Nakano Note (Nakano wa Kangaeru noda) NK 3446 C/2015 H2 (PANSTARRS)
The following improved orbital elements, S. Nakano, are from 131 observations 2015 Apr. 20 to 2017 Sept. 26. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.53 arc second. Residuals for recent observations were -4" for Right Ascension and -2" for Declination from an orbit in NK 3264 (= HICQ 2017). See the previous orbits in NK 3084, NK 3175 and NK 3264. Epoch = 2016 Sept. 9.0 TT T = 2016 Sept.13.25407 +/- 0.00097 (m.e.) TT Peri. = 287.90568 +/- 0.00010 Node = 350.69202 +/- 0.00003 (2000.0) Inc. = 33.70504 +/- 0.00002 q = 4.9671509 +/- 0.0000084 AU e = 1.0032153 +/- 0.0000126 1/a = -0.0006473 +/- 0.0000025 1/AU origin = +0.000036 (Q= 9) future = -0.000515 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 150719 474 0.3- 0.3+ 161103 Q62 0.7+ 0.6- 150420 W98 0.7- 0.6+ 150719 Q62 0.2+ 0.8+ 2017/ 150420 W98 1.3- 0.6+ 150719 Q62 0.1+ 0.9+ 170620 Q68 0.3- 0.1+ 150424 F51 0.4+ 0.0 150825 474 0.3- 0.2+ 170620 Q68 0.1+ 0.3+ 150424 F51 0.1+ 0.0 150825 474 0.4- 0.3+ 170630 Q68 0.0 0.0 150424 F51 0.4+ 0.0 150825 474 0.6- 0.1+ 170630 Q68 0.2+ 0.3+ 150424 F51 0.2+ 0.1- 2016/ 170701 Q68 0.1- 0.1+ 150425 807 0.2- 0.5+ 160208 474 0.1- 0.1+ 170701 Q68 0.0 0.2+ 150425 807 0.2+ 0.6+ 160208 474 0.1+ 0.5- 170702 Q68 0.0 0.6+ 150425 807 0.1- 0.3+ 160208 474 0.1+ 0.1- 170702 Q68 0.2+ 0.1- 150425 W96 0.5+ 1.3+ 160208 474 1.0- 0.1- 170707 Q68 0.1+ 0.5+ 150425 W96 0.1+ 1.0+ 160208 474 0.9- 0.3- 170707 Q68 0.8+ 0.5+ 150425 W96 0.0 0.1+ 160208 474 0.3- 0.6- 170715 Q68 0.3- 0.2+ 150425 W96 0.1- 0.4- 160313 474 0.2+ 0.6- 170715 Q68 0.2- 0.1+ 150426 W96 0.4+ 0.6- 160313 474 0.2+ 0.7- 170717 Q68 0.2+ 0.0 150426 W96 0.1- 0.8+ 160313 474 0.2+ 0.8- 170717 Q68 0.2- 0.3+ 150426 W96 0.2- 1.2+ 160412 W96 0.1+ 0.3- 170720 Q68 0.1+ 0.2+ 150427 Y00 0.0 0.6+ 160412 W96 0.6+ 0.6- 170720 Q68 0.0 0.4+ 150427 Y00 0.2- 0.5+ 160604 474 0.2+ 0.6- 170801 T08 0.8- 0.3+ 150427 Y00 0.2+ 0.0 160604 474 0.2+ 0.5- 170801 T08 0.3- 0.2+ 150427 W96 0.6+ 0.1+ 160604 474 0.3+ 0.6- 170801 T08 0.1+ 0.0 150427 W96 0.2+ 0.1- 160604 474 0.3+ 0.5- 170801 T08 0.1- 0.6- 150427 W96 0.5+ 0.8+ 160607 474 0.0 1.1- 170801 T08 1.7- 0.0 150427 568 0.0 0.1- 160607 474 0.1+ 0.5- 170805 T08 0.9- 0.6- 150427 568 0.0 0.2- 160607 474 0.2+ 0.9- 170805 T08 0.8+ 0.9+ 150427 568 0.2+ 0.2- 160612 W88 0.2+ 0.6- 170805 T08 0.2+ 1.3- 150427 Q62 0.4+ 0.5- 160612 W88 0.5+ 1.0- 170805 T08 0.4+ 0.5+ 150427 Q62 0.6+ 0.5- 160702 467 0.8+ 0.7- 170805 E94 0.0 0.3- 150427 Q62 0.6+ 0.1- 160702 467 0.0 1.3- 170805 E94 0.5- 0.5+ 150430 W96 0.0 0.3+ 160702 467 0.4- 1.7- 170805 E94 0.4- 0.3+ 150430 W96 0.4+ 0.3- 160712 W96 0.2+ 0.6- 170805 E94 1.0- 0.4+ 150511 F51 0.1+ 0.0 160712 W96 (5.6- 3.5+) 170814 T08 0.0 1.2- 150511 F51 0.3- 0.3+ 160821 W88 0.4- 0.4- 170814 T08 0.3+ 1.0+ 150511 F51 0.2- 0.0 160821 W88 0.1- 0.7- 170814 T08 0.2- 1.7- 150515 W96 0.2+ 0.2+ 160821 W88 0.4- 0.6- 170814 T08 0.1- 0.0 150515 W96 0.3+ 0.6- 160826 Q62 0.6- 1.0- 170816 T05 0.4- 1.3- 150515 474 0.3+ 0.1+ 160827 Q62 0.4+ 0.6- 170816 T05 0.4+ 1.0- 150515 474 0.2+ 0.4+ 160901 I40 0.2+ 0.6- 170816 T05 0.8- 0.7+ 150515 474 0.1+ 0.4+ 160901 I40 0.3- 0.5- 170816 T05 0.2+ 0.4+ 150517 Q62 0.8+ 0.9+ 160901 I40 (2.3+ 1.6+) 170908 Q68 0.3+ 0.4+ 150517 Q62 0.9+ 0.9+ 160908 I40 0.1+ 0.6- 170908 Q68 0.2+ 0.5+ 150517 Q62 0.8+ 1.0+ 160908 I40 0.3+ 0.7- 170908 Q68 0.6- 0.2+ 150605 E07 0.2- 0.4+ 160908 I40 0.2+ 0.8- 170926 F51 0.4- 0.3+ 150605 E07 0.1+ 0.5+ 160908 I40 0.1+ 0.6- 170926 F51 0.5- 0.5+ 150719 474 0.3- 0.3+ 161103 Q62 0.3+ 0.6- 150719 474 0.0 0.3+ 161103 Q62 0.5+ 0.5- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2017 Oct. 5