Nakano Note (Nakano wa Kangaeru noda) NK 4016 A/2019 G2
The following improved orbital elements, by S. Nakano, are from 62 observations 2019 Apr. 2 to Dec. 5. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.45 arc second. The object has passed 3.04 AU from Saturn on 2016 Aug. 12 and 0.99 AU from Jupiter on 2018 June 18. Also object will pass 4.08 AU from Jupiter on 2022 May 12 and 4.85 AU from Saturn on 2024 Apr. 28 UT. Epoch = 2019 Dec. 23.0 TT T = 2019 Dec. 10.06195 +/- 0.00122 (m.e.) TT Peri. = 82.65278 +/- 0.00077 Node = 208.14429 +/- 0.00005 (2000.0) Inc. = 159.21160 +/- 0.00007 q = 2.2913549 +/- 0.0000197 AU e = 0.9967997 +/- 0.0000077 1/a = +0.0013967 +/- 0.0000034 1/AU origin = +0.002671 (Q= 8) future = +0.002395 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 190407 807 0.1+ 0.2+ 190415 V06 1.7+ 0.3+ 190402 F51 0.2+ 0.1- 190407 F51 0.4- 0.1+ 190415 V06 1.5+ 0.0 190402 F51 0.2+ 0.1+ 190407 F51 0.2- 0.0 190501 215 0.3+ 0.2+ 190402 F51 0.2+ 0.3- 190407 F51 0.3- 0.0 190501 215 0.0 0.1+ 190403 H21 0.3+ 0.0 190407 F51 0.2+ 0.1+ 190501 215 0.1- 0.3+ 190403 H21 0.0 0.1+ 190409 F51 0.4- 0.0 190506 N50 0.6+ 0.2- 190403 H21 0.2+ 0.0 190409 F51 0.3- 0.1+ 190506 N50 0.6+ 0.1- 190403 I52 0.3- 0.1- 190409 F51 0.0 0.1- 190506 N50 0.3+ 0.3- 190403 I52 1.2- 0.2- 190409 F51 0.1- 0.2- 190705 568 0.4- 0.2+ 190403 I52 0.3- 0.1+ 190411 691 0.6+ 0.2+ 190705 568 0.3- 0.3+ 190403 I52 0.4+ 0.1+ 190411 691 0.8+ 0.5+ 190705 568 0.2- 0.1+ 190403 Q62 0.1- 0.6+ 190411 691 0.1+ 0.1- 190705 568 0.4- 0.1+ 190403 Q62 0.6- 0.2+ 190411 I52 0.3- 0.1- 191202 G96 0.3- 0.2+ 190403 Q62 0.5- 0.4+ 190411 I52 1.3+ 1.0- 191202 G96 0.2+ 0.3+ 190407 033 0.3+ 0.4+ 190411 I52 0.0 0.1+ 191202 G96 0.2- 0.0 190407 033 0.3+ 0.4+ 190411 I52 0.4+ 1.0- 191202 G96 0.3- 0.3- 190407 033 0.1+ 0.1+ 190412 711 1.1- 0.2+ 191203 568 0.2+ 0.1- 190407 033 0.4- 0.4- 190412 711 0.3- 0.9+ 191203 568 0.3+ 0.1- 190407 033 0.6- 0.4- 190412 711 0.3- 0.9+ 191205 C10 0.7- 0.7+ 190407 807 0.3+ 0.2- 190415 V06 0.4- 0.4+ 191205 C10 1.1- 0.1- 190407 807 0.0 0.1- 190415 V06 0.0 0.2+ 191205 C10 0.4- 0.2- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2019 Dec. 30