Nakano Note (Nakano wa Kangaeru noda) NK 2668 P/2010 A2 (LINEAR)
The following improved orbital elements, by S. Nakano, are from 110 observations 2009 Dec. 15 to 2012 Oct. 14. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.99 arc second. See the previous orbits in NK 1904 and NK 1939. Epoch = 2013 May 28.0 TT T = 2013 May 22.35073 +/- 0.04213 (m.e.) TT Peri. = 132.85938 +/- 0.01262 Node = 320.23789 +/- 0.00061 (2000.0) Inc. = 5.25521 +/- 0.00010 q = 2.0037026 +/- 0.0000163 AU e = 0.1252358 +/- 0.0000034 a = 2.2905631 +/- 0.0000090 AU n' = 0.28430904 +/- 0.00000168 P = 3.467 +/- 0.0000205 years T = 2009 Dec. 4.28494 TT Epoch = 2009 Nov. 25.0 TT Peri. = 133.06793 e = 0.1243489 Node = 320.28555 (2000.0) a = 2.2901294 AU Inc. = 5.25502 n'= 0.28438982 q = 2.0053543 AU P = 3.466 years The predicted orbit for the 2016 return is as follows: T = 2016 Nov. 8.28590 TT Epoch = 2016 Nov. 28.0 TT Peri. = 132.87858 e = 0.1244474 Node = 320.22339 (2000.0) a = 2.2899661 AU Inc. = 5.25586 n'= 0.28442023 q = 2.0049857 AU P = 3.465 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2009/ 100112 H06 0.3- 0.3- 100122 213 1.0- 0.7+ 091210 704 (3.6- 1.5-) 100112 H06 0.8+ 1.0- 100123 152 (7.3- 3.0+) 091210 704 (5.1- 0.3-) 100112 H01 0.5- 1.3+ 100123 152 (2.5- 0.1-) 091210 704 (7.9- 1.3+) 100112 H01 0.4- 0.2+ 100123 587 (2.4- 0.9+) 091210 704 (8.3- 0.3-) 100112 H06 (7.7- 1.8-) 100123 587 (4.0- 0.5+) 091210 704(21.4- 6.0+) 100112 H06 (2.6- 1.0-) 100124 900 (6.0- 1.2+) 091215 704 (4.7- 0.6-) 100112 H06 (4.7+ 0.9-) 100124 900 (4.8- 3.0+) 091215 704 (4.7- 0.8-) 100112 291 0.7+ 0.3+ 100125 585 1.6+ 0.7+ 091215 704 (4.4- 0.8-) 100112 H01 1.4- 0.5+ 100125 585 0.9- 1.7+ 091215 704 (4.2- 1.2-) 100112 291 0.2+ 0.0 100201 587 (5.9- 1.4+) 091215 704 1.9- 0.1- 100112 291 1.2+ 1.9- 100201 587 (4.7- 0.6-) 091216 704 (5.5- 0.1+) 100112 291 1.2+ 0.9- 100201 587 (4.6- 0.8-) 091216 704 (2.7- 0.1-) 100112 291 0.0 0.7+ 100202 J38 0.2- 0.3+ 091216 704 (8.7- 1.5+) 100112 H10 0.6- 0.5- 100202 J38 0.7+ 0.9- 091216 704 (9.4- 2.6+) 100112 291 0.7+ 2.0- 100206 213 (3.9+ 0.2-) 091216 704 (8.0- 1.5+) 100112 H10 0.5- 0.2+ 100206 213 (2.5+ 1.6-) 2010/ 100113 B82(11.9- 4.7+) 100206 B49 (2.8- 2.3+) 100106 704 2.2- 0.5- 100113 B82 (0.6+ 6.7+) 100206 B49(10.8- 3.4+) 100106 704 (8.0- 1.2+) 100113 B82 (1.2+ 4.3+) 100207 A77(17.5- 4.0+) 100106 704(18.2- 2.1+) 100113 372 0.3+ 0.0 100207 A77(14.3- 2.8+) 100106 J95 0.8+ 0.4+ 100113 372 1.4- 0.4+ 100207 A77 (9.8- 2.9+) 100106 J95 0.4+ 0.5+ 100113 372 0.0 1.0+ 100207 B82 (5.3- 2.9+) 100107 J95 0.1- 0.6- 100113 355 1.6- 0.8- 100207 B82(10.4- 0.2-) 100107 H01 0.0 0.0 100113 355 0.3- 0.4+ 100207 B82 (5.9- 1.1-) 100107 H06 1.2+ 0.2- 100114 809 1.7+ 0.1- 100213 850 (4.1+ 0.0 ) 100107 H06 (2.3+ 0.9-) 100114 809 1.0+ 0.2- 100213 850 1.9+ 0.6- 100107 H01 (3.3- 2.0+) 100114 809 0.8+ 0.2- 100214 850 (4.3+ 2.5-) 100107 H01 0.0 1.1+ 100114 809 1.1+ 0.0 100214 850 (5.1+ 3.6-) 100107 H01 0.6- 1.2+ 100114 809 1.1+ 0.0 100216 809 (6.8+ 0.0 ) 100107 H01 0.4+ 1.2+ 100114 809 1.2+ 0.3+ 100219 H21 1.6- 1.2- 