Nakano Note (Nakano wa Kangaeru noda) NK 4361 C/2020 V2 (ZTF)

The following improved orbital elements, by S. Nakano, are from 122 observations 2020 Apr. 18 to Dec. 28. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.29 arc second. See an orbit in CBET 4887 (= NK 4256). Epoch = 2023 May 16.0 TT T = 2023 May 8.14271 +/- 0.06865 (m.e.) TT Peri. = 162.41495 +/- 0.00256 Node = 212.37188 +/- 0.00033 (2000.0) Inc. = 131.61224 +/- 0.00028 q = 2.2273089 +/- 0.0000784 AU e = 1.0015899 +/- 0.0000736 1/a = -0.0007138 +/- 0.0000330 1/AU origin = -0.000168 (Q= 7) future = -0.000404 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 201111 N51 0.0 0.1+ 201119 215 0.2+ 0.8+ 200418 G96 0.2+ 0.0 201111 N51 0.1- 0.0 201119 215 0.4+ 0.1+ 200418 G96 0.1- 0.2+ 201111 N51 0.1- 0.1+ 201119 G40 0.4- 0.2- 200418 G96 0.0 0.1- 201111 N51 0.1- 0.0 201119 G40 0.5+ 0.4- 200418 G96 0.1- 0.3- 201112 N51 0.2+ 0.1+ 201119 J22 0.3- 1.3- 200429 G96 0.1+ 0.2+ 201112 H06 0.0 0.2+ 201119 J04 0.3- 0.0 200429 G96 0.0 0.2+ 201112 H06 0.2- 0.2- 201119 J04 0.2- 0.0 200429 G96 0.2- 0.3- 201112 H06 0.2- 0.2- 201119 J04 0.2- 0.0 200429 G96 0.1+ 0.2- 201112 N51 0.2- 0.4- 201119 J22 0.1+ 0.2+ 200511 G96 0.3- 0.2+ 201112 N51 0.2- 0.4- 201119 J22 0.4- 0.2+ 200511 G96 0.6- 0.1+ 201112 N51 0.1- 0.4- 201120 691 0.2- 0.0 200511 G96 0.0 0.2+ 201113 N51 0.1+ 0.1+ 201120 691 0.3- 0.1+ 200511 G96 0.2+ 0.2- 201113 N51 0.1+ 0.1+ 201120 691 0.2- 0.5+ 200518 G96 0.1- 0.2+ 201113 N51 0.2- 0.3+ 201120 Q11 0.0 0.1- 200518 G96 0.2- 0.1- 201113 N51 0.2- 0.2+ 201120 Q11 0.0 0.1- 200518 G96 0.3- 0.1- 201115 204 0.1- 0.0 201122 A71 0.9+ 0.0 200518 G96 0.0 0.1+ 201115 204 0.1- 0.1+ 201122 A71 (2.0+ 0.3+) 200604 G96 0.4+ 0.2- 201117 L01 0.3- 0.3- 201122 A71 0.6+ 0.5- 200604 G96 0.3+ 0.3+ 201117 L01 0.1+ 0.3- 201122 Z08 0.3- 0.1+ 200604 G96 0.1- 0.1- 201117 L06 0.4+ 0.7+ 201122 Z08 0.2- 0.0 200613 G96 0.1+ 0.2+ 201117 L01 0.2- 0.2+ 201122 Z08 0.1- 0.0 200613 G96 0.2+ 0.3- 201117 L06 0.4+ 0.1- 201123 L01 0.2- 0.1- 200613 G96 0.1- 0.1+ 201117 L01 0.3- 0.0 201123 L01 0.0 0.1- 200613 G96 0.3+ 0.0 201117 L06 0.4+ 0.4- 201123 L01 0.3- 0.1+ 201102 I41 0.2+ 0.3+ 201117 204 0.1- 0.1- 201123 L01 0.2- 0.0 201102 I41 0.0 0.2+ 201117 204 0.0 0.1+ 201123 L01 0.2- 0.1+ 201102 I41 0.2+ 0.1- 201117 675 0.7+ 0.9- 201123 L01 0.3- 0.1+ 201102 I41 0.1+ 0.1- 201117 675 1.8+ 0.5- 201123 Q11 0.1- 0.2- 201107 N51 0.1- 0.0 201117 675 1.3+ 0.5- 201123 Q11 0.1- 0.4- 201107 N51 0.1- 0.0 201118 K88 0.0 0.1- 201124 I89 0.2- 0.0 201107 N51 0.2- 0.1+ 201118 K88 0.3+ 0.0 201124 I89 0.3+ 0.1- 201107 N51 0.1- 0.1+ 201118 A77 0.2+ 0.4+ 201126 L01 0.4- 0.1- 201110 N51 0.1+ 0.3- 201118 A77 0.0 0.4+ 201126 L01 0.4- 0.0 201110 N51 0.0 0.2- 201118 A77 0.0 0.2+ 201126 L01 0.2- 0.0 201110 N51 0.2+ 0.3- 201118 858 0.0 0.2+ 201126 L01 0.3- 0.0 201110 N51 0.2- 0.0 201118 858 0.1+ 0.1+ 201126 L01 0.3- 0.1- 201111 H06 0.2- 0.2+ 201118 858 0.3+ 0.1+ 201126 L01 0.2- 0.1- 201111 H06 0.1- 0.0 201119 L04 0.2- 0.2+ 201228 349 0.0 0.4+ 201111 N51 0.1+ 0.1- 201119 L04 0.3+ 0.4+ 201228 349 0.1- 0.2+ 201111 N51 0.3- 0.2- 201119 L07 0.2- 0.1+ 201228 349 0.2- 0.5+ 201111 N51 0.0 0.0 201119 L07 0.0 0.2+ 201111 N51 0.1+ 0.2+ 201119 215 0.4+ 0.8+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2021 Jan. 9

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