Nakano Note (Nakano wa Kangaeru noda) NK 3414 P/2011 U1 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 58 observations 2004 to 2012. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.30 arc second. The comet has passed 0.81 AU from Jupiter on 2010 Mar. 13 and will pass 0.63 AU from Jupiter on 2033 Jan. 15 UT. See the previous orbit in NK 2184. Epoch = 2012 June 2.0 TT T = 2012 June 20.67636 +/- 0.00179 (m.e.) TT Peri. = 353.14990 +/- 0.00041 Node = 135.00654 +/- 0.00011 (2000.0) Inc. = 15.24328 +/- 0.00003 q = 2.3561559 +/- 0.0000144 AU e = 0.4176482 +/- 0.0000036 a = 4.0459318 +/- 0.0000086 AU n' = 0.12110895 +/- 0.00000039 P = 8.138 +/- 0.0000261 years T = 2003 Dec. 21.14837 TT Epoch = 2003 Dec. 27.0 TT Peri. = 348.52929 e = 0.3932954 Node = 137.10161 (2000.0) a = 4.2002820 AU Inc. = 15.70792 n'= 0.11449497 q = 2.5483304 AU P = 8.608 years The predicted orbit for the 2020 return is as follows: T = 2020 Aug. 19.36444 TT Epoch = 2020 Aug. 19.0 TT Peri. = 353.25688 e = 0.4164350 Node = 134.94754 (2000.0) a = 4.0583106 AU Inc. = 15.22935 n'= 0.12055526 q = 2.3682878 AU P = 8.176 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2004/ 111026 926 0.4- 0.2- 111124 568 0.1- 0.1- 040214 608 0.4- 1.1+ 111026 926 0.0 0.2- 111203 J47 0.6- 0.2+ 040214 608 0.3+ 0.7- 111026 926 0.1- 0.1- 111203 J47 0.6- 0.0 040214 608 0.1+ 0.1- 111026 926 0.1+ 0.2- 111203 J47 0.2- 0.0 040219 608 (0.1- 2.8+) 111026 926 0.6+ 0.8- 111218 J24 0.3+ 0.3- 2011/ 111028 C32 0.0 0.3- 111218 J24 0.6+ 0.1+ 111023 F51 0.0 0.2+ 111028 C32 0.5+ 0.2- 111218 J24 0.2- 1.0+ 111023 F51 0.1+ 0.1- 111028 C32 0.5- 0.3- 111221 130 0.6+ 0.2+ 111023 F51 0.1+ 0.1+ 111030 H06 0.2+ 0.1- 111221 130 1.0+ 0.1+ 111023 F51 0.0 0.0 111030 H06 0.1+ 0.1- 111229 C32 0.1+ 0.3- 111024 291 0.1- 0.2+ 111030 H06 0.3- 0.5- 111229 C32 0.1- 0.2+ 111024 291 0.5- 0.0 111104 C32 0.2- 0.2+ 111229 C32 0.3+ 0.4- 111024 291 0.3- 0.6+ 111104 C32 0.1- 0.4+ 2012/ 111024 F65 0.0 0.1+ 111117 204 0.2- 0.3- 120109 204 0.5- 0.6- 111024 F65 0.1- 0.2+ 111117 204 0.1- 0.0 120109 204 0.3+ 0.4+ 111024 F65 0.0 0.1+ 111121 215 0.2+ 0.3- 120125 372 0.3+ 0.1+ 111024 F65 0.1- 0.2+ 111121 215 0.0 0.0 120125 372 0.1+ 0.4+ 111024 F65 0.1- 0.3+ 111121 215 0.2+ 0.0 120125 372 0.2+ 0.1- 111024 568 0.0 0.1+ 111123 H06 0.0 1.0- 120126 215 (2.5+ 0.3+) 111024 568 0.0 0.1+ 111123 H06 0.5- 0.4- 120126 215 (2.9+ 0.7+) 111024 568 0.0 0.1+ 111124 568 0.1- 0.1- 111026 926 0.3+ 0.2- 111124 568 0.1- 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Sept. 16