Nakano Note (Nakano wa Kangaeru noda) NK 4403 P/2011 NO1 (Elenin)
The following improved orbital elements, by S. Nakano, are from 58 observations 2011 June 12 to Aug. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.68 arc second. Epoch = 2011 Feb. 8.0 TT T = 2011 Jan. 20.16375 +/- 0.03419 (m.e.) TT Peri. = 263.43857 +/- 0.00945 Node = 296.11650 +/- 0.00088 (2000.0) Inc. = 15.39138 +/- 0.00561 q = 1.2409628 +/- 0.0000395 AU e = 0.7791561 +/- 0.0000681 a = 5.6191856 +/- 0.0017417 AU n' = 0.07399357 +/- 0.00003440 P = 13.320 +/- 0.0061931 years (+/- 2.26 days) The predicted orbit for the 2024 return is as follows: T = 2024 May 5.53117 TT Epoch = 2024 May 10.0 TT Peri. = 263.54158 e = 0.7788382 Node = 295.83137 (2000.0) a = 5.6235115 AU Inc. = 15.38792 n'= 0.07390821 q = 1.2437057 AU P = 13.336 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2011/ 110710 H21 0.1+ 0.5+ 110717 673 0.2+ 0.4- 110612 F51 0.0 0.5- 110710 H21 0.1- 1.0+ 110717 673 0.7- 0.6+ 110612 F51 0.1+ 0.2- 110711 H21 0.5+ 1.4+ 110718 H21 0.0 0.2+ 110707 H15 1.1+ 1.9+ 110711 H21 1.2+ 1.0+ 110718 H21 0.2- 0.4- 110707 H15 1.0+ 1.3+ 110711 H15 0.8+ 0.0 110718 H21 0.2- 0.3+ 110707 H15 0.8- 0.4+ 110711 H15 0.5+ 0.0 110719 H06 0.6+ 0.6- 110707 H15 (2.6- 0.1-) 110712 204 0.0 0.6- 110719 H06 0.2+ 0.0 110707 H15 1.4- 0.5- 110712 204 0.1+ 0.3- 110720 H06 (2.5- 1.0+) 110707 H15 0.4- 1.3- 110712 H21 0.1+ 0.7- 110720 H06 (3.2- 0.2+) 110707 H15 (4.3- 1.1-) 110712 H21 0.3+ 0.6- 110722 J01 0.3+ 0.2+ 110709 H21 0.5- 0.2+ 110712 H21 0.8+ 0.2- 110722 J01 0.0 0.7+ 110709 H21 0.4- 0.4+ 110712 H36 (9.0- 3.3+) 110722 J01 0.3+ 0.8+ 110709 H21 0.2- 0.5- 110712 H36 1.4- 1.1+ 110723 H15 0.0 0.1+ 110709 H21 0.4- 0.7- 110712 E10 0.1- 1.1- 110723 H15 0.3- 0.3+ 110709 H21 0.4- 0.8- 110712 E10 0.1- 0.7- 110725 H06 0.5+ 0.5- 110709 H36 0.5+ 0.8- 110712 E10 0.2+ 0.6- 110725 H06 0.6+ 1.3- 110709 H15 0.4+ 0.3- 110712 E10 0.2+ 0.5- 110727 H15 0.1+ 1.3- 110709 H15 0.3+ 0.5- 110713 F65 0.1+ 1.4+ 110727 H15 1.0+ 1.1- 110709 H36 1.0- 0.1- 110713 F65 0.1- 1.5+ 110729 H06 0.8- 0.4+ 110709 H15 0.4- 1.1- 110713 F65 0.6- 1.8+ 110729 H06 0.4- 0.4- 110709 H36 0.5- 0.2- 110714 I89 (2.9- 1.1+) 110802 F51 0.4- 0.3+ 110710 H21 0.3+ 0.4+ 110714 I89 (2.4- 1.0+) 110802 F51 0.6- 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 Mar. 19