Nakano Note (Nakano wa Kangaeru noda) NK 4759 C/2021 QM45 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 82 observations 2021 Aug. 4 to 2022 June 29. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.38 arc second. The object has passed 4.87 AU from Saturn on 2020 Feb. 17 and 2.06 AU from Jupiter on 2021 July 18 UT. See an orbit in CBET 5145 (same orbit). Epoch = 2022 Aug. 9.0 TT T = 2022 Aug. 13.43365 +/- 0.00050 (m.e.) TT Peri. = 72.80403 +/- 0.00016 Node = 354.58864 +/- 0.00002 (2000.0) Inc. = 22.82236 +/- 0.00003 q = 2.7732653 +/- 0.0000044 AU e = 0.9920883 +/- 0.0000055 1/a = +0.0028529 +/- 0.0000020 1/AU origin = +0.002546 (Q= 8) future = +0.002966 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2021/ 210929 D29 0.4- 0.1+ 211105 F52 0.0 0.4- 210804 F51 0.1+ 0.3+ 210929 D29 0.3- 0.1- 211105 F52 0.1+ 0.2- 210804 F51 0.2+ 0.1- 211003 W84 0.1- 0.1- 211127 F52 0.1- 0.4+ 210811 F51 0.0 0.4+ 211003 W84 0.2- 0.1- 211127 F52 0.1+ 0.0 210812 F51 0.4- 0.1- 211003 W84 0.2- 0.0 211127 F52 0.1- 0.0 210812 F51 0.0 0.2+ 211003 W84 0.1- 0.0 211127 F52 0.4+ 0.1- 210812 F51 0.3+ 0.0 211004 F52 0.0 0.0 211203 G96 0.6+ 0.2- 210812 F51 0.1- 0.1+ 211004 F52 0.1- 0.0 211203 G96 0.6+ 0.2- 210817 F51 0.4+ 0.1+ 211004 F52 0.2- 0.1- 211203 G96 1.0+ 0.3+ 210817 F51 0.0 0.1- 211006 F51 0.1- 0.0 211203 G96 1.1+ 1.2+ 210817 F51 0.1+ 0.2+ 211006 F51 0.1- 0.0 2022/ 210827 F51 0.1+ 0.1+ 211006 F51 0.0 0.0 220128 703 1.3+ 1.5+ 210910 G96 0.2- 0.1- 211006 F51 0.1+ 0.0 220128 703 0.1+ 0.2+ 210910 G96 1.1- 0.7- 211010 G96 0.4+ 0.1- 220128 703 0.3+ 1.1- 210910 G96 0.6- 0.4- 211010 G96 0.2- 0.1- 220128 703 0.3+ 0.6- 210910 G96 0.1+ 0.3+ 211010 G96 0.1- 0.1- 220214 I41 0.8+ 0.0 210911 G96 0.5- 0.4- 211010 G96 0.3- 0.6+ 220214 I41 0.4+ 0.2- 210911 G96 0.2+ 0.4- 211022 F51 0.2+ 0.0 220214 I41 0.2+ 0.1+ 210911 G96 0.4- 0.3- 211027 F51 0.2- 0.0 220214 I41 0.1+ 0.4- 210911 G96 0.1+ 0.1+ 211027 F51 0.1- 0.1+ 220218 I41 0.6- 0.2- 210924 G96 0.3- 0.0 211027 F51 0.0 0.0 220218 I41 0.4+ 0.2- 210924 G96 0.7- 0.8- 211027 F51 0.0 0.0 220218 I41 0.2+ 0.7- 210924 G96 0.3- 0.2- 211029 G96 0.3+ 0.4- 220218 I41 0.2+ 1.6- 210924 G96 0.9- 0.3- 211029 G96 0.1- 0.2- 220629 I41 0.0 0.1+ 210925 F51 0.1- 0.1- 211029 G96 0.1- 0.4- 220629 I41 0.0 0.3+ 210925 F51 0.3- 0.1+ 211029 G96 0.3+ 0.1+ 220629 I41 0.2+ 0.0 210925 F51 0.1- 0.1+ 211105 F52 0.1- 0.1- 220629 I41 0.2- 0.1- 210929 D29 0.2- 0.2- 211105 F52 0.2+ 0.2- 220629 I41 0.1- 0.2+ Following obs. not included 220630 I41 0.0 0.0 220630 I41 0.3- 0.1+ 220630 I41 0.0 0.2+ 220630 I41 0.0 0.4+ 220630 I41 0.1- 0.0 ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2022 July 5

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