Nakano Note (Nakano wa Kangaeru noda) NK 1986 C/2009 T1 (McNaught)
The following improved orbital elements, by S. Nakano, are from 101 observations 2009 Oct. 9 to 2010 Oct. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.64 arc second. See the previous orbit in NK 1878. Epoch = 2009 Oct. 16.0 TT T = 2009 Oct. 8.20354 +/- 0.01463 (m.e.) TT Peri. = 282.52417 +/- 0.00132 Node = 54.40049 +/- 0.00017 (2000.0) Inc. = 89.89655 +/- 0.00006 q = 6.2204066 +/- 0.0000209 AU e = 0.9984275 +/- 0.0000239 1/a = +0.0002528 +/- 0.0000038 1/AU origin = +0.000929 (Q= 7) future = +0.000992 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2009/ 091105 D90 0.2- 0.2+ 100114 C51 (1.4+ 2.4-) 091009 E12 0.1- 0.5- 091108 415 0.6+ 0.1- 100114 C51 0.2- 1.5- 091009 E12 0.6+ 0.2- 091108 415 0.6- 1.0- 100114 C51 0.5- 0.7+ 091009 E12 0.7+ 0.4+ 091109 423 0.1- 0.1- 100114 C51 0.5+ 0.2- 091009 E12 0.2+ 0.2- 091109 423 0.2+ 0.5+ 100114 C51 (2.8+ 3.5+) 091010 474 0.3+ 0.0 091110 423 0.5- 0.5+ 100114 C51 0.1+ 1.4- 091010 D90 0.3+ 0.7+ 091110 423 0.1+ 0.2+ 100114 C51 0.8+ 0.5- 091010 D25 0.4+ 0.0 091113 D25 0.7+ 0.8+ 100114 C51 0.7+ 1.0- 091010 474 0.3+ 0.1+ 091113 D25 0.3- 0.4+ 100115 C51 0.1- 1.0- 091010 474 0.1+ 0.1- 091113 D25 0.3+ 0.7+ 100115 C51 1.9+ 1.7- 091010 474 0.1+ 0.2- 091118 E12 0.1- 0.4- 100115 C51 1.0+ 1.3+ 091010 D25 0.1+ 0.1- 091125 D25 0.2- 0.6+ 100115 C51 1.2- 0.3+ 091010 D25 0.9+ 0.1+ 091125 D25 0.3- 0.6+ 100115 C51 1.1+ 1.5- 091010 D90 0.6+ 0.3- 091127 415 1.2- 1.0- 100115 C51 0.5+ 1.0- 091010 E12 0.6+ 0.1+ 091127 415 0.5- 0.6+ 100115 C51 (1.7- 2.1+) 091010 E12 0.2+ 0.1- 091206 415 0.4- 0.6+ 100115 C51 (0.2- 3.6+) 091010 E12 0.4+ 0.3- 091206 415 0.5- 0.3+ 100115 C51 (3.3- 2.9+) 091010 D25 1.9- 0.7+ 091206 415 0.1+ 0.4+ 100115 C51 (1.6- 2.8-) 091010 D25 (6.9- 3.7-) 091206 415 0.0 0.8+ 100115 C51 0.9+ 0.3- 091011 I77 1.1- 1.5- 091212 423 0.7- 0.2- 100115 C51 0.2- 1.4- 091011 I77 0.1+ 0.5+ 091212 423 0.2- 0.4+ 100115 C51 1.6+ 0.6- 091011 I77 0.2+ 0.4- 091215 415 0.8- 0.1+ 100115 C51 (0.5+ 3.1-) 091011 474 0.2+ 0.0 091215 415 0.6- 0.5+ 100115 C51 0.5- 1.9+ 091011 474 0.2+ 0.0 091216 423 0.1- 0.7- 100115 C51 1.6- 0.0 091011 474 0.1+ 0.0 091216 423 0.2- 0.2+ 100116 C51 0.0 0.8- 091011 423 0.3- 0.1- 2010/ 100116 C51 0.2+ 0.2- 091011 423 0.1+ 0.2- 100104 415 0.8- 1.4+ 100116 C51 0.7+ 1.0- 091014 423 0.1+ 0.4+ 100104 415 0.8- 0.2+ 100116 C51 0.6- 1.6+ 091014 423 0.4+ 0.9+ 100105 D90 0.8- 0.6+ 100119 423 1.3- 0.1+ 091016 423 0.0 0.1+ 100105 D90 0.2- 0.1+ 100119 423 0.5+ 0.5+ 091016 423 0.0 0.2+ 100108 415 0.5- 0.3+ 100120 423 0.4- 0.0 091016 D90 0.8- 0.5- 100108 415 0.3- 0.8+ 100120 423 0.4+ 0.8+ 091016 D90 0.1- 0.1- 100108 423 0.1- 0.6+ 100911 H06 1.0+ 0.1- 091018 423 0.4+ 0.1- 100109 423 0.4- 0.1+ 100911 H06 0.5+ 0.4- 091018 423 0.2- 0.3- 100109 423 0.5+ 0.8- 100911 H06 0.0 0.1+ 091105 D90 0.4+ 0.2- 100114 C51 0.7+ 0.3- 101002 H36 0.5- 1.1+ 091105 D90 0.0 0.0 100114 C51 0.3- 0.1+ 101002 H36 0.6- 0.4- ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2010 Oct. 11