Nakano Note (Nakano wa Kangaeru noda) NK 4380 C/2020 R2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 91 observations 2020 Aug. 18 to Dec. 8. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.26 arc second. See an orbit in CBET 4846. Epoch = 2022 Mar. 2.0 TT T = 2022 Feb. 24.53969 +/- 0.00286 (m.e.) TT Peri. = 211.74244 +/- 0.00129 Node = 195.09388 +/- 0.00032 (2000.0) Inc. = 53.22785 +/- 0.00053 q = 4.6917220 +/- 0.0000933 AU e = 0.9884961 +/- 0.0000445 1/a = +0.0024520 +/- 0.0000095 1/AU origin = +0.003021 (Q= 7) future = +0.002922 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 200913 204 0.0 0.2- 201007 G96 0.3- 0.0 200818 F51 0.0 0.1+ 200913 204 0.2+ 0.0 201007 G96 0.2- 0.1- 200818 F51 0.0 0.1- 200913 970 0.4+ 0.2+ 201007 G96 0.1+ 0.0 200818 F51 0.1+ 0.1+ 200913 970 0.4- 0.1+ 201014 G96 0.1+ 0.1+ 200818 F51 0.0 0.0 200913 L07 0.1+ 0.1+ 201014 G96 0.1- 0.1+ 200829 F52 0.0 0.1- 200914 L07 0.0 0.2+ 201014 G96 0.2- 0.1+ 200829 F52 0.1+ 0.0 200915 H06 0.2+ 0.0 201014 G96 0.3+ 0.0 200906 G96 0.6+ 0.3+ 200915 H06 0.3- 0.4- 201022 F52 0.0 0.3- 200906 G96 0.0 0.1- 200915 H06 0.3- 0.2- 201022 F52 0.1- 0.1- 200906 G96 0.1- 0.3- 200915 215 1.1- 0.6- 201022 F52 0.1- 0.1+ 200907 F51 0.1- 0.2+ 200915 215 0.5- 0.2+ 201022 F52 0.2+ 0.2- 200907 F51 0.1- 0.0 200915 215 0.4- 0.4- 201023 G96 0.2+ 0.1- 200907 F51 0.1- 0.3- 200918 G96 0.1- 0.1- 201023 G96 0.1+ 0.1- 200912 F52 0.1- 0.1- 200918 G96 0.1+ 0.2+ 201023 G96 0.0 0.1+ 200912 F52 0.0 0.1- 200918 G96 0.2- 0.1- 201023 G96 0.1- 0.2+ 200912 F52 0.1+ 0.1+ 200918 F51 0.1- 0.1- 201110 J43 0.5+ 0.6+ 200912 F52 0.0 0.0 200918 G96 0.2- 0.1+ 201110 J43 0.2+ 0.2- 200912 K83 0.5- 0.8- 200918 F51 0.1+ 0.1- 201110 J43 0.3- 0.4+ 200912 L27 0.5- 0.2+ 200918 F51 0.0 0.0 201110 J43 0.5- 0.2- 200912 K83 0.7+ 0.1- 200918 F51 0.0 0.0 201114 G96 0.1+ 0.1+ 200912 L27 0.2- 0.3+ 200918 A71 (2.0- 0.1+) 201114 G96 0.0 0.1- 200912 L27 0.1+ 0.3+ 200918 A71 0.7- 0.8+ 201114 G96 0.1+ 0.3+ 200913 L01 0.2- 0.2- 200918 A71 0.1+ 0.2- 201114 G96 0.0 0.2+ 200913 L01 0.1- 0.3+ 200925 F52 0.1- 0.1+ 201205 G96 0.2+ 0.2+ 200913 L01 0.4+ 0.5- 200925 F52 0.1+ 0.4- 201205 G96 0.4+ 0.1- 200913 L01 0.4- 0.1- 200925 F52 0.0 0.9+ 201205 G96 0.0 0.4+ 200913 568 0.1+ 0.0 201006 F51 0.1+ 0.2+ 201205 G96 0.3+ 0.1+ 200913 568 0.1+ 0.1- 201006 F51 0.0 0.0 201208 F52 0.1- 0.1+ 200913 568 0.1+ 0.0 201006 F51 0.1+ 0.1- 201208 F52 0.1+ 0.1- 200913 C95 0.2- 0.1- 201006 F51 0.1+ 0.0 201208 F52 0.0 0.0 200913 C95 0.2- 0.9+ 201007 G96 0.3- 0.1- 201208 F52 0.1- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 Jan. 29