Nakano Note (Nakano wa Kangaeru noda) NK 1893 P/LINEAR (2002 CF140 = 2010 E4)
The following improved orbital elements, by S. Nakano, are from 67 observations 2002 to 2010. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.63 arc second. Epoch = 2010 Jan. 4.0 TT T = 2009 Dec. 23.49524 +/- 0.02812 (m.e.) TT Peri. = 358.33810 +/- 0.00559 Node = 179.72704 +/- 0.00011 (2000.0) Inc. = 11.51505 +/- 0.00004 q = 2.8612694 +/- 0.0000451 AU e = 0.2509475 +/- 0.0000129 a = 3.8198515 +/- 0.0000234 AU n' = 0.13201837 +/- 0.00000121 P = 7.466 +/- 0.0000686 years T = 2002 July 7.51997 TT Epoch = 2002 July 25.0 TT Peri. = 358.11585 e = 0.2523650 Node = 179.77921 (2000.0) a = 3.8123288 AU Inc. = 11.52074 n'= 0.13240932 q = 2.8502302 AU P = 7.444 years The predicted orbit for the 2017 return is as follows: T = 2017 June 1.42870 TT Epoch = 2017 June 16.0 TT Peri. = 358.04842 e = 0.2530054 Node = 179.72357 (2000.0) a = 3.8127734 AU Inc. = 11.52555 n'= 0.13238616 q = 2.8481211 AU P = 7.445 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2002/ 020216 608 0.1- 0.2- 2010/ 020205 608 0.3+ 1.1- 020216 608 0.5+ 0.4- 100311 J75 0.5- 0.3- 020205 608 0.5- 0.7- 020216 608 0.0 0.3- 100311 J75 0.9+ 0.3- 020205 608 0.4- 1.5- 020306 644 0.2+ 0.4- 100311 J75 1.0- 0.2+ 020206 699 0.8- 0.5+ 020306 644 0.1+ 0.3- 100315 G96 0.6- 0.2+ 020206 699 0.2- 0.2+ 020306 644 0.1+ 0.4- 100315 G96 1.1- 0.2+ 020206 699 1.0- 0.0 020312 704 0.8+ 0.5- 100315 G96 0.1+ 0.1- 020206 699 0.7- 1.0+ 020312 704 1.1+ 0.0 100315 G96 0.2+ 0.1- 020208 704 0.8+ 1.0+ 020312 704 0.6+ 0.0 100315 G96 0.4- 0.1+ 020208 704 0.3+ 0.3+ 020312 704 0.2+ 1.4+ 100315 G96 0.4- 0.0 020208 704 0.4+ 0.9+ 020312 704 0.3+ 0.2- 100315 G96 0.9- 0.2+ 020208 704 0.1- 0.6+ 020316 704 0.3- 1.1- 100315 G96 0.3- 0.3+ 020208 704 0.5- 0.8+ 020316 704 0.9+ 1.7- 100317 H06 0.0 0.2- 020211 704 0.4+ 0.1- 020316 704 0.4+ 0.9- 100317 H06 0.3- 0.5- 020211 704 0.3+ 0.2- 020316 704 0.3+ 1.7- 100317 H10 (1.8+ 3.0+) 020211 608 0.2- 1.2+ 020316 704 0.2- 0.7- 100317 H10 1.1+ 0.5- 020211 704 0.3+ 0.5+ 020412 704 0.5- 0.1+ 100317 H10 0.6+ 1.0- 020211 704 0.1+ 0.7- 020412 704 0.5- 0.1+ 100317 H10 0.7- 0.0 020211 608 0.2- 0.6+ 020412 704 0.6- 0.2+ 100318 A79 1.3+ 0.1- 020211 608 0.6- 0.5+ 020412 704 0.6- 0.2+ 100318 A79 0.7+ 0.4+ 020211 704 0.1+ 0.0 020412 704 0.6+ 0.3- 100318 A79 0.5+ 1.2+ 020212 683 0.8- 1.5+ 020506 704 0.0 0.3- 100319 349 0.8+ 0.3- 020212 683 1.2- 0.0 020506 704 0.5+ 1.2+ 100319 349 0.2+ 0.5+ 020212 683 (6.1- 3.9-) 020506 704 0.6+ 0.9+ ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2010 Mar. 22