Nakano Note (Nakano wa Kangaeru noda) NK 2377 P/2012 Q1 (Kowalski)
The following improved orbital elements, by S. Nakano, are from 126 observations 2012 Aug. 28 to Dec. 12. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.57 arc second. Epoch = 2012 Feb. 3.0 TT T = 2012 Feb. 10.86047 +/- 1.23603 (m.e.) TT Peri. = 139.29460 +/- 0.05360 Node = 184.45015 +/- 0.00183 (2000.0) Inc. = 45.16847 +/- 0.00218 q = 9.4829903 +/- 0.0006487 AU e = 0.6382427 +/- 0.0000768 a = 26.2136819 +/- 0.0002230 AU n' = 0.00734365 +/- 0.00000009 P = 134.212 +/- 0.0017124 years (+/- 0.63 day) The predicted orbit for the 2145 return is as follows: T = 2145 Mar. 11.79848 TT Epoch = 2145 Feb. 25.0 TT Peri. = 139.23152 e = 0.6347383 Node = 184.39135 (2000.0) a = 25.9838069 AU Inc. = 45.19152 n'= 0.00744132 q = 9.4908888 AU P = 132.451 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2012/ 120911 H06 0.3+ 0.0 121002 958 (0.8- 4.3-) 120828 G96 0.8- 0.4- 120911 900 0.6+ 0.5+ 121002 958 (2.8- 4.7-) 120828 G96 0.3- 0.3- 120911 900 (3.1+ 3.4+) 121006 157 0.5+ 0.6- 120828 G96 0.3+ 0.1- 120911 372 0.4- 0.4+ 121006 157 1.2+ 1.0- 120828 G96 0.3- 0.2- 120911 372 0.6- 0.2+ 121008 H06 1.5+ 0.1+ 120828 G96 0.3- 0.3- 120913 J24 0.2+ 0.1+ 121008 H06 0.7+ 0.1+ 120828 G96 0.1- 0.4+ 120913 J24 0.7- 0.1+ 121009 372 0.1+ 0.0 120828 G96 0.1+ 0.1- 120913 J24 1.0- 0.3+ 121009 372 0.1+ 0.3+ 120828 G96 0.2- 0.4- 120913 J24 0.2- 0.5+ 121009 372 0.6+ 0.3+ 120830 J95 0.5+ 0.1- 120913 D90 0.1- 0.2- 121010 B96 0.7- 1.1+ 120830 J95 0.7- 0.5+ 120913 D90 0.3+ 0.1- 121010 B96 1.5- 0.7- 120831 H21 0.6- 0.8- 120914 130 1.5+ 0.8+ 121012 372 0.5+ 0.5+ 120831 H21 0.2- 0.1+ 120914 130 0.2+ 0.3+ 121012 372 0.6+ 0.5+ 120831 H21 0.4- 0.1+ 120914 130 1.0- 0.3- 121012 372 0.9+ 0.4- 120902 J95 1.0+ 0.8+ 120914 J01 (2.3- 4.1-) 121019 A32 0.4- 0.9- 120902 J95 0.2+ 0.2+ 120914 J01 (0.6- 3.1-) 121019 A32 0.6- 0.7- 120903 G96 0.0 0.3+ 120914 J01 0.1+ 1.5- 121020 349 0.0 0.4- 120903 G96 0.2- 0.1- 120915 B96 (1.2- 9.1-) 121020 349 0.5- 0.2+ 120903 G96 0.4- 0.7+ 120915 B96 (0.6- 8.2-) 121020 C32 0.0 0.3- 120903 G96 0.1- 0.1+ 120915 B96 (0.6+ 6.7-) 121020 C32 0.4+ 0.0 120903 G96 0.2- 0.8+ 120915 B96 (0.6- 7.0-) 121020 C32 0.8+ 0.2- 120903 G96 0.5- 0.4+ 120915 B96 (0.5+ 6.8-) 121020 246 (1.2+ 2.1+) 120903 G96 0.4+ 0.2- 120915 C10 0.7+ 0.1+ 121020 246 0.6+ 0.1+ 120903 G96 0.6+ 0.2- 120915 C10 0.2- 0.3- 121020 246 1.1- 0.7+ 120904 H21 0.4- 0.0 120915 C23 (1.1+ 6.5-) 121021 D90 0.3- 0.2- 120904 H21 0.4+ 0.8- 120915 C10 0.0 0.2- 121021 D90 0.2- 0.0 120904 H21 0.4+ 0.3+ 120915 C23 (4.0- 5.0-) 121021 D90 0.6- 0.1- 120904 E10 0.0 0.3+ 120917 511 0.3+ 0.4+ 121030 958 (6.4+ 1.8+) 120904 E10 0.0 0.1- 120917 511 0.2+ 0.1+ 121030 958 (6.5+ 4.2+) 120904 E10 0.2- 0.5+ 120917 511 0.2- 0.6+ 121030 958 (7.0+ 2.7+) 120907 J95 0.1- 0.3- 120918 B96 (2.4- 1.2-) 121102 511 1.1- 0.3+ 120907 J95 0.0 0.2- 120918 B96 0.6- 0.9- 121102 511 0.3- 0.3+ 120907 J95 0.2- 0.1- 120918 B96 (4.1- 0.5-) 121105 C32 0.6+ 0.6+ 120908 B96 0.9- 0.4+ 120918 B96 (3.0- 2.2-) 121105 C32 0.0 0.3+ 120908 B96 (2.5+ 1.3+) 120918 J84 0.7+ 0.8- 121105 C32 0.0 0.1+ 120908 B96 0.2- 1.2+ 120918 J84 1.5+ 0.3- 121105 C32 0.0 0.4+ 120908 A71 0.9- 1.1+ 120919 958 0.3+ 1.4- 121106 C10 0.1- 0.5+ 120908 A71 0.1+ 0.3+ 120919 958 0.1+ 0.8- 121106 C10 0.5+ 0.2+ 120908 215 0.3+ 0.4- 120919 958 (0.2+ 2.0-) 121112 349 1.8- 0.5- 120908 215 0.1+ 0.3- 120920 958 1.2- 0.2- 121112 349 1.4- 0.2+ 120908 215 0.1+ 0.3- 120920 958 (2.0- 2.0-) 121112 C32 0.0 0.6+ 120909 C23 0.8+ 0.5+ 120920 958 0.5+ 1.8- 121112 C32 0.2+ 0.1- 120909 C23 0.8+ 1.8+ 120922 511 0.0 0.2+ 121112 C32 0.1+ 0.3+ 120909 246 0.2- 0.2+ 120922 511 0.1- 0.4+ 121115 511 0.5- 0.1- 120909 246 0.1+ 0.4+ 120922 511 0.1+ 0.3+ 121115 511 0.1- 0.5+ 120909 246 0.2+ 0.2+ 120922 958 (0.5- 2.8-) 121116 C10 0.6+ 0.5- 120909 246 0.3+ 0.9- 120922 958 1.7- 1.3- 121116 C10 0.1+ 0.1- 120910 J01 0.3- 0.6- 120922 958 (3.2- 4.1-) 121212 G96 0.1- 0.3+ 120910 J01 (2.0+ 0.2+) 120923 958 (2.0- 2.3-) 121212 G96 0.8+ 0.4- 120911 H06 0.9+ 0.2+ 120923 958 (2.5- 1.8-) 121212 G96 0.5+ 0.1+ 120911 H06 0.7+ 0.1+ 120923 958 0.3- 0.6- 121212 G96 0.2+ 0.3- 120911 H06 0.3+ 0.2- 121002 958 (1.0+ 7.2-) ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2012 Dec. 27