Nakano Note (Nakano wa Kangaeru noda) NK 3290 P/McNaught (2010 J5 = 2017 B2)
The following improved orbital elements, by S. Nakano, are from 113 observations 2005 to 2017. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.60 arc second. Residuals of recovery observations were +47" for Right Ascension and -21" for Declination from the prediction in NK 2120 (= HICQ 2014) with the delta-T correction = -0.09 day. See the previous orbits in NK 1977 and NK 2120. Epoch = 2018 Feb. 11.0 TT T = 2018 Jan. 29.26036 +/- 0.00129 (m.e.) TT Peri. = 146.70025 +/- 0.00022 Node = 65.52129 +/- 0.00010 (2000.0) Inc. = 7.36302 +/- 0.00004 q = 3.7508610 +/- 0.0000016 AU e = 0.0905085 +/- 0.0000003 a = 4.1241299 +/- 0.0000006 AU n' = 0.11768079 +/- 0.00000002 P = 8.375 +/- 0.0000017 years T = 2009 Nov. 6.69568 TT Epoch = 2009 Nov. 25.0 TT Peri. = 150.39115 e = 0.0877768 Node = 65.66623 (2000.0) a = 4.1094174 AU Inc. = 7.35420 n'= 0.11831333 q = 3.7487060 AU P = 8.330 years The predicted orbit for the 2026 return is as follows: T = 2026 Mar. 18.04652 TT Epoch = 2026 Mar. 21.0 TT Peri. = 140.13996 e = 0.0950142 Node = 65.29763 (2000.0) a = 4.0823346 AU Inc. = 7.36513 n'= 0.11949265 q = 3.6944548 AU P = 8.248 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2005/ 100517 H06 0.5+ 0.3+ 100605 046 (2.1+ 1.5+) 051101 691 0.3- 0.6+ 100517 H06 0.1- 0.5+ 100605 046 (2.1+ 1.4+) 051101 691 1.1- 0.4+ 100517 H06 0.7- 0.6+ 100605 046 0.3- 0.2+ 051101 691 0.0 0.6+ 100517 349 0.5- 1.2- 100605 046 0.2+ 0.6- 051101 G96 0.5+ 0.2+ 100517 349 1.2- 1.7- 100606 585 1.2- 0.4- 051101 G96 0.0 0.0 100517 D96 0.5- 0.2- 100606 585 0.3+ 1.1+ 051101 G96 0.1- 0.0 100517 D96 0.4- 0.2- 100611 G96 0.6+ 0.7- 051101 G96 0.2- 0.1- 100518 J75 0.5- 0.5- 100611 G96 0.2+ 0.5- 051204 G96 0.1+ 0.0 100518 J75 0.4- 0.1+ 100611 G96 0.4+ 0.2- 051204 G96 0.0 0.0 100518 J75 0.2- 0.4+ 100611 G96 0.5+ 0.6- 051204 G96 0.4+ 0.1- 100520 H10 0.7- 0.3+ 100611 H10 (3.2+ 0.1-) 051204 G96 0.2- 0.5+ 100520 H10 0.3+ 0.0 100611 H10 (3.2+ 0.6-) 2009/ 100520 H10 0.2- 0.7- 100612 704 (0.4- 2.8+) 090228 G96 0.7- 1.0- 100520 H10 0.5- 0.3- 100612 704 1.3- 1.0+ 090228 G96 0.1- 0.7- 100520 941 0.6- 0.1+ 100612 704 (0.6- 3.4+) 090228 G96 1.3- 0.5- 100520 941 0.3- 0.1- 100612 704 0.1+ 0.4+ 090228 G96 1.4+ 0.3- 100520 941 0.2- 0.2- 100612 461 0.1- 0.6+ 090325 G96 0.2- 0.5- 100521 E12 0.1+ 0.3- 100612 461 1.3+ 0.2+ 090325 G96 1.1- 0.4- 100521 E12 0.0 0.1+ 100618 G96 0.2+ 0.6+ 090325 G96 0.2+ 0.4- 100522 H10 0.8+ 0.3- 100618 G96 0.2+ 0.2+ 090325 G96 0.8- 0.6- 100522 H10 0.2+ 0.4- 100618 G96 0.8+ 0.2+ 2010/ 100522 E12 0.5+ 0.1+ 100618 G96 0.4+ 0.5+ 100512 E12 0.3+ 0.6- 100522 B33 0.0 0.8+ 100619 585 (3.2- 0.3-) 100512 E12 0.1- 0.8+ 100522 B33 0.9- 0.9- 100703 215 (9.4- 3.2+) 100512 E12 0.8- 0.2- 100522 B33 0.7- 0.8- 100703 215 (9.0- 3.0+) 100512 E12 0.2- 0.3+ 100523 585 0.6+ 0.7+ 100703 215 (8.6- 3.2+) 100512 E12 0.5- 0.4- 100523 585 0.8+ 0.8+ 100704 G96 0.6+ 0.4+ 100512 E12 0.4- 0.4- 100523 204 0.2+ 0.1+ 100704 G96 0.5+ 0.3+ 100512 E12 0.5- 0.4- 100524 204 0.3+ 0.1+ 100704 G96 1.2+ 0.4+ 100513 E12 0.3- 0.2+ 100524 H06 1.2- 0.6+ 100704 G96 0.6+ 0.5+ 100513 E12 0.1+ 0.5- 100524 H06 1.5- 0.4+ 100708 A77 (3.6- 4.4+) 100514 E12 0.4- 0.4- 100524 H06 (2.1- 0.0 ) 100708 A77 (0.4- 4.5+) 100514 E12 0.5- 0.1- 100601 H10 0.5+ 0.0 100708 215 (1.7- 4.2+) 100514 D90 0.7+ 0.1+ 100603 926 0.6+ 0.0 100708 215 (1.3- 4.1+) 100514 D90 0.2+ 0.5- 100603 926 0.1- 0.3+ 100708 215 (1.2- 4.1+) 100514 D90 0.2+ 0.3- 100603 926 0.3- 0.4+ 2011/ 100514 D96 0.6- 0.8+ 100603 D96 (1.6- 3.0-) 110608 H15(10.5- 2.9-) 100514 D96 0.2+ 0.7+ 100603 D96 (4.9- 4.9-) 110608 H15(11.0- 2.0-) 100514 D96 0.8- 0.1+ 100603 213 0.1+ 0.0 110826 E07(10.0- 0.6-) 100514 D90 0.1- 0.3+ 100604 213 0.2+ 0.7- 110826 E07 (8.4- 0.1-) 100514 D90 0.2- 0.1+ 100604 213 0.1- 0.4- 2017/ 100515 372 0.2- 0.7- 100604 367 0.4+ 0.3+ 170126 291 0.6+ 1.2+ 100515 372 0.1+ 0.0 100604 367 1.1+ 0.4- 170126 291 0.0 0.9+ 100515 372 0.4- 0.7- 100605 704 (2.1+ 0.1+) 170126 291 0.5+ 0.9+ 100516 J24 1.4+ 0.4- 100605 704 1.5+ 0.2+ 170129 291 0.5+ 0.7+ 100516 J24 (2.0+ 0.1+) 100605 704 1.2+ 0.7+ 170129 291 0.1- 1.3+ 100516 J24 (2.1+ 0.3+) 100605 704 0.5+ 0.5+ 170129 291 1.2+ 0.6+ 100516 J24 0.9+ 1.1+ 100605 704 0.2+ 1.7+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Feb. 3