Nakano Note (Nakano wa Kangaeru noda) NK 3808 P/PANSTARRS (2019 G1 = 2011 O2)
The following improved orbital elements, by S. Nakano, are from 122 observations 2009 to 2019. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.46 arc second. Epoch = 2019 June 6.0 TT T = 2019 June 6.92049 +/- 0.00012 (m.e.) TT Peri. = 90.06881 +/- 0.00006 Node = 133.10316 +/- 0.00005 (2000.0) Inc. = 8.23353 +/- 0.00001 q = 3.0496477 +/- 0.0000004 AU e = 0.3269646 +/- 0.0000001 a = 4.5311845 +/- 0.0000007 AU n' = 0.10218484 +/- 0.00000002 P = 9.645 +/- 0.0000022 years T = 2009 Oct. 13.75379 TT Epoch = 2009 Oct. 16.0 TT Peri. = 90.02742 e = 0.3256302 Node = 133.11962 (2000.0) a = 4.5411188 AU Inc. = 8.23047 n'= 0.10184971 q = 3.0623934 AU P = 9.677 years The predicted orbit for the 2028 return is as follows: T = 2028 Aug. 3.19771 TT Epoch = 2028 Aug. 17.0 TT Peri. = 86.18673 e = 0.3302245 Node = 127.54356 (2000.0) a = 4.4738744 AU Inc. = 8.02808 n'= 0.10415458 q = 2.9964913 AU P = 9.463 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2009/ 190403 K61 0.1- 0.0 190406 246 0.6- 1.1- 090226 291 0.1+ 0.2- 190403 K61 0.2+ 0.6- 190406 033 0.0 0.2+ 090226 291 0.1+ 0.1+ 190403 K61 0.2+ 0.4- 190406 033 0.2- 0.1+ 090226 291 0.1+ 0.1+ 190404 A71 0.5- 1.3+ 190406 033 0.2- 0.1+ 090325 D29 1.0- 1.4- 190404 A71 0.3- 1.6+ 190406 I93 0.7- 0.2+ 090325 D29 0.1+ 0.2+ 190404 A71 0.6- 1.8+ 190406 I93 0.4- 0.2- 090325 D29 0.5+ 0.8- 190404 I52 0.3- 0.1- 190406 K88 0.2- 0.3+ 090325 D29 0.7- 0.4- 190404 I52 1.0- 0.9+ 190406 I93 0.3- 0.1+ 2011/ 190404 I52 0.3+ 0.6+ 190406 K88 0.2- 0.1+ 110727 F51 0.1- 0.2+ 190404 H06 0.1- 0.3+ 190406 A71 1.8- 0.4- 110727 F51 0.1- 0.2- 190404 H06 0.2- 0.1- 190406 K88 0.2+ 0.2+ 110727 F51 0.1- 0.2+ 190404 568 0.2+ 0.0 190407 A71 1.7- 0.2- 110830 F51 0.0 0.1+ 190404 568 0.2+ 0.1- 190407 A71 1.8- 0.2- 110830 F51 0.3- 0.2+ 190404 568 0.2+ 0.0 190407 G40 0.4- 0.4+ 110830 F51 0.4+ 0.0 190404 Q11 0.2+ 0.1- 190407 G40 0.4- 0.4+ 2018/ 190404 Q11 0.1- 0.2+ 190407 G40 0.2- 0.1+ 180116 F51 0.1+ 0.1+ 190404 Q11 0.6- 0.2- 190407 K87 0.4+ 0.2- 180116 F51 0.0 0.3+ 190404 585 0.1- 0.2+ 190407 K87 0.2+ 0.3- 180116 F51 0.1- 0.2+ 190404 585 0.1- 0.2+ 190407 K87 0.1+ 0.1- 180116 F51 0.1- 0.0 190404 585 0.1- 0.1+ 190407 G96 0.8+ 0.1- 180212 F51 0.1- 0.1+ 190404 585 0.0 0.2+ 190407 G96 0.2- 0.0 180212 F51 0.2- 0.1+ 190404 585 0.0 0.1+ 190407 G96 0.4- 0.1- 180212 F51 0.1+ 0.1+ 190404 585 0.0 0.1+ 190407 G96 0.7- 0.3- 180212 F51 0.0 0.0 190405 L27 1.0- 0.1+ 190407 I52 0.6- 0.1+ 180308 F51 0.3+ 0.1- 190405 L27 0.1- 0.4+ 190407 I52 0.7- 0.3- 180308 F51 0.0 0.1+ 190405 L27 0.4- 0.4+ 190407 I52 0.2- 0.1- 180308 F51 0.3+ 0.0 190405 Q11 0.0 0.2+ 190407 F51 0.1+ 0.0 180308 F51 0.0 0.0 190405 Q11 0.3+ 0.2+ 190407 I52 0.2- 0.2- 2019/ 190405 Q11 0.1+ 0.3+ 190407 F51 0.0 0.1+ 190209 F51 0.1- 0.1+ 190405 033 0.0 0.4- 190407 F51 0.1+ 0.0 190209 F51 0.3- 0.1+ 190405 033 0.2- 0.0 190407 F51 0.2+ 0.0 190329 G96 0.3- 0.2- 190405 033 0.3+ 0.2- 190408 F51 0.1+ 0.0 190329 G96 0.4- 0.0 190406 L01 0.6+ 0.4- 190408 F51 0.2+ 0.1- 190329 G96 0.3- 0.1+ 190406 L01 0.7+ 0.7- 190408 F51 0.1+ 0.0 190329 G96 0.6- 0.1+ 190406 L01 1.1+ 0.6- 190408 F51 0.1+ 0.0 190403 F51 0.2+ 0.0 190406 I47 0.4- 0.5- 190408 F51 0.1+ 0.1- 190403 T08 0.1- 0.3+ 190406 I47 0.2+ 0.0 190408 F51 0.1+ 0.0 190403 F51 0.2+ 0.0 190406 Q11 0.4- 0.7+ 190408 F51 0.2+ 0.0 190403 T08 1.5- 1.2- 190406 Q11 0.3- 0.6+ 190409 691 0.2+ 1.1+ 190403 T08 0.0 0.1+ 190406 Q11 0.3- 0.4+ 190409 691 0.6- 0.7+ 190403 F51 0.2+ 0.0 190406 246 (2.1- 1.8-) 190409 691 0.0 0.3+ 190403 T08 1.2- 0.0 190406 246 0.7- 1.6- 190403 F51 0.2+ 0.0 190406 246 0.7- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2019 Apr. 12