Nakano Note (Nakano wa Kangaeru noda) NK 4348 C/2020 F6 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 91 observations 2020 Mar. 21 to July 20. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.31 arc second. The comet has passed 2.12 AU from Uranus on 2011 Jan. 18 and 1.27 AU from Jupiter on 2019 Aug. 20 UT. See the previous orbit in CBET 4748 and NK 4151. Epoch = 2020 Apr. 21.0 TT T = 2020 Apr. 11.55847 +/- 0.00118 (m.e.) TT Peri. = 344.58987 +/- 0.00031 Node = 207.88017 +/- 0.00011 (2000.0) Inc. = 174.58129 +/- 0.00004 q = 3.5110243 +/- 0.0000105 AU e = 0.9907857 +/- 0.0000411 1/a = +0.0026244 +/- 0.0000117 1/AU origin = +0.002479 (Q= 7) future = +0.003051 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 200421 F51 0.1- 0.2+ 200514 G96 0.2+ 0.4- 200321 F51 0.1- 0.4+ 200421 F51 0.1- 0.0 200514 F52 0.1+ 0.1+ 200321 F51 0.3+ 0.1- 200421 F51 0.1- 0.1- 200514 F52 0.1- 0.0 200321 F51 0.2+ 0.2- 200422 215 0.7+ 0.7+ 200514 F52 0.1- 0.3+ 200322 568 0.1- 0.0 200422 215 0.3+ 0.0 200519 F52 0.2+ 0.3+ 200322 568 0.0 0.0 200422 215 0.0 0.5- 200519 F52 0.1- 0.1- 200322 568 0.0 0.0 200422 F51 0.1+ 0.1+ 200519 F52 0.1- 0.1- 200322 568 0.1- 0.1- 200422 F51 0.1+ 0.1+ 200519 F52 0.2+ 0.1- 200322 568 0.0 0.0 200422 F51 0.1- 0.0 200520 474 0.5+ 0.1- 200322 568 0.0 0.0 200422 F51 0.1+ 0.0 200520 474 0.3+ 0.3- 200322 F51 0.1- 0.0 200425 F51 0.1+ 0.0 200520 474 0.0 0.2- 200322 F51 0.1- 0.0 200425 F51 0.2+ 0.2- 200520 474 0.0 0.1- 200322 F51 0.1- 0.1- 200426 F51 0.0 0.0 200523 568 0.1- 0.1+ 200324 568 0.0 0.0 200426 F51 0.1- 0.2- 200523 568 0.1- 0.1+ 200324 568 0.0 0.1- 200426 F51 0.2- 0.2- 200523 F52 0.2+ 0.4+ 200324 568 0.0 0.0 200426 F51 0.3+ 0.0 200523 F52 0.2+ 0.1- 200327 Q62 0.6- 0.1- 200427 G96 0.1+ 0.4+ 200523 F52 0.1- 0.1- 200327 Q62 0.8- 0.4+ 200427 G96 0.0 0.1- 200524 Q11 0.2- 0.6- 200329 L01 1.2+ 0.3- 200427 G96 0.2+ 0.4- 200524 Q11 0.2- 0.3- 200329 L01 0.1- 0.8+ 200427 G96 0.2+ 0.2- 200525 G96 0.6+ 0.5- 200402 F51 0.1+ 0.0 200428 F51 0.2- 0.1+ 200525 G96 0.8+ 1.5- 200402 F51 0.1- 0.0 200428 F51 0.2- 0.1+ 200525 G96 0.1+ 0.2- 200402 F51 0.4+ 0.0 200428 F51 0.2- 0.0 200525 G96 0.4+ 0.4+ 200402 F51 0.1- 0.0 200428 F51 0.2+ 0.0 200622 568 0.1- 0.1+ 200406 I52 0.4- 0.0 200430 G96 0.3- 0.1+ 200622 568 0.1- 0.0 200406 I52 0.3+ 0.4- 200430 G96 0.2+ 0.2- 200622 568 0.0 0.0 200406 I52 0.5- 1.9- 200430 G96 0.2+ 0.1- 200622 568 0.1- 0.0 200416 G96 0.0 0.2- 200430 G96 0.0 0.2- 200720 568 0.1+ 0.0 200416 G96 0.2- 0.3- 200514 G96 0.2+ 0.4- 200720 568 0.0 0.1- 200416 G96 0.0 0.5- 200514 G96 0.4+ 0.4+ 200720 568 0.1- 0.1- 200421 F51 0.2- 0.0 200514 G96 0.5+ 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 Jan. 8