Nakano Note (Nakano wa Kangaeru noda) NK 4505 C/2020 R2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 104 observations 2020 Aug. 18 to 2021 July 14. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.27 arc second. See the previous orbits in CBET 4846 and NK 4380 (= HICQ 2021). Epoch = 2022 Mar. 2.0 TT T = 2022 Feb. 24.54245 +/- 0.00315 (m.e.) TT Peri. = 211.74154 +/- 0.00063 Node = 195.09343 +/- 0.00006 (2000.0) Inc. = 53.22860 +/- 0.00010 q = 4.6918218 +/- 0.0000265 AU e = 0.9884877 +/- 0.0000128 1/a = +0.0024537 +/- 0.0000027 1/AU origin = +0.003023 (Q= 8) future = +0.002924 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 200914 L07 0.0 0.2+ 201022 F52 0.1- 0.1- 200818 F51 0.0 0.0 200915 H06 0.2+ 0.0 201022 F52 0.2- 0.1+ 200818 F51 0.1+ 0.1- 200915 H06 0.3- 0.4- 201022 F52 0.1+ 0.2- 200818 F51 0.1+ 0.1+ 200915 H06 0.3- 0.2- 201023 G96 0.2+ 0.1- 200818 F51 0.0 0.1- 200915 215 1.1- 0.6- 201023 G96 0.0 0.1- 200829 F52 0.0 0.1- 200915 215 0.5- 0.2+ 201023 G96 0.0 0.1+ 200829 F52 0.1+ 0.0 200915 215 0.4- 0.4- 201023 G96 0.2- 0.2+ 200906 G96 0.7+ 0.3+ 200918 G96 0.1- 0.1- 201110 J43 0.5+ 0.6+ 200906 G96 0.0 0.1- 200918 G96 0.1+ 0.2+ 201110 J43 0.2+ 0.2- 200906 G96 0.1- 0.3- 200918 G96 0.2- 0.1- 201110 J43 0.3- 0.4+ 200907 F51 0.1- 0.2+ 200918 F51 0.1- 0.0 201110 J43 0.5- 0.2- 200907 F51 0.1- 0.0 200918 G96 0.2- 0.1+ 201114 G96 0.1+ 0.1+ 200907 F51 0.1- 0.3- 200918 F51 0.1+ 0.1- 201114 G96 0.1- 0.1- 200912 F52 0.1- 0.1- 200918 F51 0.0 0.0 201114 G96 0.1+ 0.3+ 200912 F52 0.0 0.1- 200918 F51 0.0 0.0 201114 G96 0.0 0.2+ 200912 F52 0.1+ 0.1+ 200918 A71 (2.0- 0.1+) 201205 G96 0.3+ 0.1+ 200912 F52 0.0 0.0 200918 A71 0.8- 0.8+ 201205 G96 0.4+ 0.1- 200912 K83 0.5- 0.8- 200918 A71 0.1+ 0.2- 201205 G96 0.0 0.4+ 200912 L27 0.5- 0.2+ 200925 F52 0.1- 0.1+ 201205 G96 0.3+ 0.0 200912 K83 0.7+ 0.1- 200925 F52 0.1+ 0.4- 201208 F52 0.0 0.1- 200912 L27 0.2- 0.3+ 200925 F52 0.0 0.9+ 201208 F52 0.0 0.2- 200912 L27 0.1+ 0.3+ 201006 F51 0.1+ 0.2+ 201208 F52 0.1+ 0.1- 200913 L01 0.2- 0.2- 201006 F51 0.0 0.0 201208 F52 0.0 0.1- 200913 L01 0.1- 0.3+ 201006 F51 0.1+ 0.0 2021/ 200913 L01 0.4+ 0.5- 201006 F51 0.1+ 0.0 210108 D29 0.0 0.2+ 200913 L01 0.4- 0.1- 201007 G96 0.3- 0.1- 210108 D29 0.2+ 0.5+ 200913 568 0.1+ 0.0 201007 G96 0.3- 0.0 210108 D29 0.2+ 0.0 200913 568 0.1+ 0.1- 201007 G96 0.3- 0.0 210708 G96 0.4+ 0.0 200913 568 0.1+ 0.0 201007 G96 0.0 0.0 210708 G96 0.4+ 0.1- 200913 C95 0.1- 0.1- 201011 F51 0.0 0.1- 210708 G96 0.2+ 0.0 200913 C95 0.2- 0.9+ 201011 F51 0.0 0.0 210708 G96 0.5+ 0.2- 200913 204 0.0 0.1- 201014 G96 0.0 0.1+ 210714 T08 0.3- 0.0 200913 204 0.2+ 0.0 201014 G96 0.2- 0.1+ 210714 T08 0.0 0.3+ 200913 970 0.4+ 0.2+ 201014 G96 0.2- 0.1+ 210714 T08 0.4- 0.5- 200913 970 0.4- 0.1+ 201014 G96 0.3+ 0.0 210714 T08 0.7- 0.1+ 200913 L07 0.1+ 0.1+ 201022 F52 0.1- 0.3- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 Aug. 15