Nakano Note (Nakano wa Kangaeru noda) NK 2279 86P/Wild 3
The following improved orbital elements, by S. Nakano, are from 77 observations 1987 to 2008, 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 +/- 0.83 arc second. T. Kobayashi gives the predicted T= 2015 Apr. 3.33694 TT from a linked orbit 1987-2008. See the previous orbits in NK 390, NK 679 and NK 1199 (= HICQ 2008/2009). Epoch = 2008 May 14.0 TT T = 2008 May 19.99971 +/- 0.00168 (m.e.) TT Peri. = 179.15395 +/- 0.00056 Node = 72.58362 +/- 0.00009 (2000.0) Inc. = 15.44781 +/- 0.00006 q = 2.3011522 +/- 0.0000029 AU e = 0.3659821 +/- 0.0000009 a = 3.6294752 +/- 0.0000019 AU n' = 0.14254051 +/- 0.00000011 P = 6.915 +/- 0.0000054 years A1 = +0.102 +/- 0.184 A2 = +0.08010 +/- 0.00125 T = 1987 Sept. 1.05205 TT Epoch = 1987 Sept. 2.0 TT Peri. = 179.59079 e = 0.3674677 Node = 72.66959 (2000.0) a = 3.6233214 AU Inc. = 15.45585 n'= 0.14290381 q = 2.2918676 AU P = 6.897 years T = 1994 July 21.22605 TT Epoch = 1994 July 27.0 TT Peri. = 179.27015 e = 0.3660830 Node = 72.62628 (2000.0) a = 3.6273810 AU Inc. = 15.45300 n'= 0.14266397 q = 2.2994585 AU P = 6.909 years T = 2001 June 18.59286 TT Epoch = 2001 June 20.0 TT Peri. = 179.16168 e = 0.3644765 Node = 72.61314 (2000.0) a = 3.6352431 AU Inc. = 15.43855 n'= 0.14220140 q = 2.3102823 AU P = 6.931 years The predicted orbit for the 2015 return is as follows: T = 2015 Apr. 3.33203 TT Epoch = 2015 Apr. 8.0 TT Peri. = 179.14073 e = 0.3718940 Node = 72.40999 (2000.0) a = 3.6037650 AU Inc. = 15.47234 n'= 0.14406861 q = 2.2635464 AU P = 6.841 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1987/ 940501 691 0.3+ 0.6- 010417 691 0.6- 0.4+ 870129 691 1.9+ 0.4+ 940506 372 (4.3- 1.6+) 010417 691 1.0- 0.2+ 870129 691 1.8+ 0.5+ 940508 360 1.0+ 1.0- 010426 829 0.5- 0.0 870201 691 0.3- 1.5- 940508 360 0.3- 0.8- 010426 829 1.3- 0.6- 870201 691 0.4+ 1.4- 940516 360 0.4- 0.8- 010517 867 0.8- 0.0 870201 691 0.1+ 0.9- 940516 360 0.0 1.2- 010517 867 0.9- 0.8- 870228 691 0.2- 0.3+ 940601 360 1.1+ 0.1- 010517 867 0.5- 0.1+ 870228 691 0.4- 0.1+ 940601 360 1.3+ 0.7- 010518 867 0.8- 0.9- 870228 691 0.5- 0.0 940615 691 0.5+ 0.1+ 010518 867 0.2- 0.0 870302 691 0.9- 0.2+ 940615 691 0.9+ 0.7- 010518 867 0.0 0.1+ 870302 691 0.9- 0.4+ 940615 691 0.4+ 0.2- 010521 704 1.6+ 0.2- 870622 707 1.3- 1.3- 940704 360 0.3+ 0.0 010521 704 1.9- 0.3+ 870622 707 0.5- 0.7+ 940704 360 1.5+ 0.4- 010521 704 0.7- 0.1+ 870721 691 0.8+ 0.8+ 940706 691 0.3+ 0.3+ 010521 704 (3.1- 0.8+) 870722 691 (1.3- 3.0+) 940706 691 0.3+ 0.5+ 010525 402 1.2- 0.0 870722 691 0.9- 2.5+ 940706 691 0.1+ 0.2- 010525 402 (0.4- 2.1+) 870722 691 1.1- 2.5+ 940710 691 0.3+ 0.2- 010525 402 (2.4- 1.5+) 1988/ 940710 691 0.4+ 0.2- 010530 170 (5.9- 1.1-) 880911 568 0.1+ 1.5- 940710 691 0.3- 0.1- 010530 170 (5.2- 4.2-) 1994/ 940713 360 0.5+ 0.5- 010617 320 1.1- 0.3- 940210 691 0.2- 0.3+ 940713 360 1.4+ 0.2- 010617 320 0.2+ 0.9- 940210 691 1.1- 0.1+ 940713 360 0.9+ 0.3- 010617 320 0.6- 0.2- 940210 691 0.5+ 0.9+ 1997/ 010617 320 0.1- 1.6- 940210 691 1.2- 0.9+ 971230 568 0.4+ 0.6- 2008/ 940210 691 0.3- 0.5+ 971230 568 0.1+ 0.8- 080510 J24 1.5+ 1.6+ 940213 691 1.8- 0.5+ 2001/ 080510 J24 (4.2+ 1.1+) 940213 691 0.1- 1.8+ 010406 413 0.0 0.3+ 080510 J24 0.1+ 2.0+ 940413 360 0.6+ 0.1- 010406 413 0.3- 0.2+ 080514 585 (6.4- 7.8+) 940413 360 0.1+ 0.2- 010406 413 0.1- 0.4+ 080603 J24 (3.6+ 0.3+) 940501 691 0.4+ 0.4- 010406 413 0.9- 1.0+ 080603 J24 1.7+ 0.7+ 940501 691 0.3+ 0.6- 010417 691 0.2- 0.4+ 080603 J24 1.2+ 0.4- ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2012 June 15