Nakano Note (Nakano wa Kangaeru noda) NK 4347 C/2019 V1 (Borisov)
The following improved orbital elements, by S. Nakano, are from 103 observations 2019 Nov. 1 to 2020 Mar. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.71 arc second. See an orbit in CBET 4696, HICQ 2020 and NK 4063. Epoch = 2020 July 10.0 TT T = 2020 July 16.57279 +/- 0.00387 (m.e.) TT Peri. = 51.20128 +/- 0.00167 Node = 83.20564 +/- 0.00004 (2000.0) Inc. = 61.86451 +/- 0.00064 q = 3.0971623 +/- 0.0000580 AU e = 0.9987383 +/- 0.0000251 1/a = +0.0004074 +/- 0.0000081 1/AU origin = +0.000253 (Q= 7) future = +0.000453 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 191106 850 0.6- 0.0 191206 215 0.0 0.3+ 191101 L51 1.5+ 1.3- 191106 850 0.6- 1.0+ 191207 L27 1.6+ 0.4- 191102 L51 0.2+ 1.0- 191106 850 0.0 0.8+ 191207 L27 0.0 0.0 191102 L51 (0.0 2.1+) 191106 Q11 0.7- 0.2+ 191222 I81 1.4- 0.9- 191102 L51 0.9- 0.5+ 191106 Q11 0.5- 0.2+ 191222 I81 0.1+ 1.3+ 191102 L51 0.9+ 1.0- 191106 Q11 0.7- 0.2+ 191222 I81 0.9- 1.1+ 191102 L51 0.9- 0.7- 191107 B96 0.0 0.7- 191228 Q11 1.2+ 0.3- 191102 L51 0.7+ 0.3- 191108 B96 0.3- 1.5+ 191228 Q11 1.3+ 0.2- 191103 I47 0.3- 0.9+ 191108 B96 0.7- 1.4+ 191228 Q11 1.2+ 0.2- 191103 I47 1.1- 0.7+ 191108 970 (2.7- 2.3-) 191229 A77 0.0 1.0+ 191103 I47 1.4- 0.4- 191108 970 0.3- 0.7+ 191229 A77 0.5- 0.6+ 191103 850 0.3- 0.1- 191108 970 0.2+ 0.6+ 191229 461 0.6+ 0.5+ 191103 850 0.1+ 0.4- 191108 W76 1.9- 0.1- 191229 461 0.3+ 0.2+ 191103 850 0.5- 0.4- 191108 W76 0.5- 0.7+ 191229 461 0.1- 0.3+ 191103 850 0.1+ 0.7- 191108 W76 (0.2- 2.1+) 191230 130 1.5- 0.0 191103 Q11 0.1+ 0.3+ 191125 461 0.1+ 0.4- 191230 130 0.5+ 0.1- 191103 Q11 0.2- 0.2+ 191125 461 0.0 0.2+ 2020/ 191103 Q11 0.0 0.2+ 191126 A77 1.0- 1.3+ 200101 204 0.3+ 0.1+ 191104 C95 1.2+ 1.4- 191126 A77 1.0- 0.9+ 200101 204 0.3- 0.5+ 191104 C95 1.4+ 0.1+ 191126 D95 1.1+ 0.0 200104 G96 0.8- 0.8+ 191104 C95 0.6+ 0.6+ 191126 D95 0.2+ 0.4- 200104 G96 0.3- 0.1+ 191104 A77 (2.2- 0.6+) 191127 G40 0.7+ 0.3+ 200104 G96 0.4+ 0.4+ 191104 A77 0.8- 0.6+ 191127 G40 0.2- 0.4+ 200104 G96 0.2+ 0.1+ 191104 A77 (3.2- 0.5-) 191127 G40 0.0 0.6+ 200106 118 1.7- 0.1+ 191104 H06 0.0 0.3+ 191128 568 0.2+ 0.6- 200106 118 0.6+ 0.3- 191104 H06 0.6- 0.5+ 191128 568 0.2+ 0.7- 200116 215 0.7+ 0.8+ 191104 Q11 0.0 0.4+ 191128 568 0.2+ 0.6- 200116 215 (0.8+ 2.1+) 191104 Q11 0.2+ 0.6+ 191129 204 0.9+ 1.4+ 200116 215 1.5+ 1.7+ 191104 Q11 0.0 0.5+ 191129 204 0.1- 0.1- 200120 Q11 0.3- 0.9+ 191105 H06 0.5+ 0.5- 191129 Q11 0.4- 0.0 200120 Q11 0.3- 1.0+ 191105 H06 0.5+ 0.1- 191129 Q11 0.2- 0.2- 200218 A77 0.1- 1.6+ 191105 H06 0.3+ 0.1- 191129 Q11 0.3- 0.1- 200218 A77 1.0- 1.0+ 191105 Q11 0.4- 0.2+ 191130 K77 (2.1+ 1.4+) 200218 A77 0.1- 0.4- 191105 Q11 0.2- 0.2+ 191130 K77 0.1- 0.6+ 200226 568 0.0 0.1- 191105 Q11 0.3- 0.3+ 191201 H45 (1.2+ 2.4+) 200226 568 0.0 0.2- 191105 L51 1.2- 1.6- 191201 H45 (2.1+ 1.5+) 200323 568 0.1- 0.1- 191105 L51 0.9+ 0.7+ 191201 H45 (2.7+ 0.6+) 200323 568 0.0 0.1- 191105 L51 0.1- 0.0 191206 215 1.3- 1.6+ 191106 850 0.7+ 1.9+ 191206 215 0.6- 0.6+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 Jan. 6