Nakano Note (Nakano wa Kangaeru noda) NK 1912 184P/Lovas 2
The following improved orbital elements, by S. Nakano, are from 62 observations 1986 to 2007. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.89 arc second. See the previous orbit in NK 650, NK 946 and NK 1412. Epoch = 2006 Dec. 11.0 TT T = 2006 Dec. 12.45086 +/- 0.00114 (m.e.) TT Peri. = 77.40337 +/- 0.00245 Node = 278.30182 +/- 0.00273 (2000.0) Inc. = 1.55313 +/- 0.00006 q = 1.3953198 +/- 0.0000196 AU e = 0.6041132 +/- 0.0000050 a = 3.5245423 +/- 0.0000189 AU n' = 0.14895325 +/- 0.00000120 P = 6.617 +/- 0.0000533 years T = 1986 Sept. 2.25550 TT Epoch = 1986 Sept. 7.0 TT Peri. = 71.40730 e = 0.5927621 Node = 283.74714 (2000.0) a = 3.5821420 AU Inc. = 1.52951 n'= 0.14537505 q = 1.4587839 AU P = 6.780 years [ T = 1993 June 12.98957 TT Epoch = 1993 June 22.0 TT Peri. = 71.46112 e = 0.5919288 Node = 283.67804 (2000.0) a = 3.5861552 AU Inc. = 1.52804 n'= 0.14513109 q = 1.4634065 AU P = 6.791 years ] [ T = 2000 Mar. 24.89764 TT Epoch = 2000 Apr. 6.0 TT Peri. = 71.62843 e = 0.5933494 Node = 283.55199 (2000.0) a = 3.5772980 AU Inc. = 1.52987 n'= 0.14567043 q = 1.4547103 AU P = 6.766 years ] The predicted orbit for the 2013 return is as follows: T = 2013 July 28.47580 TT Epoch = 2013 Aug. 16.0 TT Peri. = 78.07848 e = 0.6042358 Node = 277.72966 (2000.0) a = 3.5223606 AU Inc. = 1.55151 n'= 0.14909166 q = 1.3940241 AU P = 6.611 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1986/ 861207 372 1.2- 2.1+ Y 070110 734 0.6- 0.5- 861130 561(13.0- 6.7+) 1987/ 070110 734 0.7- 1.5- 861130 561 (5.7- 3.3+) 870103 691 (3.4+ 1.7-) 070110 854 1.1- 0.5+ 861202 801 (3.4- 10.2+) 870103 691 0.1+ 0.4+ 070110 854 0.7- 0.8+ 861202 691 0.3- 0.5+ 870103 691 0.3+ 1.3- 070110 854 0.5+ 0.4+ 861202 691 0.1+ 0.8+ 870125 691 0.0 0.8- 070111 372 0.3+ 0.4- 861202 691 0.1- 0.2- 870125 691 0.1- 1.3+ 070113 215 1.2+ 1.6+ 861202 892(11.6- 4.9-)Y 870125 691 0.2- 0.4- 070113 232 (3.3+ 2.0-) 861202 892(11.6- 6.9-)Y 870130 691 0.0 0.1- 070113 232 (2.4+ 0.8-) 861203 372 1.1+ 1.8- 870130 691 0.4- 0.4- 070113 232 (2.9+ 1.1-) 861203 323 0.0 0.2- 870130 691 0.9- 0.6- 070114 349 0.8+ 1.1- 861203 372 0.1- 0.4- 870301 691 0.1- 0.0 070114 349 0.1- 0.3- 861203 561 (8.2- 7.9+) 870301 691 0.0 1.8+ 070115 703 0.5+ 0.7+ 861204 688 0.1+ 2.1- 870303 691 0.5+ 0.7- 070115 703 0.2+ 1.2+ 861204 688 (4.2+ 5.9-) 870303 691 0.6+ 0.7+ 070115 703 0.2+ 0.3+ 861204 688 (5.6+ 3.4+) 2007/ 070115 703 0.1- 0.7+ 861204 688 1.5+ 0.1- 070109 703 1.4+ 1.1+ 070115 703 0.3- 0.5- 861204 691 0.4- 1.3+ 070109 703 (2.5+ 0.7+) 070115 703 0.2+ 0.3- 861204 691 1.3- 1.0+ 070109 703 (2.4+ 0.2+) 070115 703 1.1+ 1.0+ 861204 691 0.3+ 0.5+ 070109 703 0.6+ 0.7- 070115 703 0.8- 0.2+ 861204 892 (0.9+ 2.9-) 070109 G96 0.1+ 0.2- 070115 703 1.6- 0.1- 861204 892 2.5+ 0.4+ 070109 G96 0.3- 0.2- 070115 703 0.4- 0.9- 861204 372(11.7+ 1.5+)Y 070109 G96 0.1- 0.5- 070115 703 0.8+ 0.4- 861205 801 0.5+ 2.3- 070109 G96 0.6- 0.0 070115 703 0.7- 0.2- 861205 373 2.0- 2.5+ 070110 G96 0.8- 0.3+ 070120 J76 0.2+ 1.0- 861205 373 (3.2- 2.5-) 070110 G96 0.2- 0.1- 070120 J76 (3.3+ 1.2+) 861205 399 1.9- 2.1- 070110 G96 0.3+ 0.4+ 070120 J76 0.1+ 0.3+ 861206 399 1.6+ 0.6+ 070110 734 0.0 0.1+ ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2010 Apr. 10