Nakano Note (Nakano wa Kangaeru noda) NK 5451 P/2024 L1 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 100 observations 2024 Apr. 30 to 2025 June 19. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.42 arc second. See an orbit in CBET 5402. Epoch = 2025 May 5.0 TT T = 2025 Apr. 23.20395 +/- 0.00991 (m.e.) TT Peri. = 171.80048 +/- 0.00099 Node = 45.13936 +/- 0.00003 (2000.0) Inc. = 99.16693 +/- 0.00004 q = 5.3481020 +/- 0.0000180 AU e = 0.5335577 +/- 0.0000091 a = 11.4657313 +/- 0.0002260 AU n' = 0.02538642 +/- 0.00000075 P = 38.824 +/- 0.0011477 years (+/- 0.42 day) The predicted orbit for the 2064 return is as follows: T = 2064 Jan. 22.60060 TT Epoch = 2064 Feb. 10.0 TT Peri. = 171.63984 e = 0.5349749 Node = 45.12871 (2000.0) a = 11.5217760 AU Inc. = 99.07016 n'= 0.02520142 q = 5.3579147 AU P = 39.109 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 240602 071 0.2- 0.1- 240629 F51 0.2- 0.6- 240430 G96 0.2+ 0.2- 240602 071 0.0 0.0 240629 F51 0.1- 0.4- 240430 G96 0.9+ 0.0 240602 673 0.1+ 0.1+ 240629 F51 0.3- 0.0 240430 G96 0.1+ 0.6- 240602 673 0.0 0.0 240707 658 0.5+ 0.6+ 240501 F51 0.4+ 0.1- 240602 T14 0.1- 0.0 240707 658 0.5+ 0.6+ 240502 F51 0.0 0.1+ 240602 T14 0.1- 0.1- 240707 658 0.4+ 0.7+ 240502 F51 0.1- 0.0 240602 T14 0.2- 0.1- 240707 658 0.3+ 0.3+ 240504 F51 0.3+ 0.1- 240603 673 0.7+ 0.7+ 240707 658 0.3+ 0.4+ 240506 F52 0.1- 0.1+ 240603 673 0.4- 0.6- 240708 215 0.5+ 0.1- 240506 F52 0.1- 0.4+ 240603 L06 0.4+ 0.6- 240708 215 0.0 0.7- 240506 F52 0.2- 0.2+ 240603 L06 0.3+ 0.3- 240708 215 0.6- 1.1- 240506 F52 0.2+ 0.1+ 240603 L06 0.6+ 0.1+ 240708 K77 1.8+ 1.9- 240508 F51 0.2+ 0.1+ 240604 Y66 0.1- 0.7- 240708 K77 (1.6+ 3.2+) 240514 G96 0.2- 0.1+ 240604 Y66 0.5+ 0.4- 2025/ 240514 G96 0.3- 0.2+ 240605 V00 0.1+ 0.1- 250327 G96 0.3- 0.1+ 240514 G96 0.2- 0.3- 240605 V00 0.1- 0.1+ 250327 G96 0.1- 0.0 240514 G96 0.3+ 0.2+ 240605 V00 0.0 0.2- 250327 G96 0.4+ 0.4+ 240514 G96 0.3+ 0.0 240605 V00 0.2- 0.1- 250327 G96 0.5- 0.9+ 240514 G96 0.1+ 0.1- 240605 C82 1.7+ 0.6+ 250402 F51 0.3+ 0.4- 240514 G96 0.1- 0.1- 240605 C82 1.7+ 0.7- 250402 F51 0.2- 0.1- 240518 F51 0.0 0.2+ 240605 587 0.2- 0.2- 250402 F51 0.2+ 0.2- 240521 F51 0.3- 0.2+ 240605 587 0.2- 0.5- 250424 F51 0.2+ 0.1+ 240529 F52 0.2- 0.1+ 240607 F51 0.2- 0.0 250424 F51 0.4- 0.4- 240529 F52 0.1- 0.1+ 240607 F51 0.3- 0.0 250424 F51 0.2- 0.1+ 240529 F52 0.0 0.0 240607 F51 0.2- 0.2- 250424 F51 0.2+ 0.1- 240531 F51 0.2+ 0.1+ 240608 U94 1.5+ 0.0 250428 F51 0.3+ 0.1- 240601 F52 0.1- 0.1- 240608 U94 1.5+ 0.4- 250428 F51 0.0 0.1+ 240601 F52 0.4- 0.0 240613 F51 0.1- 0.0 250428 F51 0.0 0.3- 240601 F52 0.0 0.0 240613 F51 0.4- 0.0 250519 F51 0.0 0.0 240601 F52 0.3- 0.2- 240613 F51 0.3- 0.0 250519 F51 0.2- 0.1+ 240601 F52 0.2- 0.2- 240615 G96 0.2+ 0.0 250519 F51 0.3+ 0.1- 240601 F52 0.2- 0.3- 240615 G96 0.1+ 0.4+ 250619 Q62 0.0 0.5- 240601 F52 0.1- 0.2- 240615 G96 0.0 0.2+ 250619 Q62 0.0 0.5- 240601 F52 0.0 0.1- 240615 G96 0.1- 0.0 240601 F52 0.2- 0.2- 240629 F51 0.6- 0.2- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Oct. 8