Nakano Note (Nakano wa Kangaeru noda) NK 4413 C/2019 B3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 113 observations 2019 Jan. 24 to 2021 Mar. 11. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.47 arc second. The comet will pass 3.07 AU from Saturn on 2025 Mar. 16 UT. See the previous orbits in NK 4014 and NK 4074 (= HICQ 2021). Epoch = 2021 Jan. 26.0 TT T = 2021 Jan. 20.03454 +/- 0.00413 (m.e.) TT Peri. = 263.91240 +/- 0.00032 Node = 358.42818 +/- 0.00003 (2000.0) Inc. = 66.53617 +/- 0.00003 q = 6.8229789 +/- 0.0000190 AU e = 1.0024689 +/- 0.0000136 1/a = -0.0003618 +/- 0.0000020 1/AU origin = +0.000384 (Q= 9) future = +0.000280 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 190224 807 0.2- 0.4+ 190510 T05 1.4- 0.4+ 190124 F51 0.1+ 0.3- 190224 807 0.0 0.2+ 190623 E94 0.2- 0.2- 190124 F51 0.0 0.2- 190224 I47 0.7- 0.5+ 190623 E94 0.2+ 0.3+ 190124 F51 0.0 0.0 190224 I47 0.6- 0.2+ 190623 E94 0.3+ 0.2+ 190124 F51 0.1- 0.2- 190224 I47 0.6- 0.1+ 190623 E94 0.7- 0.8- 190127 807 0.0 0.1+ 190227 807 0.9+ 0.4- 190623 E94 0.2- 0.5- 190127 807 0.1- 0.0 190227 807 0.4+ 0.0 2020/ 190127 807 0.2- 0.0 190227 807 0.3+ 0.3+ 200121 Q62 0.7+ 0.2- 190128 Q62 0.1+ 0.4- 190312 474 0.7- 0.1- 200121 Q62 0.4+ 0.1- 190128 Q62 0.1+ 0.5- 190312 474 0.4- 0.3- 200327 E94 0.2- 0.7+ 190128 Q62 0.1- 0.6- 190312 474 0.2- 0.2- 200327 E94 0.2- 0.8- 190129 I47 1.0+ 0.8+ 190312 474 0.3- 0.2- 200327 E94 0.2+ 0.3+ 190129 I47 0.2+ 0.4+ 190327 T05 0.9- 1.2+ 200415 X03 0.2+ 0.3- 190131 I47 0.6- 0.9+ 190327 T05 0.6+ 0.8+ 200415 X03 0.3- 0.2- 190131 I47 0.1+ 0.4- 190327 T05 0.6+ 0.2- 200415 X03 0.3- 0.5- 190131 I47 0.4+ 0.5+ 190327 T05 0.9+ 0.8+ 200415 X03 0.3- 0.5- 190131 I47 0.6- 0.3+ 190327 T05 0.2+ 1.1+ 200415 X03 0.3- 0.6- 190201 I47 0.7+ 0.2+ 190328 R57 0.0 0.1- 200415 X03 0.4- 1.0- 190201 I47 0.5+ 0.5+ 190328 R57 0.9- 0.3- 200415 X03 0.6- 0.9- 190202 474 0.3- 0.5- 190328 R57 0.2- 0.4+ 200424 E94 0.7+ 1.3+ 190202 474 0.1- 0.4+ 190328 R57 0.3- 0.2- 200424 E94 0.5+ 0.4+ 190202 474 0.8- 0.9- 190328 R57 0.0 0.1- 200424 E94 0.3+ 0.3- 190202 474 0.1+ 0.5- 190328 R57 0.2+ 0.1- 200424 E94 1.1+ 0.2+ 190204 568 0.1+ 0.2+ 190330 J24 (2.8+ 1.2-) 200424 E94 0.1- 0.9+ 190204 568 0.0 0.1+ 190331 J24 1.9+ 0.1- 200521 E85 0.2- 0.5- 190204 568 0.0 0.0 190331 J24 (2.8+ 1.8-) 200521 E85 0.2- 0.1+ 190206 W85 0.3- 0.3- 190411 J24 (2.6+ 0.3-) 200521 E85 0.4- 0.4+ 190206 W85 0.3- 0.3- 190411 J24 (2.7+ 0.1+) 2021/ 190206 W85 0.4- 0.3- 190411 J24 1.2+ 0.3- 210203 Q62 0.1- 0.0 190206 W85 0.4- 0.4- 190426 T08 0.5+ 0.8- 210203 Q62 0.2- 0.0 190207 474 0.0 0.1- 190426 T08 0.7+ 0.6+ 210213 474 0.1- 0.2- 190207 474 0.1+ 0.1- 190426 T08 0.1+ 0.1+ 210213 474 0.1- 0.2- 190207 474 0.1+ 0.3- 190426 T08 0.4- 0.3+ 210213 474 0.0 0.3- 190215 I47 0.2+ 0.0 190426 T08 0.9+ 0.8+ 210213 474 0.1+ 0.1- 190215 I47 0.4+ 0.2- 190428 Q62 0.3- 0.6+ 210218 Q38 0.2- 1.3+ 190215 I47 0.0 0.0 190428 Q62 0.2- 0.4+ 210218 Q38 0.0 0.7- 190217 L29 0.1- 0.2- 190428 Q62 0.0 0.5+ 210218 Q38 0.5- 0.2- 190217 L29 0.2- 0.1+ 190510 T05 0.7+ 0.2+ 210311 474 0.2+ 0.1+ 190217 L29 0.4- 0.3+ 190510 T05 0.8- 0.8+ 210311 474 0.0 0.0 190224 807 0.2- 0.1+ 190510 T05 0.1- 0.5+ 210311 474 0.1+ 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 Mar. 22