Nakano Note (Nakano wa Kangaeru noda) NK 4170 A/2019 O2
The following improved orbital elements, by S. Nakano, are from 107 observations 2019 July 24 to 2020 Aug. 6. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.24 arc second. See the previous orbits in NK 4019 (= HICQ 2020) and NK 4081. Epoch = 2023 Apr. 6.0 TT T = 2023 Apr. 7.23059 +/- 0.00989 (m.e.) TT Peri. = 129.64040 +/- 0.00084 Node = 48.26305 +/- 0.00007 (2000.0) Inc. = 93.30727 +/- 0.00001 q = 9.6827357 +/- 0.0000683 AU e = 0.8327652 +/- 0.0000177 1/a = +0.0172714 +/- 0.0000018 1/AU a = 57.90 AU P = 440.6 years origin = +0.017232 (Q= 8) future = +0.017267 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 190807 K88 0.3+ 0.4+ 200526 204 0.0 0.0 190724 F51 0.1+ 0.0 190811 568 0.0 0.0 200527 157 0.3- 0.5+ 190724 F51 0.1- 0.1+ 190811 568 0.0 0.1- 200527 157 0.1+ 0.2- 190724 F51 0.0 0.0 190811 568 0.0 0.0 200528 157 0.4- 0.0 190724 F51 0.0 0.2- 190811 568 0.0 0.0 200617 568 0.0 0.0 190724 L01 0.4- 0.3- 190811 568 0.0 0.1- 200617 568 0.0 0.1- 190724 L01 0.2- 0.4- 190811 568 0.0 0.0 200620 157 0.0 0.2- 190724 L01 0.2- 0.1- 190905 461 0.1- 0.6+ 200620 157 0.3- 0.1- 190724 L01 0.0 0.0 190905 461 0.1- 0.4+ 200620 157 0.1+ 0.2- 190725 H01 0.0 0.2- 190905 461 0.1+ 0.4+ 200628 F51 0.0 0.1+ 190725 H01 0.0 0.1+ 190906 C95 0.9+ 0.8+ 200628 F51 0.1- 0.1- 190725 H21 0.1- 0.3- 190906 C95 0.6- 0.2+ 200628 F51 0.0 0.0 190725 H21 0.0 0.2- 190919 461 0.2- 0.1+ 200628 F51 0.0 0.1- 190725 A71 0.2+ 0.3+ 190919 461 0.5- 0.5- 200709 215 0.2+ 0.4+ 190725 A71 0.2- 0.3- 191023 461 0.1+ 0.2+ 200709 215 0.3+ 0.2+ 190727 F51 0.1+ 0.0 191023 461 0.0 0.2+ 200709 215 0.4+ 0.1+ 190727 F51 0.1+ 0.1+ 191023 461 0.1- 0.2+ 200711 157 0.1- 0.1- 190727 F51 0.1+ 0.0 191124 461 0.2- 0.3+ 200711 157 0.3+ 0.2+ 190727 F51 0.0 0.2- 191124 461 0.1- 0.3+ 200711 157 0.2+ 0.7- 190728 U69 0.6+ 0.8+ 191124 461 0.0 0.1+ 200712 F51 0.0 0.2- 190728 U69 0.1+ 0.4+ 191229 215 0.3+ 1.3+ 200712 F51 0.0 0.0 190730 A77 0.1+ 0.2- 191229 215 0.2+ 0.7- 200712 F51 0.0 0.0 190730 A77 0.2+ 1.0- 191229 215 0.3+ 0.7- 200712 F51 0.0 0.1+ 190730 A77 0.2- 0.6+ 2020/ 200713 568 0.0 0.0 190730 A77 0.4- 0.1- 200322 568 0.0 0.1- 200713 568 0.0 0.0 190731 711 1.2- 0.6+ 200322 568 0.1+ 0.1- 200729 F51 0.0 0.0 190731 711 (3.1- 1.1+) 200323 568 0.0 0.1- 200729 F51 0.1- 0.0 190731 711 (3.2- 0.9+) 200323 568 0.0 0.1- 200729 F51 0.0 0.0 190731 G40 0.5- 0.0 200404 H06 0.7- 0.2+ 200729 F51 0.0 0.1+ 190731 G40 0.0 0.3+ 200404 H06 0.9- 0.4+ 200801 F51 0.0 0.2+ 190801 G40 0.7- 0.7+ 200519 568 0.0 0.0 200801 F51 0.1- 0.0 190804 587 0.5- 0.1+ 200519 568 0.0 0.0 200801 F51 0.0 0.0 190804 K88 0.1+ 0.2+ 200524 157 0.1+ 0.8+ 200801 F51 0.1- 0.0 190804 587 0.3- 0.1+ 200524 157 0.0 0.4+ 200806 C10 0.1+ 0.1+ 190804 587 0.5- 0.1+ 200524 104 0.2+ 0.5+ 200806 C10 0.1+ 0.0 190804 K88 0.1+ 0.1+ 200524 104 0.1+ 0.1+ 200806 C10 (0.0 2.3-) 190806 K88 0.0 0.3+ 200526 204 0.1+ 0.1+ 190806 K88 0.2+ 0.2+ 200526 204 0.2+ 0.7- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Aug. 10