100107 H01 0.6- 1.6+ 100114 809 1.0+ 0.4- 100219 H21 1.5- 1.7- 100107 G96 1.8+ 0.5- 100114 809 1.2+ 0.2+ 100221 850 (3.7- 1.8+) 100107 G96 0.1+ 0.1- 100114 809 0.9+ 0.1- 100221 850 (3.4+ 2.2-) 100107 G96 0.4+ 0.0 100114 809 0.9+ 0.1- 100304 H21 (4.0+ 0.0 ) 100107 G96 (2.9+ 1.3-) 100114 349 0.5+ 1.2- 100304 H21 (3.9+ 0.4-) 100107 372 0.0 0.6- 100114 900(21.4- 5.2+) 100304 H21 (3.3+ 1.0-) 100107 372 0.2- 0.6- 100114 900 (8.4- 4.8+) 100304 B82 0.3+ 0.5- 100107 349 1.3- 0.7- 100114 349 0.6- 0.2- 100304 B82 0.5+ 0.2- 100107 349 0.8- 1.6- 100115 213 (2.6- 0.1+) 100304 B82 2.1- 1.6+ 100107 J95 1.3- 0.7- 100115 213 (2.5- 0.0 ) 100304 B82 1.8- 0.2+ 100107 J95 0.5- 1.4- 100115 213 0.8- 0.6- 100305 850 0.9+ 2.0- 100107 J95 0.6- 0.1- 100115 A77 (7.4- 0.9+) 100305 850 (2.4+ 1.1+) 100108 291 0.8+ 0.8- 100115 A77 (5.3- 0.7+) 100306 B82(13.9- 2.6+) 100108 291 0.2+ 0.2- 100115 A77 (5.7- 0.6+) 100306 B82(13.7- 4.3+) 100108 291 0.2+ 1.1- 100115 235 (5.9- 1.2+) 100306 B82(11.4- 3.1+) 100109 J47 (5.2- 0.7+) 100116 204 (5.7- 1.1+) 100307 850 (7.2- 0.6+) 100109 J47 (4.6- 1.5+) 100116 204 (3.9- 0.7+) 100307 850 0.3- 0.9+ 100109 J47 (6.1- 1.5+) 100116 H01 1.7+ 0.2+ 100309 C10 1.0- 1.2+ 100109 H06 1.8+ 1.7- 100116 H01 1.1- 1.3+ 100309 C10 (0.4+ 2.3+) 100109 H06 (3.1- 0.3-) 100116 H01 0.1- 0.8+ 100309 C10 (6.7- 2.1+) 100109 H06 (4.4- 0.1-) 100116 H01 0.3+ 0.4+ 100311 B82 (2.5- 2.8+) 100109 H06 (3.3- 0.1-) 100116 H01 2.1- 1.7+ 100311 B82 1.6+ 1.0+ 100109 H06 (4.6- 2.3+) 100117 D92 0.8+ 0.3+ 100311 B82 0.4+ 0.5- 100109 372 (2.9- 0.3-) 100117 D92 1.3+ 0.1- 100313 A77 0.8+ 0.6+ 100109 372 (3.2- 0.1-) 100117 900 (2.7- 0.1-) 100313 A77 1.0+ 1.0+ 100109 J01 (4.3- 0.7+) 100117 900 (2.8- 0.5+) 100313 A77 (2.8- 2.1+) 100109 213 (4.3- 0.5+) 100118 160 1.7- 0.3- 100401 B82 0.7+ 1.2- 100109 213 (2.3- 0.0 ) 100118 160 0.7- 0.3- 100401 B82 0.7- 2.1+ 100109 J40 0.5- 0.4+ 100118 160 0.7- 0.6- 100401 B82 (2.7- 0.1-) 100109 J40 1.4- 0.2+ 100118 160 0.5- 0.1+ 100402 C51(14.7- 5.3+) 100109 J40 1.8- 0.4+ 100118 160 0.3+ 0.3+ 100402 C51(10.5- 4.6+) 100110 213 (2.3- 0.3-) 100119 215 1.0- 0.1+ 100402 C51(13.1- 0.9+) 100110 H01 1.1- 1.1+ 100119 215 (2.7- 0.3+) 100402 C51(14.5- 4.1+) 100110 H01 1.7- 1.9+ 100119 215 (2.7- 0.9+) 100403 C51(12.3- 2.7+) 100110 H01 2.1- 2.0+ 100119 160 (2.4+ 0.3-) 100403 C51(16.0- 4.9+) 100110 H01 (2.9- 0.8+) 100119 160 0.8+ 1.0- 100403 C51 (5.9- 2.5+) 100110 H01 0.1+ 1.2+ 100119 160 1.4+ 1.1- 100403 C51(13.3- 7.2+) 100110 H06 (8.2- 0.7+) 100119 160 1.6+ 1.1- 100417 B82(15.2- 4.6+) 100110 A77 (3.0- 0.6+) 100119 160 1.2+ 0.0 100417 B82(10.6- 4.4+) 100110 A77 (2.6- 0.4+) 100121 104 (2.6- 1.3+) 100417 B82(14.4- 4.1+) 100110 A77 (3.2- 0.0 ) 100121 104 (3.6- 1.4+) 2012/ 100110 A77 (2.5- 0.0 ) 100121 104 (3.7- 1.0+) 121014 568 0.1+ 0.3+ 100111 349 0.9- 0.7+ 100121 204 1.5+ 1.6- 121014 568 0.0 0.3+ 100111 349 1.8- 1.4+ 100121 204 1.7+ 0.6- 121014 568 0.4- 0.1- 100111 A77 (5.6- 0.3+) 100122 F65 (6.1+ 0.8+) 100112 H01 1.2+ 0.5+ 100122 213 0.2- 0.4+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2014 Apr. 7