Nakano Note (Nakano wa Kangaeru noda) NK 3717 86P/Wild 3

The following improved orbital elements, by S. Nakano, are from 73 observations 1994 to 2015, including planetary perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas, Vesta, and non-gravitational effect of style II. The mean residual is +/- 0.58 arc second. See the previous orbits in NK 390, NK 433, NK 679, NK1199 and NK 2279. Epoch = 2015 Apr. 8.0 TT T = 2015 Apr. 3.31821 +/- 0.00270 (m.e.) TT Peri. = 179.13820 +/- 0.00093 Node = 72.40983 +/- 0.00004 (2000.0) Inc. = 15.47238 +/- 0.00003 q = 2.2635253 +/- 0.0000050 AU e = 0.3718974 +/- 0.0000012 a = 3.6037510 +/- 0.0000103 AU n' = 0.14406946 +/- 0.00000062 P = 6.841 +/- 0.0000293 years A1 = +0.737 +/- 0.208 A2 = +0.06206 +/- 0.00108 T = 1994 July 21.22588 TT Epoch = 1994 July 27.0 TT Peri. = 179.27060 e = 0.3660873 Node = 72.62613 (2000.0) a = 3.6273773 AU Inc. = 15.45304 n'= 0.14266419 q = 2.2994407 AU P = 6.909 years T = 2001 June 18.59086 TT Epoch = 2001 June 20.0 TT Peri. = 179.16115 e = 0.3644805 Node = 72.61299 (2000.0) a = 3.6352374 AU Inc. = 15.43858 n'= 0.14220174 q = 2.3102642 AU P = 6.931 years T = 2008 May 19.99352 TT Epoch = 2008 May 14.0 TT Peri. = 179.15246 e = 0.3659857 Node = 72.58347 (2000.0) a = 3.6294669 AU Inc. = 15.44784 n'= 0.14254100 q = 2.3011341 AU P = 6.915 years The predicted orbit for the 2022 return is as follows: T = 2022 Feb. 7.59841 TT Epoch = 2022 Jan. 21.0 TT Peri. = 179.40475 e = 0.3722215 Node = 72.35579 (2000.0) a = 3.6010573 AU Inc. = 15.47526 n'= 0.14423114 q = 2.2606662 AU P = 6.834 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1994/ 940710 691 0.0 0.5+ 010525 402 0.4+ 1.9+ 940210 691 0.0 0.1+ 940710 691 0.6- 0.6+ 010525 402 1.7- 1.3+ 940210 691 1.0- 0.1- 940713 360 0.1+ 0.2+ 010530 170 (5.2- 1.3-) 940210 691 0.6+ 0.6+ 940713 360 1.0+ 0.5+ 010530 170 (4.4- 4.4-) 940210 691 1.1- 0.7+ 940713 360 0.6+ 0.5+ 010617 320 0.4- 0.2- 940210 691 0.1- 0.3+ 1997/ 010617 320 0.9+ 0.8- 940213 691 1.7- 0.3+ 971230 568 0.7+ 0.6- 010617 320 0.1+ 0.1- 940213 691 0.1+ 1.6+ 971230 568 0.5+ 0.7- 010617 320 0.6+ 1.5- 940413 360 0.2+ 0.1- 2001/ 2008/ 940413 360 0.2- 0.2- 010406 413 0.8+ 0.3- 080510 J24 (1.2- 2.5+) 940501 691 0.0 0.3- 010406 413 0.5+ 0.5- 080510 J24 1.5+ 2.0+ 940501 691 0.1- 0.5- 010406 413 0.7+ 0.2- 080510 J24 (2.5- 2.9+) 940501 691 0.1- 0.5- 010406 413 0.1- 0.3+ 080514 585 (9.1- 8.9+) 940506 372 (4.7- 1.7+) 010417 691 0.5+ 0.2- 080603 J24 0.7+ 1.6+ 940508 360 0.6+ 0.9- 010417 691 0.1+ 0.2- 080603 J24 1.2- 2.0+ 940508 360 0.7- 0.6- 010417 691 0.3- 0.4- 080603 J24 1.6- 1.0+ 940516 360 0.8- 0.5- 010426 829 0.2+ 0.5- 2015/ 940516 360 0.4- 1.0- 010426 829 0.6- 1.1- 150522 F51 0.1- 0.1+ 940601 360 0.8+ 0.3+ 010517 867 0.1- 0.3- 150522 F51 0.1- 0.1- 940601 360 1.0+ 0.3- 010517 867 0.2- 1.1- 150522 F51 0.3- 0.3- 940615 691 0.2+ 0.6+ 010517 867 0.2+ 0.2- 150522 F51 0.1- 0.1- 940615 691 0.6+ 0.2- 010518 867 0.1- 1.2- 150524 F51 0.2+ 0.2- 940615 691 0.1+ 0.3+ 010518 867 0.5+ 0.3- 150524 F51 0.1+ 0.1- 940704 360 0.0 0.6+ 010518 867 0.7+ 0.2- 150524 F51 0.0 0.1+ 940704 360 1.2+ 0.3+ 010521 704 (2.3+ 0.5-) 150620 F51 0.2+ 0.1+ 940706 691 0.0 0.9+ 010521 704 1.1- 0.0 150620 F51 0.1+ 0.1- 940706 691 0.1- 1.2+ 010521 704 0.1+ 0.2- 150620 F51 0.1+ 0.1- 940706 691 0.2- 0.4+ 010521 704 (2.3- 0.5+) 150620 F51 0.0 0.1+ 940710 691 0.0 0.5+ 010525 402 0.4- 0.2- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2018 Dec. 2

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