Nakano Note (Nakano wa Kangaeru noda) NK 4356 C/2020 P1 (NEOWISE)
The following improved orbital elements, by S. Nakano, are from 121 observations 2020 Aug. 2 to Dec. 9. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.86 arc second. The comet has passed 4.74 AU from Saturn on 2017 Dec. 20 and 2.48 AU from Jupiter on 2019 Oct. 22 UT. See the previous orbits in CBET 4825 and NK 4245. Epoch = 2020 Nov. 7.0 TT T = 2020 Oct. 20.17901 +/- 0.00009 (m.e.) TT Peri. = 8.89599 +/- 0.00018 Node = 53.53836 +/- 0.00022 (2000.0) Inc. = 45.05403 +/- 0.00029 q = 0.3421782 +/- 0.0000030 AU e = 1.0003046 +/- 0.0000073 1/a = -0.0008902 +/- 0.0000213 1/AU origin = +0.000172 (Q= 6) future = -0.001037 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2020/ 200806 X74 1.5+ 1.7- 200920 C53 (2.6+ 1.3-) 200802 C51 1.6+ 1.6- 200806 X74 (2.6+ 2.2-) 200920 C53 (3.5+ 2.0-) 200802 C51 1.0+ 0.9- 200807 G39 1.9+ 0.0 200920 C53 (2.9+ 1.1-) 200802 C51 1.5+ 0.2+ 200807 G39 1.6- 0.7+ 200920 C53 (3.1+ 1.1-) 200802 C51 2.2+ 2.0+ 200807 G39 0.3- 1.6+ 200920 C53 (3.6+ 3.7-) 200802 C51 0.7+ 0.7- 200807 W88 0.7- 0.0 200920 C53 (3.8+ 1.9-) 200803 C51 1.4+ 0.2- 200808 W88 0.2- 0.3- 200920 C53 (1.3+ 4.1-) 200803 C51 0.0 0.7- 200808 W88 0.1- 0.3- 200928 Q38 0.7- 1.2+ 200803 C51 1.0+ 0.4- 200808 W88 0.8+ 0.9- 200928 Q38 0.4- 0.2+ 200803 C51 0.8+ 0.8- 200808 W88 0.1+ 0.4- 200928 Q38 1.9+ 0.5- 200804 Q62 0.3+ 0.2+ 200808 W88 0.1- 0.1+ 200928 Q38 1.1- 1.6+ 200804 Q62 0.9- 1.4+ 200810 Q38 1.7+ 1.4- 200928 Q38 0.9+ 1.8- 200804 Q62 1.0+ 0.2+ 200810 Q38 1.3- 0.3+ 201001 C53 1.0+ 1.1- 200804 Q62 0.2- 0.2+ 200810 Q38 1.1+ 2.2- 201001 C53 0.9+ 1.4- 200804 Y00 (2.9+ 1.6-) 200816 Q38 1.7+ 0.8- 201001 C53 0.9+ 0.1- 200804 Y00 1.4+ 0.1- 200816 Q38 0.6+ 0.5- 201001 C53 0.9+ 0.4- 200804 Y00 (2.4+ 0.6-) 200816 Q38 0.7+ 0.8- 201001 C53 0.9+ 0.6- 200804 Y00 (2.8+ 1.6-) 200826 Q62 0.4- 0.5- 201001 C53 0.7+ 1.0- 200804 Y00 (2.6+ 0.2-) 200826 Q62 0.3- 0.7- 201001 C53 1.1+ 1.0- 200805 W88 0.3- 0.1- 200826 Q62 0.0 0.8- 201001 C53 1.4+ 0.1- 200805 W88 0.3- 0.2+ 200828 Q62 0.1+ 1.0- 201001 C53 1.5+ 0.0 