Nakano Note (Nakano wa Kangaeru noda) NK 5234 P/2023 X4 (Hogan)
The following improved orbital elements, by S. Nakano, are from 63 observations 2023 Sept. 20 to 2024 Mar. 12. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.37 arc second. See the previous orbits in CBET 5327 and NK 5162. Epoch = 2024 May 10.0 TT T = 2024 May 24.74748 +/- 0.02322 (m.e.) TT Peri. = 100.53942 +/- 0.00489 Node = 28.76536 +/- 0.00053 (2000.0) Inc. = 11.59478 +/- 0.00004 q = 3.6580213 +/- 0.0000626 AU e = 0.6308817 +/- 0.0000247 a = 9.9101583 +/- 0.0006846 AU n' = 0.03159244 +/- 0.00000327 P = 31.198 +/- 0.0032328 years (+/- 1.18 days) The predicted orbit for the 2055 return is as follows: T = 2055 Aug. 4.43627 TT Epoch = 2055 July 27.0 TT Peri. = 100.76894 e = 0.6299688 Node = 28.70190 (2000.0) a = 9.8705391 AU Inc. = 11.60111 n'= 0.03178284 q = 3.6524076 AU P = 31.011 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 I52 0.1+ 0.1- 240101 Q21 0.1- 0.8- 230920 F51 0.2- 0.0 231213 I52 0.2- 0.1+ 240103 F51 0.4+ 0.1+ 230920 F51 0.0 0.1- 231214 W62 0.0 0.1+ 240103 F51 0.4+ 0.2+ 230920 F51 0.0 0.2+ 231214 W62 0.1- 0.2- 240103 F51 0.4+ 0.2+ 230920 F51 0.3+ 0.1+ 231214 W62 0.3- 0.1+ 240117 213 0.5- 0.9+ 231016 F52 0.3+ 0.1+ 231217 L27 0.9- 1.3+ 240117 213 0.0 0.8- 231016 F52 0.1+ 0.7+ 231217 L27 1.4+ 0.8+ 240117 213 0.3- 0.3+ 231016 F52 0.1+ 0.1- 231217 K77 (2.6- 3.4-) 240131 F52 0.0 0.1+ 231016 F52 0.1+ 0.1- 231217 K77 (1.2- 4.2-) 240131 F52 0.0 0.1+ 231022 G96 0.7- 0.3- 231218 A77 0.2+ 0.5- 240131 F52 0.2+ 0.2+ 231022 G96 0.4+ 0.4- 231218 A77 0.5+ 0.5+ 240131 F52 0.0 0.3+ 231022 G96 0.1+ 0.2- 231218 215 0.2- 0.4- 240213 215 0.3- 0.2- 231022 G96 0.1- 0.3- 231218 215 0.3- 0.3- 240213 215 0.2- 0.2- 231213 G96 0.2- 0.2+ 231218 215 0.2- 0.3- 240213 215 0.2- 0.2+ 231213 G96 0.5- 0.1+ 231218 A77 0.2+ 0.4+ 240215 F51 0.2+ 0.5+ 231213 G96 0.1- 0.3- 231224 U94 0.2- 0.4- 240215 F51 0.1+ 0.3+ 231213 G96 0.0 0.1+ 231224 U94 0.2+ 0.1+ 240215 F51 0.1- 0.1- 231213 G96 0.1- 0.3+ 231231 G96 0.1- 0.3- 240312 G96 0.3+ 0.1- 231213 G96 0.2- 0.1- 231231 G96 0.0 0.1+ 240312 G96 0.1+ 0.1- 231213 I52 0.1+ 0.2- 231231 G96 0.0 0.5- 240312 G96 0.1+ 0.2- 231213 G96 0.3+ 0.0 231231 G96 0.0 0.1- 240312 G96 0.2+ 0.3- 231213 I52 0.3+ 0.0 2024/ 231213 G96 0.3+ 0.0 240101 Q21 1.1- 1.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 June 1