Nakano Note (Nakano wa Kangaeru noda) NK 2050 115P/Maury

The following improved orbital elements, by S. Nakano, are from 103 observations 1985 to 2011, 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 +/- 0.87 arc second. The delta-T correction on NK 1611 (= HICQ 2010/2011) is -0.02 day with RunOff valules +20" for R. A. and -2" for Decl. The comet has passed 0.52 AU from Jupiter on 1992 Jan. 8 UT. See the previous orbit in NK 701. Epoch = 2011 Oct. 6.0 TT T = 2011 Oct. 6.94466 +/- 0.00287 (m.e.) TT Peri. = 120.06294 +/- 0.00077 Node = 176.60282 +/- 0.00009 (2000.0) Inc. = 11.70616 +/- 0.00004 q = 2.0350534 +/- 0.0000027 AU e = 0.5209607 +/- 0.0000002 a = 4.2481970 +/- 0.0000014 AU n' = 0.11256337 +/- 0.00000005 P = 8.756 +/- 0.0000043 years A1 = +0.726 +/- 0.182 A2 = -0.02751 +/- 0.00291 T = 1985 June 8.16101 TT Epoch = 1985 June 24.0 TT Peri. = 113.95257 e = 0.5295030 Node = 183.81027 (2000.0) a = 4.2740817 AU Inc. = 9.40501 n'= 0.11154236 q = 2.0109428 AU P = 8.836 years T = 1994 Mar. 18.72028 TT Epoch = 1994 Mar. 29.0 TT Peri. = 119.82765 e = 0.5223580 Node = 176.83137 (2000.0) a = 4.2422850 AU Inc. = 11.69444 n'= 0.11279876 q = 2.0262935 AU P = 8.738 years T = 2002 Dec. 23.83820 TT Epoch = 2003 Jan. 1.0 TT Peri. = 119.87397 e = 0.5207994 Node = 176.75581 (2000.0) a = 4.2605455 AU Inc. = 11.68260 n'= 0.11207436 q = 2.0416561 AU P = 8.794 years The predicted orbit for the 2020 return is as follows: T = 2020 July 29.75220 TT Epoch = 2020 July 10.0 TT Peri. = 121.01475 e = 0.5190557 Node = 176.01933 (2000.0) a = 4.2768154 AU Inc. = 11.67421 n'= 0.11143543 q = 2.0569100 AU P = 8.845 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1985/ 860107 691 1.4+ 0.8+ 2002/ 850816 675 2.4- 1.8- 860107 691 1.9+ 0.8- 020512 360 0.6- 0.4- 850817 675 1.7- 1.4- 1994/ 020512 360 0.1+ 0.0 850817 675 0.9+ 2.2+ 940503 691 0.8- 0.8- 020512 360 0.6- 0.4- 850820 675 0.9+ 2.2+ 940503 691 0.1- 0.8- 020514 224 1.0+ 0.4+ 850820 675 2.3- 0.4- 940503 691 0.6- 0.5- 020514 224 0.5+ 1.3+ 850823 675 1.7- 1.1- 940503 691 0.6+ 0.7- 020514 224 1.6+ 0.5- 850823 675 0.1- 2.3+ 940504 691 0.5+ 0.5- 020519 360 0.2- 0.4- 850907 675 (1.6+ 3.8+) 940504 691 0.2+ 0.3- 020519 360 0.5+ 0.0 850907 675 0.8+ 0.6+ 940504 691 0.3+ 0.3- 020519 360 0.6- 0.2+ 850908 675 0.5+ 0.3- 940519 360 1.8- 0.5- 020605 360 0.1+ 0.1- 850908 675 0.4+ 0.4- 940519 360 1.4- 0.9- 020605 360 0.2+ 0.0 850912 801 1.0- 1.1- 940612 691 0.2- 0.4- 2003/ 850912 801 0.2- 0.4+ 940612 691 0.1+ 0.6- 030920 699 1.4- 0.4+ 850913 801 1.1+ 1.5+ 940612 691 0.3+ 0.3- 030920 699 0.7- 0.3+ 850913 675 (0.1- 2.8-) 940707 360 0.4- 0.4- 030920 699 0.4- 1.1+ 850913 675 0.2- 0.9+ 940707 360 0.1+ 0.2- 030920 699 (2.2- 1.4+) 850914 293 (7.0+ 3.9+) 940709 691 0.2- 0.2- 030928 704 0.9+ 0.8+ 850914 688 2.0+ 0.0 940709 691 1.1- 0.1+ 030928 704 0.9- 0.1- 850914 293 (3.2+ 3.3+) 940709 691 0.5- 0.0 030928 704 (0.5+ 2.3-) 850914 688 1.4+ 0.7- 940803 360 0.8- 0.3- 030928 704 0.3+ 1.7- 850915 801 0.7- 2.3+ 940803 360 1.4- 0.2- 031002 360 0.0 0.2- 850916 707 1.1- 0.4+ 940817 360 0.1+ 0.1+ 031002 360 0.1+ 0.3- 850917 801 0.1+ 1.0+ 940817 360 0.0 0.1+ 031007 204 0.9- 0.2+ 850918 801 1.4- 0.9+ 940902 658 0.5- 0.3+ 031020 691 0.2+ 0.2+ 850920 691 0.9+ 0.8- 940902 658 0.3- 0.1- 031020 691 0.1- 0.2+ 850920 691 0.6+ 0.1+ 940902 658 0.1+ 0.2+ 031020 691 0.3+ 0.0 850920 691 0.8+ 0.8- 940902 658 0.6- 0.2+ 031023 360 0.6- 0.1+ 850921 691 0.0 0.9- 940907 691 0.1- 0.9- 031023 360 0.1+ 0.2+ 850921 691 0.1+ 1.0- 940908 360 0.5+ 0.1- 031023 360 0.5- 0.1- 851003 675 0.1+ 0.1- 940908 360 0.5+ 0.4- 031025 204 (0.7- 2.7+) 851003 675 0.1+ 0.1+ 940930 897 0.6+ 1.2- 2011/ 851017 801 1.9+ 0.9+ 940930 897 1.2+ 1.8- 110306 D90 0.4+ 0.8+ 851019 691 0.5+ 1.1- 940930 897 2.0+ 1.1+ 110306 D90 0.1+ 0.6+ 851019 691 0.2+ 1.7+ 941002 360 1.1+ 0.5+ 110311 H10 (3.3- 1.1-) 851117 691 0.2- 1.6+ 941002 360 1.5+ 0.1+ 110311 H10 1.3- 1.2- 851117 691 0.9- 0.5+ 941025 360 1.3+ 0.7- 110311 H10 0.0 1.1- 851207 691 1.0- 0.0 941025 360 1.1+ 0.6- 110311 H10 0.8+ 1.1- 851207 691 0.8- 0.7- 1997/ 1986/ 971230 568 1.1+ 0.3- ( ) -------- Rejected Obs.

Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2011 Apr. 6

Back to Nakano Note Page