) a = 3.3386532 AU Inc. = 14.72699 n'= 0.16156493 q = 1.8808021 AU P = 6.100 years T = 2010 Jan. 31.83532 TT Epoch = 2010 Feb. 13.0 TT Peri. = 16.09397 e = 0.4163807 Node = 40.52856 (2000.0) a = 3.4090339 AU Inc. = 13.43602 n'= 0.15658750 q = 1.9895779 AU P = 6.294 years [ T = 2016 May 24.60995 TT Epoch = 2016 May 12.0 TT Peri. = 16.32344 e = 0.4159224 Node = 40.47513 (2000.0) a = 3.4127388 AU Inc. = 13.42596 n'= 0.15633258 q = 1.9933043 AU P = 6.305 years ] The predicted orbit for the 2029 return is as follows: T = 2029 Feb. 23.92992 TT Epoch = 2029 Mar. 5.0 TT Peri. = 16.79193 e = 0.4045416 Node = 40.00466 (2000.0) a = 3.4496392 AU Inc. = 13.29230 n'= 0.15383089 q = 2.0541168 AU P = 6.407 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2003/ 031216 673 0.6+ 0.1+ 031230 704 0.9+ 0.0 031120 704 0.0 0.2+ 031216 673 0.5+ 0.3+ 031230 372 0.5+ 0.1- 031120 704 (2.3+ 4.0+) 031216 673 0.4+ 0.3+ 2004/ 031120 704 0.7+ 1.1+ 031216 673 0.1+ 0.3+ 040101 213 0.6- 0.7- 031204 704 0.2+ 0.3+ 031216 673 0.4+ 0.6+ 040101 213 0.6- 0.0 031204 704 0.4+ 1.1- 031216 926 0.2+ 0.4+ 040110 104 1.1- 0.1+ 031204 704 1.1- 0.1+ 031216 926 0.7- 0.3+ 040110 104 0.2+ 0.6- 031204 704 0.6- 0.9- 031216 926 0.8- 0.7- 040110 104 0.1+ 1.1- 031205 704 1.0- 0.4- 031216 J95 0.3+ 0.1- 040117 360 0.0 0.7- 031205 704 0.7+ 0.2- 031216 J95 0.4+ 0.0 040117 360 0.1- 0.1- 031205 704 0.1+ 0.7+ 031216 J95 0.6- 0.1+ 040117 360 0.5+ 0.4- 031214 644 0.5+ 0.7+ 031217 446 1.3- 0.7- 040210 204 0.1- 0.2+ 031214 644 0.4+ 0.5+ 031217 446 0.3- 1.0+ 040215 204 (1.8- 4.9+) 031214 644 0.8+ 0.0 031217 673 0.4+ 0.7+ 2009/ 031214 J95 0.1- 0.7- 031217 673 0.1- 0.5+ 090827 291 0.2+ 0.4- 031214 J95 0.5- 0.1+ 031217 926 0.5+ 0.1- 090827 291 0.0 0.2+ 031214 J95 0.4- 0.9- 031217 926 0.2- 0.0 090827 291 0.3+ 0.2- 031215 966 0.1- 0.2+ 031217 649 0.4- 0.1- 090828 291 0.3- 0.0 031215 J95 0.8+ 0.4- 031217 926 0.1- 0.4+ 090828 291 0.0 0.3+ 031215 966 0.4+ 0.1+ 031217 701 0.7- 1.0+ 090828 291 0.2- 0.2+ 031215 J95 0.1- 0.2- 031217 701 0.0 0.2- 090829 291 0.2- 0.2+ 031215 J95 0.5- 0.4+ 031219 372 1.0+ 0.7+ 090829 291 0.1+ 0.4- 031215 926 0.3- 0.3+ 031219 372 1.2+ 0.7+ 090829 291 0.6- 0.0 031215 926 0.8- 0.0 031219 372 0.1+ 0.1+ 090928 204 0.0 0.4- 031215 926 0.1- 0.1+ 031221 372 0.2+ 1.3+ 091018 204 0.5+ 0.1- 031215 A50 0.4+ 0.5- 031224 213 (1.6- 2.3-) 091019 204 0.4+ 0.0 031215 J95 0.1- 0.5- 031224 213 1.9- 1.9- 091019 215 0.3+ 0.3+ 031215 A50 0.1- 0.3+ 031224 213 0.4+ 0.2+ 091111 130 0.5- 0.3- 031215 A50 0.7- 0.2+ 031228 341 1.4- 1.0- 2022/ 031215 J95 0.4+ 0.3+ 031228 341 1.6+ 1.0+ 221219 H06 0.2+ 0.1- 031215 J95 0.5+ 0.4- 031228 341 1.5+ 0.5+ 221219 H06 0.1+ 0.1+ 031215 A50 0.7- 0.4+ 031228 360 0.1- 0.2- 221219 H06 0.5+ 0.0 031215 A50 (2.3- 1.2+) 031228 360 0.1+ 0.3+ 221229 L59 0.0 0.1+ 031216 854 (2.3+ 1.5+) 031228 360 0.3- 0.1- 221229 L59 0.1- 0.4- 031216 854 0.7- 0.2- 031230 704 0.4- 0.7- 221229 L59 0.2- 0.1- 031216 854 (3.2- 0.4+) 031230 704 0.7+ 0.2- 221229 L59 0.0 0.1- 031216 673 0.9+ 0.2- 031230 704 0.0 0.4- 221229 L59 0.4- 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2023 Jan. 30