Nakano Note (Nakano wa Kangaeru noda) NK 4225 P/2020 O1 (Lemmon-PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 75 observations 2020 June 27 to Sept. 14. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.47 arc second. See an orbit in CBET 4820. Epoch = 2020 Apr. 21.0 TT T = 2020 May 4.17977 +/- 0.01944 (m.e.) TT Peri. = 104.92782 +/- 0.00566 Node = 176.00922 +/- 0.00056 (2000.0) Inc. = 5.22252 +/- 0.00007 q = 2.3294060 +/- 0.0000172 AU e = 0.1198221 +/- 0.0000046 a = 2.6465171 +/- 0.0000240 AU n' = 0.22892436 +/- 0.00000311 P = 4.305 +/- 0.0000585 years The predicted orbit for the 2024 return is as follows: T = 2024 Aug. 20.37351 TT Epoch = 2024 Sept. 7.0 TT Peri. = 104.36776 e = 0.1186055 Node = 175.96577 (2000.0) a = 2.6459814 AU Inc. = 5.22544 n'= 0.22899389 q = 2.3321535 AU P = 4.304 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 200722 L07 0.1- 0.4+ 200729 F51 0.1+ 0.1+ 200627 F51 0.2+ 0.0 200722 L07 0.8- 0.2+ 200729 F51 0.1+ 0.1+ 200627 F51 0.1- 0.2+ 200723 G40 0.3- 0.4+ 200729 F51 0.1+ 0.0 200627 F51 0.3+ 0.2- 200723 G40 0.2- 0.2- 200729 F51 0.0 0.1+ 200627 F51 0.2- 0.2- 200723 673 0.3+ 0.6+ 200730 X02 0.3- 0.2- 200719 G96 0.0 0.8- 200723 673 0.3+ 0.1+ 200730 X02 0.2- 0.0 200719 G96 0.3+ 0.1+ 200723 673 0.1+ 0.5+ 200730 246 0.3+ 0.1- 200719 G96 0.8- 0.0 200723 Q62 0.1- 0.1- 200730 246 0.1+ 0.8- 200719 G96 0.7- 0.7- 200723 Q62 0.3- 0.0 200730 246 0.2- 0.7- 200720 F51 0.1- 0.0 200725 204 1.3- 0.0 200801 H36 0.3- 0.1- 200720 F51 0.0 0.1+ 200725 204 0.7- 0.3- 200801 H36 0.7+ 0.5+ 200720 F51 0.1+ 0.0 200725 F52 0.2+ 0.2- 200801 H36 0.2- 0.7+ 200720 F51 0.0 0.0 200725 F52 0.0 0.1+ 200808 215 0.3- 1.2+ 200720 J04 0.5- 0.2- 200725 F52 0.1- 0.0 200808 215 0.3- 0.1+ 200720 J04 0.2- 0.3- 200725 L01 0.6- 0.4- 200808 215 0.7- 0.7+ 200720 J04 0.2- 0.2- 200725 L01 0.6- 0.3- 200812 568 0.0 0.1+ 200721 I93 1.2- 0.5- 200725 L01 0.9- 0.2- 200812 568 0.0 0.1+ 200721 I93 0.7- 0.3- 200726 K63 0.5+ 0.5- 200816 F52 0.1+ 0.0 200721 568 0.3+ 0.2+ 200726 K63 0.0 0.8- 200816 F52 0.2+ 0.0 200721 568 0.3+ 0.2+ 200726 K63 0.2- 0.5- 200816 F52 0.1- 0.0 200721 568 0.3+ 0.2+ 200727 204 1.2- 0.5- 200816 F52 0.3+ 0.1+ 200721 E94 1.2- 0.1- 200728 204 1.5- 0.5- 200914 F51 0.0 0.1- 200721 E94 1.7- 1.1- 200728 X02 0.6- 0.1- 200914 F51 0.0 0.2- 200722 673 0.9- 0.0 200728 X02 0.3+ 0.1+ 200914 F51 0.0 0.1+ 200722 673 0.1- 0.7+ 200728 X02 1.1- 0.6- 200722 673 0.8- 0.6- 200728 X02 0.2- 0.4- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Oct. 6