Nakano Note (Nakano wa Kangaeru noda) NK 4166 11P/Tempel-Swift-LINEAR
The following improved orbital elements, by S. Nakano, are from 95 observations 2001 to 2020, including planetary perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas, Vesta, and non-gravitational effect of style II. The mean residual is +/- 0.61 arc second. Residuals of re-observations on 2020 were -10" for Right Ascension and -2" for Declination from the prediction in NK 3431 (= HICQ 2020) with the delta-T correction = +0.004 day. The comet has passed 0.60 AU and will pass 0.52 AU from Jupiter on 2018 Sept. 14 and 2030 July 22 UT, respectively. See the previous orbits in NK 396, NK 686, MPC 44184 (= IAUC 7779), NK 1197, NK 2163, NK 2776 and NK 3431. Epoch = 2020 Nov. 7.0 TT T = 2020 Nov. 26.26234 +/- 0.00041 (m.e.) TT Peri. = 167.94725 +/- 0.00011 Node = 238.91622 +/- 0.00006 (2000.0) Inc. = 14.42096 +/- 0.00003 q = 1.3887504 +/- 0.0000018 AU e = 0.5769663 +/- 0.0000002 a = 3.2828358 +/- 0.0000046 AU n' = 0.16570298 +/- 0.00000035 P = 5.948 +/- 0.0000125 years A1 = +0.030 +/- 0.018 A2 = -0.00205 +/- 0.00040 T = 2001 Dec. 30.75565 TT Epoch = 2002 Jan. 6.0 TT Peri. = 163.63426 e = 0.5391278 Node = 240.71006 (2000.0) a = 3.4371118 AU Inc. = 13.46075 n'= 0.15467267 q = 1.5840693 AU P = 6.372 years T = 2008 May 4.65823 TT Epoch = 2008 May 14.0 TT Peri. = 163.89934 e = 0.5449573 Node = 240.52512 (2000.0) a = 3.4141336 AU Inc. = 13.55346 n'= 0.15623679 q = 1.5535766 AU P = 6.308 years T = 2014 Aug. 26.92519 TT Epoch = 2014 Aug. 11.0 TT Peri. = 164.06647 e = 0.5459221 Node = 240.43624 (2000.0) a = 3.4103930 AU Inc. = 13.57590 n'= 0.15649391 q = 1.5485842 AU P = 6.298 years The predicted orbit for the 2026 return is as follows: T = 2026 Nov. 9.99508 TT Epoch = 2026 Nov. 16.0 TT Peri. = 168.07983 e = 0.5772561 Node = 238.85076 (2000.0) a = 3.2820331 AU Inc. = 14.43094 n'= 0.16576378 q = 1.3874593 AU P = 5.946 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2001/ 011219 734 (2.4+ 2.2+) 141024 G45 2.0+ 1.5- 010801 644 0.6- 0.4+ 011226 608 1.1- 0.5+ 141024 G45 0.2- 0.8- 010910 704 0.1- 0.7- 011226 608 0.5+ 0.2+ 141024 G45 0.4- 0.7- 010910 704 0.7+ 0.6- 2002/ 141024 G45 0.7- 0.4- 010910 704 0.2- 0.8+ 020104 349 1.2- 1.2+ 141024 G45 0.1+ 0.9- 010910 704 0.7- 0.8- 020104 349 (1.3+ 2.5+) 141030 703 1.3- 1.1- 010930 644 0.2- 0.2- 020105 360 0.3- 0.0 141030 703 0.1- 0.0 010930 644 0.1- 0.1+ 020105 360 0.7- 0.1- 141030 703 0.9- 0.7+ 011017 704 0.6+ 0.0 020105 360 0.3- 0.2- 141030 703 0.8+ 0.8+ 011017 704 0.8+ 0.5- 020111 360 0.2- 0.3- 141122 G45 0.2- 0.8+ 011017 704 0.5- 1.2+ 020111 360 0.9- 0.1- 141122 G45 0.4- 0.0 011017 704 0.3- 0.7- 020111 360 0.2- 0.5- 141122 G45 1.3+ 0.1- 011017 704 0.1+ 0.5+ 020207 360 0.5- 0.7- 141122 G45 0.5+ 1.1+ 011207 704 0.4- 1.3- 020207 360 0.8- 1.0- 141123 F51 0.0 0.1+ 011207 704 0.1- 1.6- 020207 360 0.4- 0.1- 141123 F51 0.1- 0.1- 011207 704 0.5- 1.7- 2014/ 141123 F51 0.1- 0.1- 011207 704 0.5- 0.8- 140727 Q62 1.2- 0.8- 141123 F51 0.0 0.1- 011208 704 0.4+ 0.3+ 140727 Q62 1.3- 0.5- 141125 F51 0.0 0.1- 011208 704 0.4+ 0.0 140727 Q62 0.5- 0.2- 141125 F51 0.2+ 0.1- 011208 704 0.6+ 1.4+ 140901 C10 0.5+ 0.8+ 141125 F51 0.1+ 0.0 011208 704 0.4+ 0.6+ 140901 C10 0.5+ 1.4+ 141126 W96 0.0 0.1- 011211 704 0.2- 0.4+ 140901 C10 0.1- 0.1- 141126 W96 0.8+ 0.5- 011211 704 0.5- 1.0+ 140903 C10 1.7- 0.3- 141126 W96 0.8+ 0.3- 011211 704 0.9+ 0.3+ 140903 C10 0.5+ 1.7- 2015/ 011211 704 0.7+ 0.6+ 140903 C10 (1.5- 2.1-) 150119 G45 (0.3- 3.6+) 011211 704 0.3+ 0.4+ 141018 215 0.6+ 0.0 150119 G45 0.5+ 1.3+ 011217 704 1.5+ 1.0+ 141018 215 0.3+ 0.2+ 150119 G45 0.6- 1.7+ 011217 704 1.4+ 0.8+ 141018 215 0.6- 0.0 150119 G45 0.1- 0.6+ 011217 704 (5.1+ 2.4+) 141022 C51 0.4- 0.7- 150119 G45 0.4- 0.8+ 011217 704 1.9+ 0.4+ 141022 C51 (1.3+ 2.3-) 2020/ 011219 704 (0.6- 2.4+) 141022 C51 1.0+ 1.0- 200519 C35(27.2+ 45.8+) 011219 704 0.2- 1.1+ 141022 C51 0.0 0.8+ 200519 C35(25.9+ 45.3+) 011219 704 0.8- 1.0+ 141022 C51 (2.3+ 0.8-) 200519 C35(23.3+ 42.6+) 011219 734 (2.7+ 2.1-) 141022 C51 0.7- 0.0 200725 L27 0.4- 0.9+ 011219 734 (1.5+ 2.6-) 141022 C51 0.7+ 1.1+ 200725 L27 0.0 0.9+ 011219 704 0.3- 1.1+ 141023 C51 1.5- 0.6+ 200725 L27 0.7+ 1.0+ 011219 734 0.1+ 0.8+ 141023 C51 0.3+ 1.3- 200727 L27 1.1- 1.3- 011219 734 (3.1+ 0.4+) 141023 C51 0.5- 0.4- 200727 L27 0.7+ 0.6- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Aug. 10