Nakano Note (Nakano wa Kangaeru noda) NK 5109 P/2022 R1 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 50 observations 2022 June 23 to 2023 Nov. 14. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.53 arc second. 2023 November observations show the residual of -73" for Right Ascension and -14" for Declination from an orbit in CH 2023. See an orbit in CBET 5168. Epoch = 2023 Oct. 23.0 TT T = 2023 Oct. 8.89993 +/- 0.01103 (m.e.) TT Peri. = 222.12838 +/- 0.00177 Node = 176.08643 +/- 0.00015 (2000.0) Inc. = 7.38574 +/- 0.00002 q = 3.5734612 +/- 0.0000246 AU e = 0.5065802 +/- 0.0000180 a = 7.2422329 +/- 0.0002680 AU n' = 0.05057028 +/- 0.00000281 P = 19.490 +/- 0.0010814 years (+/- 0.39 day) The predicted orbit for the 2042 return is as follows: T = 2042 June 9.97539 TT Epoch = 2042 June 5.0 TT Peri. = 220.76572 e = 0.4978027 Node = 175.41352 (2000.0) a = 7.0575457 AU Inc. = 7.42980 n'= 0.05256825 q = 3.5442802 AU P = 18.749 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 220902 L01 0.4- 1.0+ 221108 Q62 0.6- 0.9- 220623 F52 0.2- 0.2- 220902 A77 0.6+ 0.5+ 221108 Q62 0.2+ 0.2+ 220720 F52 0.0 0.0 220902 L01 0.3- 0.9+ 221108 Q62 0.3+ 0.9- 220727 F52 0.1- 0.1- 220902 L01 0.5- 0.6+ 221118 Q62 1.4+ 0.3- 220727 F52 0.1+ 0.1- 220902 L01 0.6- 0.0 221118 Q62 0.3- 1.6- 220727 F52 0.1+ 0.1- 220902 L01 0.2- 0.3+ 2023/ 220727 F52 0.0 0.1- 220902 A77 1.6- 0.7- 231112 V00 0.1+ 0.3+ 220819 F51 0.2+ 0.0 220902 W62 0.0 0.2+ 231112 V00 0.4+ 0.2+ 220819 F51 0.0 0.2+ 220902 W62 0.4- 0.2- 231112 V00 0.6+ 0.3- 220901 F52 0.0 0.2+ 220902 W62 0.3- 0.4+ 231112 V00 0.2- 0.1+ 220901 F52 0.0 0.0 220902 W76 0.1- 0.2+ 231112 V00 0.2+ 0.1- 220901 F52 0.2+ 0.1+ 220902 W76 0.2- 0.1+ 231112 V00 0.2- 0.1- 220901 F52 0.2+ 0.2+ 220903 M21 0.2- 0.4- 231112 V00 0.6- 0.3+ 220901 F52 0.1+ 0.1+ 220903 M21 0.2- 0.3+ 231112 V00 0.1- 0.4- 220901 F52 0.3+ 0.2+ 221017 215 1.7- 0.2- 231114 Q11 0.4- 0.4+ 220901 G00 0.3- 0.5- 221017 215 0.3+ 0.5- 231114 Q11 0.3- 0.3+ 220901 G00 0.9- 0.4- 221017 215 0.7+ 0.7- 220901 A77 1.1- 0.8- 221108 Q62 1.5- 0.9- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2023 Dec. 2