Nakano Note (Nakano wa Kangaeru noda) NK 4107 C/2020 F2 (ATLAS)
The following improved orbital elements, by S. Nakano, are from 149 observations 2019 May 27 to 2020 Apr. 28. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.34 arc second. The comet has passed 7.78 AU from Neptune on 2006 Mar. 9 and 2.89 AU from Saturn on 2018 Mar. 12 UT. Also comet will pass 5.02 AU from Uranus on 2033 Oct. 9 UT. See the previous orbit in CBET 4739 ( = NK 4069). Epoch = 2022 June 30.0 TT T = 2022 July 15.72668 +/- 0.01411 (m.e.) TT Peri. = 48.35963 +/- 0.00156 Node = 250.27248 +/- 0.00002 (2000.0) Inc. = 163.58492 +/- 0.00006 q = 8.8166674 +/- 0.0001382 AU e = 1.0052332 +/- 0.0000250 1/a = -0.0005936 +/- 0.0000028 1/AU origin = +0.000041 (Q= 8) future = +0.000008 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 200324 I47 0.5+ 0.2+ 200330 W88 0.3- 0.4+ 190527 F51 0.0 0.0 200324 I47 0.1+ 0.1- 200330 I47 0.1+ 0.4+ 190527 F51 0.1- 0.1- 200324 W88 0.4- 0.1- 200330 W88 0.6- 0.2+ 190527 F51 0.0 0.0 200324 W88 0.1+ 0.1- 200330 I47 0.2- 0.4- 190527 F51 0.1+ 0.0 200324 I47 0.0 0.0 200330 H36 0.1- 0.0 190529 F51 0.2- 0.1- 200324 W88 0.4- 0.1+ 200330 H36 0.7- 0.2+ 190529 F51 0.1- 0.0 200324 E94 0.7- 0.2+ 200330 H36 0.3- 0.2+ 190529 F51 0.2+ 0.1- 200324 E94 0.5- 0.4- 200331 G40 0.3+ 0.0 190622 F51 0.1- 0.1+ 200324 E94 0.3- 0.1+ 200331 G40 0.8- 0.0 190622 F51 0.0 0.0 200324 E94 0.7- 0.5+ 200331 858 0.1- 0.0 190622 F51 0.0 0.1- 200324 E94 0.2- 0.0 200331 858 0.4- 0.1+ 190622 F51 0.1+ 0.0 200324 E94 0.4- 0.0 200331 858 0.4- 0.2+ 190630 F51 0.0 0.0 200324 E94 0.0 0.0 200401 118 0.1- 0.3- 190630 F51 0.0 0.0 200324 E94 0.6- 0.1- 200401 118 0.0 0.0 190630 F51 0.1+ 0.0 200324 E94 0.4- 0.5+ 200401 J22 0.7- 0.4+ 190630 F51 0.0 0.0 200324 E94 0.2+ 0.2+ 200401 J22 0.4- 0.2+ 190705 F52 0.1+ 0.2+ 200324 E94 0.2- 0.4- 200401 J22 0.1- 0.0 190705 F52 0.0 0.0 200324 E94 0.6- 0.9+ 200401 J22 0.2+ 0.2- 190705 F52 0.0 0.0 200324 Q11 0.3- 0.4+ 200401 J95 0.1+ 0.3+ 190707 F51 0.0 0.0 200324 Q11 0.1+ 0.8+ 200401 J22 0.1- 0.0 190707 F51 0.0 0.1+ 200324 Q11 0.2+ 0.5+ 200401 J95 0.2- 0.3+ 190707 F51 0.0 0.0 200325 K74 0.8- 0.6+ 200403 204 0.0 0.4+ 190707 F51 0.1- 0.0 200325 K74 0.9- 0.4+ 200403 204 0.2- 0.6- 190801 F51 0.0 0.1+ 200325 K74 1.0- 0.5+ 200403 850 0.3+ 1.1+ 190801 F51 0.0 0.1+ 200325 X02 0.5- 0.4- 200403 850 0.3- 0.3- 190820 F51 0.0 0.0 200325 X02 0.0 0.1- 200403 850 0.1+ 1.7+ 190820 F51 0.0 0.0 200325 N50 (2.5- 0.5+) 200416 G96 0.1- 0.1- 190820 F51 0.0 0.0 200325 N50 (2.2- 0.7+) 200416 G96 0.1+ 0.0 190820 F51 0.0 0.0 200325 N50 (2.3- 0.5+) 200416 G96 0.3+ 0.0 190820 F51 0.1- 0.0 200325 N50 (3.0- 0.3+) 200416 G96 0.0 0.1- 2020/ 200325 N50 (3.0- 0.6+) 200416 T08 0.3- 0.2- 200205 F51 0.2+ 0.2- 200325 N50 (0.8+ 3.3+) 200416 T08 0.2+ 0.2+ 200205 F51 0.1+ 0.2- 200325 N50 (3.7- 1.2+) 200416 T08 0.1+ 0.8+ 200205 F51 0.2+ 0.2- 200325 N50 (3.8- 1.3+) 200416 T08 0.1- 0.4- 200205 F51 0.2+ 0.4- 200325 N50 (4.6- 2.3+) 200420 T08 0.0 0.3- 200321 T05 0.2+ 0.3+ 200326 850 0.0 0.8+ 200420 T08 0.0 0.0 200321 T05 0.3+ 0.4- 200326 850 1.2- 0.5+ 200420 T08 0.8- 0.4+ 200321 T05 0.5- 0.1- 200326 850 0.4+ 0.3- 200420 T08 0.3+ 0.3- 200321 T05 1.5+ 0.6- 200326 F65 0.1- 0.2+ 200422 215 0.2+ 0.0 200322 F51 0.1+ 0.1- 200326 F65 0.1+ 0.1- 200422 215 0.5+ 0.1- 200322 F51 0.1- 0.0 200326 F65 0.5+ 0.5- 200422 215 0.6+ 0.3- 200322 F51 0.2+ 0.1- 200327 Q62 0.3- 0.2- 200425 349 0.1+ 0.2- 200322 F51 0.0 0.1- 200327 Q62 0.0 0.0 200425 349 0.0 0.2- 200323 I47 0.0 0.2+ 200327 Q62 0.5+ 0.2- 200427 D74 0.0 0.3+ 200323 I47 0.2- 0.3- 200327 Q62 0.8+ 0.3- 200427 D74 1.6+ 0.1- 200323 I47 0.4+ 0.2- 200327 Q62 0.8+ 0.4- 200428 T08 0.3- 0.3+ 200323 Q11 0.2+ 0.1+ 200327 Q62 0.1- 0.2+ 200428 T08 0.3+ 0.3- 200323 Q11 0.2- 0.1+ 200327 Q62 0.4+ 0.0 200428 T08 0.3+ 0.1+ 200323 Q11 0.1+ 0.3+ 200327 Q62 0.6+ 0.0 200428 T08 0.0 0.4- 200324 L01 0.1+ 0.7+ 200327 Q62 0.1- 0.1- 200428 D74 0.5+ 0.1+ 200324 L01 0.1- 0.6+ 200327 Q62 0.2+ 0.3- 200428 D74 0.3+ 0.4+ 200324 L01 0.8- 0.6+ 200327 Q62 0.0 0.4- 200428 D74 0.4+ 0.1+ 200324 L01 0.4- 0.3- 200328 I47 0.0 0.2+ 200324 L01 0.3- 0.4+ 200328 I47 0.3- 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 May 4