Nakano Note (Nakano wa Kangaeru noda) NK 5162 P/2023 X4 (Hogan)
The following improved orbital elements, by S. Nakano, are from 44 observations 2023 Sept. 20 to 2024 Jan. 3. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.39 arc second. See an orbit in CBET 5327. Epoch = 2024 May 10.0 TT T = 2024 May 24.72257 +/- 0.04492 (m.e.) TT Peri. = 100.53441 +/- 0.00976 Node = 28.76530 +/- 0.00116 (2000.0) Inc. = 11.59479 +/- 0.00011 q = 3.6581078 +/- 0.0001477 AU e = 0.6308690 +/- 0.0000289 a = 9.9100539 +/- 0.0008736 AU n' = 0.03159294 +/- 0.00000418 P = 31.197 +/- 0.0041254 years (+/- 1.51 days) The predicted orbit for the 2055 return is as follows: T = 2055 Aug. 4.21895 TT Epoch = 2055 July 27.0 TT Peri. = 100.76392 e = 0.6299555 Node = 28.70184 (2000.0) a = 9.8704173 AU Inc. = 11.60112 n'= 0.03178343 q = 3.6524932 AU P = 31.010 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2023/ 231213 G96 0.0 0.2+ 231218 A77 0.2+ 0.5- 230920 F51 0.2- 0.0 231213 G96 0.1- 0.3+ 231218 A77 0.5+ 0.5+ 230920 F51 0.0 0.1- 231213 G96 0.1- 0.0 231218 215 0.3- 0.4- 230920 F51 0.0 0.2+ 231213 I52 0.2+ 0.1- 231218 215 0.3- 0.3- 230920 F51 0.3+ 0.1+ 231213 G96 0.3+ 0.0 231218 215 0.2- 0.3- 231016 F52 0.2+ 0.1+ 231213 I52 0.3+ 0.0 231218 A77 0.2+ 0.5+ 231016 F52 0.1+ 0.7+ 231213 G96 0.3+ 0.1+ 231231 G96 0.1- 0.1- 231016 F52 0.1+ 0.1- 231213 I52 0.1+ 0.0 231231 G96 0.0 0.2+ 231016 F52 0.1+ 0.1- 231213 I52 0.2- 0.2+ 231231 G96 0.1- 0.4- 231022 G96 0.8- 0.3- 231214 W62 0.0 0.1+ 231231 G96 0.0 0.1+ 231022 G96 0.3+ 0.4- 231214 W62 0.1- 0.1- 2024/ 231022 G96 0.0 0.2- 231214 W62 0.4- 0.1+ 240101 Q21 1.1- 0.9- 231022 G96 0.2- 0.4- 231217 L27 0.9- 1.3+ 240101 Q21 0.1- 0.7- 231213 G96 0.1- 0.2+ 231217 L27 1.4+ 0.8+ 240103 F51 0.4+ 0.3+ 231213 G96 0.5- 0.2+ 231217 K77 (2.7- 3.3-) 240103 F51 0.4+ 0.4+ 231213 G96 0.0 0.2- 231217 K77 (1.3- 4.1-) 240103 F51 0.4+ 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Jan. 14