Nakano Note (Nakano wa Kangaeru noda) NK 2838 P/McNaught-Hartley (1994 N2 = 2014 M6)
The following improved orbital elements, by S. Nakano, are from 82 observations 1994 to 2015. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.65 arc second. The residuals of recovery observations for 2014 June are +757", -482" and for 2015 March are +1697", +540" from the prediction in NK 1152 (= HICQ 2014) with the delta-T correction = -2.34 days Epoch = 2015 Oct. 25.0 TT T = 2015 Oct. 22.47385 +/- 0.00069 (m.e.) TT Peri. = 313.22395 +/- 0.00010 Node = 35.72487 +/- 0.00008 (2000.0) Inc. = 17.86842 +/- 0.00002 q = 2.4482528 +/- 0.0000012 AU e = 0.6742401 +/- 0.0000002 a = 7.5155125 +/- 0.0000007 AU n' = 0.04783725 +/- 0.00000001 P = 20.603 +/- 0.0000029 years T = 1994 Dec. 8.16631 TT Epoch = 1994 Nov. 24.0 TT Peri. = 312.18834 e = 0.6712517 Node = 36.01164 (2000.0) a = 7.5577020 AU Inc. = 17.64818 n'= 0.04743724 q = 2.4845815 AU P = 20.777 years The predicted orbit for the 2036 return is as follows: T = 2036 May 18.94280 TT Epoch = 2036 May 27.0 TT Peri. = 313.32594 e = 0.6734732 Node = 35.63322 (2000.0) a = 7.4970222 AU Inc. = 17.88613 n'= 0.04801433 q = 2.4479789 AU P = 20.527 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1994/ 940816 413 0.8+ 0.5+ 941219 413 0.7- 0.1- 940705 413 (0.0 2.2+) 940816 413 0.6+ 0.8+ 941219 413 0.4- 0.3- 940706 413 0.1- 1.2+ 940817 413 0.8+ 1.0+ 941220 413 0.5- 0.4- 940706 413 0.3- 1.7+ 940817 413 0.8+ 0.9+ 941220 413 0.6- 0.2- 940707 413 0.1- 0.6+ 940817 413 1.6+ 0.8+ 941222 360 0.1+ 0.3- 940707 413 (0.3- 2.2+) 940826 413 0.2- 0.4+ 941222 360 0.2- 0.2- 940708 675 (2.3- 3.9-) 940826 413 0.2+ 0.2+ 1995/ 940708 675 1.4+ 1.7- 940827 413 0.1+ 0.2+ 950112 413 1.0+ 0.3+ 940708 413 0.6- 1.2- 940827 413 0.0 0.2+ 950112 413 0.0 0.1- 940708 413 (0.9+ 2.0+) 940828 413 0.0 0.4+ 950113 413 0.4- 0.2- 940710 372 (2.2- 1.5-) 940828 413 0.2+ 0.4+ 950113 413 1.1+ 0.2- 940710 372 (1.7- 2.2-) 940917 413 0.2- 0.6+ 950114 413 0.8- 0.0 940711 323 1.5- 0.8- 940917 413 0.3- 1.2+ 950114 413 0.1+ 0.0 940712 360 0.6- 0.6+ 940925 360 0.5- 0.2- 950201 413 0.7+ 1.2- 940712 360 0.4- 0.3+ 940925 360 0.3- 0.1+ 950201 413 1.1+ 0.9- 940715 360 0.6- 0.6+ 941002 360 0.1+ 0.0 950202 413 0.1+ 1.5- 940715 360 0.8- 0.3+ 941002 360 0.2+ 0.4- 950202 413 0.5+ 0.7- 940716 372 0.1+ 1.0- 941024 360 0.7+ 1.0- 951222 693 0.6+ 0.6+ 940720 413 1.2- 0.8+ 941024 360 1.3+ 0.8- 951222 693 0.3+ 0.6+ 940725 413 0.8- 0.4+ 941025 360 0.4- 0.9- 951222 693 0.5+ 0.4+ 940725 413 0.9- 0.4+ 941025 360 0.2- 1.1- 1996/ 940726 413 0.8- 0.7+ 941106 360 1.4+ 1.3- 960121 691 0.9- 0.4+ 940728 897 1.4+ 1.8+ 941106 360 1.3+ 1.2- 960121 691 0.5- 0.6+ 940728 897 (0.4- 2.2-) 941111 413 0.1- 0.5- 2014/ 940728 897 1.1+ 1.1- 941111 413 0.1- 0.4- 140629 F51 0.1- 0.1- 940729 413 1.5- 0.2+ 941111 413 0.3- 0.5- 140629 F51 0.1- 0.1- 940810 413 0.8- 0.1- 941123 360 1.3+ 0.5- 140629 F51 0.0 0.2- 940810 474 1.8- 1.6- 941123 360 1.9+ 0.1+ 140629 F51 0.2- 0.1- 940810 413 0.3- 0.9+ 941127 897 (3.0+ 0.4+) 2015/ 940815 413 0.2+ 0.5+ 941127 897 0.0 0.1- 150331 K95 0.1+ 0.2- 940815 413 0.7- 0.4+ 941127 897 0.1- 0.4+ 150331 K95 0.8+ 0.4- 940815 413 0.6+ 0.5+ 941206 897 (2.6+ 0.4-) 150331 K95 0.1+ 0.7- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 Apr. 3