200805 W88 0.2+ 0.3+ 200828 Q62 0.1+ 0.7- 201001 C53 1.0+ 0.7- 200805 W88 0.5+ 0.1- 200828 Q62 0.1+ 0.4- 201001 C53 1.3+ 0.7- 200805 W88 0.8+ 0.5- 200828 Q62 0.1+ 0.4- 201001 C53 1.0+ 0.6- 200805 W88 0.5+ 0.6- 200906 Q62 0.8- 0.3- 201001 C53 1.2+ 0.4- 200805 Q63 0.7- 0.4+ 200906 Q62 0.8- 0.1- 201001 C53 1.3+ 0.5- 200805 Q63 0.7- 0.4+ 200906 Q62 0.7- 0.2- 201003 E94 1.6- 2.1+ 200805 Q62 0.1+ 0.4- 200909 Q38 0.1- 0.7+ 201003 E94 1.4- 1.5+ 200805 Q63 0.7- 0.5+ 200909 Q38 0.3+ 0.7+ 201003 E94 0.6- 1.9+ 200805 Q62 0.0 0.2- 200909 Q38 0.6+ 0.4- 201005 W88 (2.4- 0.5-) 200805 Q62 0.2+ 0.2- 200909 Q38 1.5+ 0.7- 201005 W88 (2.6- 1.1-) 200805 Q62 0.7- 0.4- 200912 W88 1.1- 0.7+ 201005 W88 1.7- 0.5- 200805 Q62 0.3- 0.2+ 200912 W88 0.9- 0.1+ 201005 W88 1.8- 0.1- 200805 Q62 0.9- 0.3+ 200912 W88 0.5- 0.3- 201005 W88 1.2- 0.4+ 200805 E23 1.2+ 0.3- 200914 Q38 1.0- 0.0 201005 W88 1.9- 0.2+ 200805 E23 1.4+ 0.0 200914 Q38 0.6- 0.6- 201005 W88 1.2- 0.3+ 200805 E23 1.4+ 0.3- 200914 Q38 1.0+ 1.6+ 201024 349 (4.9- 2.0-) 200805 Q62 0.0 0.3- 200914 Q38 0.6+ 0.5- 201024 349 (5.8- 0.9-) 200805 Q62 0.6+ 0.5- 200914 Q38 0.2+ 1.4+ 201028 A71 (8.9- 1.6+) 200805 Q62 0.2+ 0.3- 200915 Q62 1.1- 0.7+ 201028 A71(10.7- 2.8+) 200805 Q62 0.5+ 1.4- 200915 Q62 1.1- 0.9+ 201028 A71 (9.5- 3.0+) 200805 Q62 0.4+ 0.7- 200915 Q62 1.0- 0.8+ 201111 D95 (5.6- 8.1+) 200805 Q62 0.1+ 0.2- 200915 Q62 1.3- 0.6+ 201111 D95 (7.2- 8.9+) 200805 Q62 0.1+ 0.0 200920 Q38 (2.4- 0.3+) 201111 D95 (5.3- 6.2+) 200805 Q62 0.1+ 0.1- 200920 Q38 (0.3- 2.6+) 201129 C10 (5.6- 16.4+) 200805 X31 0.1- 0.3- 200920 Q38 (1.1- 2.9+) 201129 A77 (4.5- 12.8+) 200805 X31 0.6- 0.2+ 200920 Q38 0.1- 0.1- 201129 A77 (3.7+ 5.3-) 200805 X31 0.8- 0.5+ 200920 Q38 (1.2- 2.3+) 201129 C10(10.9- 20.8+) 200805 X31 0.2- 0.2+ 200920 C53 (2.5+ 2.8-) 201209 A77 0.0 0.8+ 200805 X31 0.2- 0.2+ 200920 C53 (2.5+ 3.3-) 201209 A77 0.9+ 0.4- 200805 X31 0.0 0.0 200920 C53 (3.3+ 3.4-) 201209 A77 0.9- 0.7- 200805 X31 0.5- 0.2- 200920 C53 (3.3+ 2.9-) 200806 X74 0.9+ 0.0 200920 C53 (3.4+ 2.2-) ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2021 Jan. 8