Nakano Note (Nakano wa Kangaeru noda) NK 4426 P/2020 S7 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 123 observations 2020 Aug. 22 to Dec. 6. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.30 arc second. See an orbit in CBET 4875. Epoch = 2020 Nov. 7.0 TT T = 2020 Nov. 18.05211 +/- 0.01472 (m.e.) TT Peri. = 40.40060 +/- 0.00362 Node = 328.01864 +/- 0.00023 (2000.0) Inc. = 16.09202 +/- 0.00016 q = 2.9610068 +/- 0.0000207 AU e = 0.4105201 +/- 0.0000078 a = 5.0230838 +/- 0.0000752 AU n' = 0.08754845 +/- 0.00000197 P = 11.258 +/- 0.0002527 years (+/- 0.09 day) The predicted orbit for the 2032 return is as follows: T = 2032 Mar. 5.46707 TT Epoch = 2032 Feb. 18.0 TT Peri. = 41.26518 e = 0.4109582 Node = 327.77477 (2000.0) a = 5.0242575 AU Inc. = 16.08121 n'= 0.08751777 q = 2.9594977 AU P = 11.262 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 200918 711 (2.4+ 0.1+) 201007 F51 0.2+ 0.1- 200822 F52 0.2- 0.4- 200918 711 (2.3+ 0.0 ) 201007 F51 0.3- 0.2+ 200822 F52 0.2+ 0.1- 200918 L01 0.4- 0.1+ 201008 F52 0.1+ 0.2- 200822 F52 0.1- 0.1+ 200918 L01 0.5- 0.3- 201009 F51 0.0 0.1+ 200911 G96 0.3- 0.4+ 200918 L01 0.2- 0.1- 201009 F51 0.0 0.0 200911 G96 0.1- 0.6- 200918 L01 0.4- 0.5+ 201009 F51 0.0 0.1- 200911 G96 0.2- 0.5- 200919 F51 0.4- 0.1- 201009 F51 0.0 0.1- 200911 G96 0.0 0.6- 200919 F51 0.1+ 0.1- 201009 568 0.2- 0.0 200912 F52 0.1- 0.0 200919 F51 0.0 0.1+ 201009 568 0.1+ 0.1+ 200912 F52 0.1+ 0.1+ 200919 F51 0.2+ 0.0 201010 F52 0.2- 0.0 200912 F52 0.0 0.0 200919 F65 0.0 0.5- 201010 F52 0.1+ 0.0 200912 F52 0.1- 0.2+ 200919 F65 0.3- 0.2+ 201010 F52 0.2+ 0.1+ 200912 D29 0.3+ 0.1- 200919 F65 0.1- 0.0 201011 F51 0.0 0.0 200912 D29 0.2- 0.8+ 200919 F65 0.2+ 0.3- 201011 F51 0.1+ 0.1- 200912 D29 0.5- 0.3- 200919 F65 0.2- 0.0 201011 F51 0.1+ 0.1- 200915 F51 0.0 0.0 200922 G96 0.0 0.2- 201011 F51 0.0 0.0 200915 F51 0.0 0.0 200922 G96 0.2- 0.2- 201013 711 0.7- 0.8+ 200915 F51 0.0 0.1+ 200922 G96 0.1+ 0.3- 201013 711 0.9- 0.8+ 200915 F51 0.1+ 0.1+ 200922 G96 0.1- 0.3- 201013 711 0.6- 0.8+ 200916 F51 0.0 0.1+ 200922 F51 0.0 0.0 201013 E10 0.3- 0.4+ 200916 F51 0.0 0.0 200922 F51 0.0 0.0 201013 E10 0.0 0.3+ 200916 F51 0.0 0.1- 200922 F51 0.1+ 0.1+ 201013 E10 0.0 0.2+ 200916 F51 0.1- 0.0 200922 F51 0.1- 0.0 201013 K51 0.0 0.0 200916 F51 0.0 0.1+ 200924 E10 0.2- 0.4+ 201013 K51 0.1+ 0.2- 200916 F51 0.0 0.0 200924 E10 0.3- 0.2+ 201013 K51 0.1- 0.1+ 200916 F51 0.0 0.0 200924 E10 0.3+ 0.4+ 201014 711 0.7+ 0.5+ 200917 711 0.3- 0.1+ 200924 E10 0.0 0.4+ 201014 711 1.4+ 1.2+ 200917 711 0.3- 0.1+ 200924 E10 0.5+ 0.4+ 201014 711 0.3- 0.2- 200917 711 0.2- 0.1+ 200924 E10 0.2- 0.2+ 201015 711 0.4+ 0.1+ 200917 568 0.0 0.1+ 200924 E10 0.3- 0.3+ 201015 711 0.3+ 0.0 200917 568 0.0 0.1+ 200925 F51 0.1- 0.1- 201015 711 0.5+ 0.0 200917 568 0.0 0.1+ 200925 F51 0.0 0.1- 201018 A71 0.2- 0.1- 200917 F51 0.0 0.1+ 200925 F51 0.1- 0.4- 201018 A71 0.5- 0.5+ 200917 F51 0.1+ 0.0 200925 F51 0.2+ 0.5- 201018 A71 0.2+ 0.1- 200917 F51 0.1+ 0.0 200926 G96 0.2+ 0.3- 201020 568 0.1- 0.0 200917 F51 0.1+ 0.1+ 200926 G96 0.3+ 0.1- 201020 568 0.1- 0.0 200917 F51 0.0 0.0 200926 G96 0.7+ 1.0- 201020 568 0.1- 0.0 200917 F51 0.0 0.2+ 200926 G96 0.0 0.5- 201206 G96 0.1+ 0.5- 200917 Q62 0.3+ 0.2- 201004 I52 0.2+ 0.6+ 201206 G96 0.2+ 0.5- 200917 Q62 0.4+ 0.2- 201004 I52 0.4- 0.4- 201206 G96 0.2- 0.3- 200917 F51 0.0 0.2+ 201004 I52 0.5+ 0.5+ 201206 G96 0.0 0.4- 200917 F51 0.1+ 0.0 201007 F51 0.0 0.0 200918 711 (2.2+ 0.0 ) 201007 F51 0.0 0.0 ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2021 Mar. 28

Back to Nakano Note Page