Nakano Note (Nakano wa Kangaeru noda) NK 3499 P/2015 V4 (PANSTARRS)
The following improved orbital elements, by T. Kobayashi, are from 77 observations 2015 Nov. 3 to 2017 Mar. 26. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.40 arc second. The comet has passed 3.99 AU from Jupiter on 2017 July 17 UT. See the previous orbits in NK 3078, NK 3154, HICQ 2016 and NK 3323 (= HICQ 2017). Epoch = 2016 Sept. 9.0 TT T = 2016 Aug. 28.24581 +/- 0.01011 (m.e.) TT Peri. = 306.93291 +/- 0.00099 Node = 179.89571 +/- 0.00006 (2000.0) Inc. = 60.75161 +/- 0.00003 q = 5.4594949 +/- 0.0000097 AU e = 0.7056252 +/- 0.0000085 a = 18.5460665 +/- 0.0005354 AU n' = 0.01234032 +/- 0.00000053 P = 79.869 +/- 0.0034593 years (+/- 1.26 days) The predicted orbit for the 2095 return by S. Nakano is as follows: T = 2095 Nov. 13.38540 TT Epoch = 2095 Nov. 14.0 TT Peri. = 306.72755 e = 0.7080687 Node = 179.80230 (2000.0) a = 18.7031326 AU Inc. = 60.71792 n'= 0.01218520 q = 5.4600292 AU P = 80.886 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 151204 Q62 0.0 0.0 160308 474 0.9- 0.3+ 151103 F51 0.8+ 0.2+ 151204 Q62 0.5- 0.4+ 160308 474 0.3+ 0.2- 151103 F51 0.0 0.0 151210 474 0.5+ 0.5+ 160413 474 0.3+ 0.1- 151103 F51 0.3+ 0.1+ 151210 474 0.0 0.0 160413 474 0.1- 0.2- 151105 K91 0.1+ 0.1- 151210 474 0.4- 0.1+ 160413 474 0.1- 0.4- 151105 K91 0.5+ 0.0 151215 W96 0.3+ 1.1+ 160413 474 0.1+ 0.2+ 151105 K91 0.2+ 0.0 151215 W96 0.1- 0.3- 160503 474 0.9+ 0.7- 151105 W85 0.3+ 0.1- 151215 W96 0.1- 0.1- 160503 474 0.4+ 0.7- 151105 W85 0.5+ 0.0 151231 Q62 0.2- 0.7- 160503 474 0.3- 1.4- 151105 W85 0.1+ 0.2- 151231 Q62 0.6- 0.1- 160503 474 0.0 0.5- 151105 W85 0.3+ 0.4- 151231 Q62 0.2- 0.4- 161103 Q62 0.3+ 0.4+ 151105 807 0.0 0.1- 2016/ 161103 Q62 0.4+ 0.4+ 151105 807 0.2+ 0.3+ 160104 474 0.1- 0.3+ 161103 Q62 0.6+ 0.3+ 151105 807 0.3+ 0.7- 160104 474 0.1+ 0.3+ 2017/ 151106 568 0.1+ 0.2+ 160104 474 0.0 0.0 170303 G45 0.0 0.6+ 151106 568 0.0 0.2+ 160104 474 0.1- 0.1+ 170303 G45 0.1- 0.1+ 151106 568 0.1+ 0.1+ 160112 E07 0.2- 0.1+ 170303 G45 0.9- 0.2+ 151107 Q62 0.8- 0.4+ 160112 E07 0.1- 0.1+ 170303 G45 0.3- 1.2+ 151107 Q62 0.5- 0.0 160202 474 0.2- 0.2+ 170303 G45 0.1+ 0.4+ 151107 Q62 0.5- 0.3- 160202 474 0.4- 0.1+ 170307 F51 0.1+ 0.2- 151108 W96 0.2+ 0.2- 160202 474 0.2- 0.1+ 170307 F51 0.1+ 0.2- 151108 W96 0.2- 0.3+ 160202 474 0.2- 0.2+ 170307 F51 0.1+ 0.1- 151108 W96 0.7+ 0.4+ 160209 E07 0.3- 0.0 170307 F51 0.1- 0.2- 151108 W96 0.1- 0.4- 160209 E07 0.3- 0.2+ 170316 215 (2.4- 0.3-) 151113 W96 0.0 0.0 160210 E07 0.0 0.3+ 170326 215 (4.1- 0.4-) 151113 W96 0.3- 0.0 160210 E07 0.3- 0.4+ 170326 215 0.3+ 1.7- 151113 W96 0.4+ 0.8- 160308 474 0.6- 0.5+ 170326 215 (1.1+ 2.8-) 151204 Q62 0.5+ 0.0 160308 474 0.1+ 0.6+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Nov. 26