Nakano Note (Nakano wa Kangaeru noda) NK 4890 P/2022 P2 (ZTF)
The following improved orbital elements, by S. Nakano, are from 94 observations 2022 Aug. 15 to Nov. 30. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.80 arc second. See an orbit in CBET 5165. Epoch = 2022 June 30.0 TT T = 2022 July 10.93791 +/- 0.04124 (m.e.) TT Peri. = 137.66327 +/- 0.01859 Node = 291.23691 +/- 0.00193 (2000.0) Inc. = 12.44312 +/- 0.00027 q = 1.9832852 +/- 0.0002402 AU e = 0.5591097 +/- 0.0003911 a = 4.4983643 +/- 0.0040278 AU n' = 0.10330519 +/- 0.00013875 P = 9.541 +/- 0.0128141 years (+/- 4.68 days) The predicted orbit for the 2032 return is as follows: T = 2032 Feb. 6.95086 TT Epoch = 2032 Feb. 18.0 TT Peri. = 137.75871 e = 0.5580895 Node = 291.20778 (2000.0) a = 4.5195582 AU Inc. = 12.42734 n'= 0.10257939 q = 1.9972403 AU P = 9.608 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2022/ 220824 L06 0.5+ 0.1+ 220903 G00 (2.0+ 0.1-) 220815 I41 0.2- 0.1+ 220824 L06 0.7+ 0.2+ 220905 H06 (2.0+ 0.1+) 220815 I41 0.2- 0.3- 220824 G40 1.0- 0.8+ 220905 H06 1.8+ 0.1- 220815 I41 0.5- 0.1+ 220824 G40 1.2- 0.2+ 220908 A77 (2.5+ 0.2-) 220815 I41 0.4- 0.2- 220825 L01 1.7+ 0.4- 220908 A77 (2.1+ 0.1-) 220816 I41 0.1- 0.1- 220825 L01 1.7+ 0.6- 220908 A77 (2.0+ 1.1-) 220816 I41 0.1- 0.4- 220825 L01 1.0+ 0.1- 220912 A77 (2.8+ 0.0 ) 220816 I41 0.0 0.1+ 220825 L01 1.0+ 0.5- 220912 A77 (2.2+ 1.1+) 220817 I41 0.3+ 0.1- 220825 L01 1.0+ 1.1- 220919 703 0.4+ 1.4- 220817 I41 0.2- 0.4- 220826 A77 1.8+ 1.1+ 220919 703 0.8+ 1.2- 220817 I41 0.4+ 0.0 220826 A77 1.0+ 1.1+ 220919 703 (0.7- 2.3-) 220817 I41 0.1- 0.5- 220826 A77 0.7+ 0.8+ 220928 970 (3.7+ 0.6-) 220817 I41 0.5+ 0.0 220826 T05 0.8- 0.2+ 220928 970 (3.4+ 1.3-) 220818 I41 0.1- 0.2+ 220826 T05 1.2- 0.5+ 220929 A77 (2.9+ 1.4-) 220818 I41 0.0 0.5+ 220826 T05 1.4- 0.9+ 220929 A77 (3.6+ 1.5-) 220818 I41 0.1+ 0.6- 220827 K83 1.6+ 0.2+ 220929 A77 0.3+ 0.7+ 220818 I41 0.1- 0.1+ 220827 K83 1.5+ 0.1- 221002 G00 1.5- 1.6+ 220818 I41 0.7+ 0.4+ 220827 K83 1.3+ 0.4- 221002 G00 (2.8- 2.0+) 220819 I41 0.3- 0.1- 220829 K74 (2.6+ 0.0 ) 221002 G00 0.7- 1.6+ 220819 I41 0.8- 0.1- 220829 K74 1.9+ 0.5+ 221021 703 (5.5- 3.6+) 220819 U69 0.4+ 0.3+ 220831 585 0.5+ 0.5+ 221021 703 1.2- 1.0+ 220819 I41 0.8- 0.1- 220831 585 1.7+ 1.0+ 221021 703 1.3- 0.7- 220819 U69 0.3+ 0.2+ 220831 585 1.0+ 0.4+ 221023 Q11 (3.9+ 0.1+) 220819 I41 (2.0- 0.4-) 220831 585 0.2- 0.9+ 221023 Q11 (3.8+ 0.0 ) 220820 204 0.1- 0.2- 220831 585 0.6+ 0.8+ 221026 D95 (1.9+ 2.6+) 220820 204 1.0- 0.1+ 220831 G00 1.1+ 0.4- 221026 D95 (2.2+ 0.9+) 220820 L06 0.8+ 0.7+ 220831 G00 1.5+ 0.5- 221026 D95 (2.5+ 0.5-) 220820 L06 0.7+ 0.7+ 220831 G00 1.2+ 0.2- 221103 X03 (2.8+ 0.1-) 220820 L06 0.8+ 0.4+ 220831 G00 1.8+ 0.1+ 221103 X03 (2.6+ 0.3-) 220820 L06 0.5+ 0.8+ 220831 349 0.6+ 0.3+ 221103 X03 0.9+ 1.0- 220820 950 1.7- 0.5+ 220831 349 0.2+ 0.3- 221125 G00 0.8+ 0.1+ 220820 950 1.6- 0.3+ 220901 A77 1.7+ 0.2+ 221125 G00 0.3- 0.8+ 220820 950 1.3- 0.9+ 220901 A77 1.5+ 0.6- 221125 G00 0.3+ 0.8+ 220821 L51 0.7- 0.3- 220901 A77 (2.6+ 0.8-) 221126 Q11 0.8+ 0.1- 220821 L51 0.3+ 0.1+ 220902 215 (2.3+ 1.0+) 221126 Q11 1.1+ 0.0 220821 L51 0.7+ 0.0 220902 215 0.4+ 0.3- 221126 Q11 1.0+ 0.0 220823 Z28 0.3+ 0.2- 220903 G00 1.3+ 0.1+ 221130 G96 0.4- 0.7+ 220823 Z28 0.3+ 0.5- 220903 G00 0.8+ 0.2- 221130 G96 0.2+ 0.0 220824 L06 0.7+ 0.3+ 220903 G00 1.7+ 0.1- 221130 G96 0.4+ 1.0- 220824 L06 0.8+ 0.1- 220903 G00 1.6+ 0.1+ 221130 G96 0.4+ 0.4+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 Dec. 12