Nakano Note (Nakano wa Kangaeru noda) NK 1904 P/2010 A2 (LINEAR)
The following improved orbital elements, by S. Nakano, are from 111 observations 2009 Dec. 10 to 2010 Mar. 13. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.96 arc second. Epoch = 2009 Nov. 25.0 TT T = 2009 Dec. 4.60416 +/- 0.04830 (m.e.) TT Peri. = 133.18657 +/- 0.01735 Node = 320.28534 +/- 0.00101 (2000.0) Inc. = 5.25521 +/- 0.00019 q = 2.0055482 +/- 0.0000241 AU e = 0.1243726 +/- 0.0000078 a = 2.2904127 +/- 0.0000149 AU n' = 0.28433705 +/- 0.00000278 P = 3.466 +/- 0.0000339 years The predicted orbit for the 2013 return is as follows: T = 2013 May 22.90172 TT Epoch = 2013 May 28.0 TT Peri. = 132.97723 e = 0.1252591 Node = 320.23770 (2000.0) a = 2.2908475 AU Inc. = 5.25540 n'= 0.28425610 q = 2.0038980 AU P = 3.467 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2009/ 100110 A77 (2.6- 0.5+) 100119 215 (3.2- 0.2+) 091210 704 1.0+ 1.0- 100110 A77 (3.2- 0.2+) 100119 215 (3.3- 0.8+) 091210 704 0.6- 0.2+ 100110 A77 (2.5- 0.1+) 100119 160 1.8+ 0.4- 091210 704 (3.4- 1.8+) 100111 349 0.9- 0.8+ 100119 160 0.3+ 1.1- 091210 704 (3.7- 0.2+) 100111 349 1.8- 1.5+ 100119 160 0.9+ 1.2- 091210 704(16.9- 6.5+) 100111 A77 (5.7- 0.4+) 100119 160 1.0+ 1.2- 091215 704 0.9- 0.1- 100112 H01 1.2+ 0.5+ 100119 160 0.6+ 0.1- 091215 704 0.9- 0.3- 100112 H06 0.4- 0.3- 100121 104 (3.2- 1.1+) 091215 704 0.5- 0.3- 100112 H06 0.7+ 0.9- 100121 104 (4.2- 1.2+) 091215 704 0.4- 0.7- 100112 H01 0.5- 1.4+ 100121 104 (4.3- 0.9+) 091215 704 2.0+ 0.4+ 100112 H01 0.4- 0.3+ 100121 204 0.9+ 1.7- 091216 704 1.8- 0.6+ 100112 H06 (7.8- 1.7-) 100121 204 1.1+ 0.7- 091216 704 1.0+ 0.4+ 100112 H06 (2.7- 0.9-) 100122 F65 (5.5+ 0.7+) 091216 704 (5.0- 2.0+) 100112 H06 (4.6+ 0.8-) 100122 213 0.8- 0.3+ 091216 704 (5.8- 3.0+) 100112 291 0.6+ 0.4+ 100122 213 1.7- 0.5+ 091216 704 (4.4- 1.9+) 100112 H01 1.5- 0.6+ 100123 152 (8.0- 2.8+) 2010/ 100112 291 0.1+ 0.1+ 100123 152 (3.1- 0.3-) 100106 704 1.6- 0.3- 100112 291 1.2+ 1.8- 100123 587 (3.0- 0.8+) 100106 704 (7.4- 1.4+) 100112 291 1.1+ 0.8- 100123 587 (4.6- 0.4+) 100106 704(17.6- 2.3+) 100112 291 0.1- 0.8+ 100124 900 (6.7- 1.0+) 100106 J95 1.2+ 0.6+ 100112 H10 0.7- 0.4- 100124 900 (5.5- 2.9+) 100106 J95 0.8+ 0.7+ 100112 291 0.6+ 1.9- 100125 585 0.9+ 0.5+ 100107 J95 0.3+ 0.4- 100112 H10 0.6- 0.3+ 100125 585 1.5- 1.5+ 100107 H01 0.4+ 0.2+ 100113 B82(12.1- 4.7+) 100201 587 (6.5- 1.1+) 100107 H06 1.6+ 0.0 100113 B82 (0.5+ 6.7+) 100201 587 (5.4- 0.9-) 100107 H06 (2.7+ 0.6-) 100113 B82 (1.1+ 4.4+) 100201 587 (5.2- 1.1-) 100107 H01 (2.9- 2.2+) 100113 372 0.1+ 0.0 100202 J38 0.8- 0.0 100107 H01 0.4+ 1.3+ 100113 372 1.6- 0.5+ 100202 J38 0.1+ 1.2- 100107 H01 0.2- 1.4+ 100113 372 0.2- 1.0+ 