Nakano Note (Nakano wa Kangaeru noda) NK 4644 P/2021 V2 (Fuls)
The following improved orbital elements, by S. Nakano, are from 100 observations 2021 Aug. 7 to 2022 Jan. 31. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.32 arc second. See the previous orbits in CBET 5068 and NK 4603. Epoch = 2023 Jan. 16.0 TT T = 2023 Jan. 21.42342 +/- 0.00512 (m.e.) TT Peri. = 259.82069 +/- 0.00172 Node = 232.28337 +/- 0.00013 (2000.0) Inc. = 12.69373 +/- 0.00013 q = 3.4970150 +/- 0.0000959 AU e = 0.6136644 +/- 0.0000489 a = 9.0517539 +/- 0.0011733 AU n' = 0.03619137 +/- 0.00000704 P = 27.233 +/- 0.0052949 years (+/- 1.93 days) The predicted orbit for the 2050 return is as follows: T = 2050 June 20.97300 TT Epoch = 2050 June 3.0 TT Peri. = 259.24734 e = 0.6219483 Node = 231.96883 (2000.0) a = 9.3384375 AU Inc. = 12.63949 n'= 0.03453765 q = 3.5304126 AU P = 28.537 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2021/ 211108 587 0.3+ 0.1- 211225 T08 0.3- 0.1+ 210807 F51 0.3+ 0.2- 211108 H06 0.0 0.1+ 211225 T08 0.3+ 0.8- 210807 F51 0.0 0.0 211108 H06 0.0 0.2+ 211225 T08 0.4+ 0.3- 210807 F51 0.1+ 0.0 211108 D29 0.2+ 0.1- 211225 T08 0.3- 0.2- 210816 F51 0.0 0.1- 211108 D29 1.1+ 0.4- 211227 G96 0.2- 0.2- 210816 F51 0.1+ 0.1- 211108 D29 0.6+ 0.7- 211227 G96 0.2- 0.1- 210820 F51 0.0 0.0 211108 A77 0.3- 0.3+ 211227 G96 0.1- 0.0 210820 F51 0.0 0.0 211108 A77 0.1- 0.1- 211227 G96 0.3- 0.2- 210820 F51 0.1+ 0.1+ 211108 A77 0.1- 0.2- 211227 D29 0.3- 0.0 210820 F51 0.0 0.1- 211108 215 0.2- 0.0 211227 D29 0.2- 0.0 211028 F52 0.0 0.1+ 211108 215 0.3- 0.0 211227 D29 0.1- 0.2- 211028 F52 0.2+ 0.1- 211108 215 0.7- 0.0 211228 D29 0.2- 0.3- 211028 F52 0.1+ 0.1+ 211109 Q11 0.3- 0.3+ 211228 D29 0.3- 0.0 211028 F52 0.0 0.1- 211109 Q11 0.3- 0.4+ 211228 D29 0.2- 0.0 211031 F52 0.2+ 0.0 211109 Q11 0.2- 0.4+ 211229 D29 0.2+ 0.7- 211031 F52 0.2+ 0.0 211111 349 1.0- 0.2- 211229 D29 0.4+ 0.3+ 211031 F52 0.3+ 0.0 211111 349 0.7- 0.1+ 211229 D29 0.5- 0.4+ 211031 F52 0.3+ 0.1- 211113 Z10 0.2+ 0.2+ 2022/ 211107 G96 0.1- 0.0 211113 Z10 0.1- 0.2+ 220101 D29 0.1- 0.3- 211107 G96 0.0 0.2- 211113 Z10 0.7+ 0.8+ 220101 D29 0.4- 0.0 211107 G96 0.2- 0.1+ 211115 G96 0.1+ 0.1+ 220101 D29 0.2- 0.3- 211107 G96 0.0 0.1+ 211115 G96 0.1- 0.1- 220109 E94 0.8+ 1.2+ 211107 F52 0.0 0.0 211115 G96 0.1+ 0.1+ 220109 E94 1.2- 0.6+ 211107 F52 0.1+ 0.0 211115 G96 0.6- 0.2- 220109 E94 0.4- 0.4+ 211107 F52 0.0 0.0 211127 F52 0.1+ 0.0 220109 E94 0.1+ 0.6+ 211107 F52 0.1+ 0.0 211127 F52 0.2+ 0.1- 220128 Q11 0.0 0.0 211107 G96 0.1- 0.0 211127 F52 0.0 0.1- 220128 Q11 0.0 0.0 211107 G96 0.0 0.1+ 211127 F52 0.1+ 0.1- 220128 Q11 0.0 0.1- 211107 G96 0.1- 0.1+ 211130 G96 0.2+ 0.0 220130 D29 0.2+ 0.6- 211107 G96 0.1- 0.1- 211130 G96 0.0 0.0 220130 D29 0.0 0.2- 211108 587 0.0 0.0 211130 G96 0.2+ 0.1- 220130 D29 0.4+ 0.3+ 211108 204 0.1+ 0.3+ 211130 G96 0.0 0.0 220131 Q11 0.4+ 0.2- 211108 204 0.3- 0.1+ 211222 Q21 0.1- 0.4+ 220131 Q11 0.4+ 0.2- 211108 587 0.0 0.4- 211222 Q21 1.6+ 0.3+ 220131 Q11 0.3+ 0.3- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Feb. 13