100206 213 (3.4+ 0.5-) 100107 H01 0.8+ 1.4+ 100113 355 1.8- 0.7- 100206 213 2.0+ 1.9- 100107 H01 0.2- 1.8+ 100113 355 0.5- 0.5+ 100206 B49 (3.3- 2.0+) 100107 G96 (2.3+ 0.3-) 100114 809 1.5+ 0.0 100206 B49(11.3- 3.1+) 100107 G96 0.5+ 0.1+ 100114 809 0.8+ 0.1- 100207 A77(18.0- 3.7+) 100107 G96 0.8+ 0.2+ 100114 809 0.5+ 0.2- 100207 A77(14.7- 2.5+) 100107 G96 (3.3+ 1.1-) 100114 809 0.8+ 0.0 100207 A77(10.2- 2.6+) 100107 372 0.4+ 0.4- 100114 809 0.9+ 0.0 100213 850 (3.8+ 0.3-) 100107 372 0.2+ 0.4- 100114 809 1.0+ 0.3+ 100213 850 1.6+ 0.9- 100107 349 1.0- 0.5- 100114 809 0.8+ 0.4- 100214 850 (4.0+ 2.7-) 100107 349 0.4- 1.4- 100114 809 1.0+ 0.2+ 100214 850 (4.8+ 3.9-) 100107 J95 1.0- 0.5- 100114 809 0.6+ 0.0 100216 809 (6.6+ 0.3-) 100107 J95 0.2- 1.2- 100114 809 0.6+ 0.0 100219 H21 1.7- 1.4- 100107 J95 0.3- 0.1+ 100114 349 0.2+ 1.2- 100219 H21 1.6- 1.9- 100108 291 1.1+ 0.6- 100114 900(21.7- 5.2+) 100221 850 (3.8- 1.6+) 100108 291 0.5+ 0.0 100114 900 (8.7- 4.8+) 100221 850 (3.3+ 2.4-) 100108 291 0.5+ 1.0- 100114 349 0.9- 0.2- 100304 H21 (4.0+ 0.0 ) 100109 J47 (5.0- 0.9+) 100115 213 (2.9- 0.1+) 100304 H21 (4.0+ 0.3-) 100109 J47 (4.4- 1.6+) 100115 213 (2.8- 0.0 ) 100304 H21 (3.4+ 0.9-) 100109 J47 (5.9- 1.7+) 100115 213 1.2- 0.6- 100304 B82 0.4+ 0.4- 100109 H06 1.9+ 1.6- 100115 A77 (7.7- 0.9+) 100304 B82 0.5+ 0.2- 100109 H06 (2.9- 0.1-) 100115 A77 (5.7- 0.7+) 100304 B82 2.0- 1.7+ 100109 H06 (4.2- 0.0 ) 100115 A77 (6.0- 0.6+) 100304 B82 1.8- 0.3+ 100109 H06 (3.1- 0.1+) 100115 235 (6.2- 1.2+) 100305 850 1.0+ 2.0- 100109 H06 (4.5- 2.4+) 100116 204 (6.1- 1.0+) 100305 850 (2.5+ 1.2+) 100109 372 (2.7- 0.2-) 100116 204 (4.3- 0.7+) 100306 B82(13.9- 2.7+) 100109 372 (3.0- 0.1+) 100116 H01 1.3+ 0.2+ 100306 B82(13.7- 4.5+) 100109 J01 (4.2- 0.8+) 100116 H01 1.4- 1.3+ 100306 B82(11.4- 3.2+) 100109 213 (4.2- 0.7+) 100116 H01 0.5- 0.8+ 100307 850 (7.2- 0.7+) 100109 213 (2.2- 0.1+) 100116 H01 0.1- 0.4+ 100307 850 0.3- 1.0+ 100109 J40 0.4- 0.5+ 100116 H01 (2.4- 1.7+) 100309 C10 1.0- 1.4+ 100109 J40 1.3- 0.3+ 100117 D92 0.4+ 0.3+ 100309 C10 (0.4+ 2.5+) 100109 J40 1.6- 0.6+ 100117 D92 0.9+ 0.1- 100309 C10 (6.7- 2.3+) 100110 213 (2.1- 0.2-) 100117 900 (3.1- 0.1-) 100311 B82 (2.5- 3.1+) 100110 H01 1.0- 1.2+ 100117 900 (3.2- 0.5+) 100311 B82 1.5+ 1.3+ 100110 H01 1.6- 2.0+ 100118 160 (2.2- 0.4-) 100311 B82 0.4+ 0.3- 100110 H01 (2.0- 2.1+) 100118 160 1.2- 0.4- 100313 A77 0.7+ 0.9+ 100110 H01 (2.8- 0.9+) 100118 160 1.2- 0.6- 100313 A77 0.9+ 1.3+ 100110 H01 0.2+ 1.3+ 100118 160 1.1- 0.0 100313 A77 (2.9- 2.4+) 100110 H06 (8.1- 0.9+) 100118 160 0.2- 0.2+ 100110 A77 (3.0- 0.7+) 100119 215 1.5- 0.0 ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Late edition Syuichi Nakano 2010 Mar. 22