Nakano Note (Nakano wa Kangaeru noda) NK 4767 C/2012 T4 (McNaught)
The following improved orbital elements, by S. Nakano, are from 48 observations 2012 Apr. 21 to Dec. 10. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.58 arc second. The comet has passed 3.47 AU from Jupiter on 2013 Oct. 9 UT. Epoch = 2012 Sept.30.0 TT T = 2012 Oct. 10.93221 +/- 0.00050 (m.e.) TT Peri. = 219.91532 +/- 0.00026 Node = 99.36845 +/- 0.00012 (2000.0) Inc. = 24.08513 +/- 0.00006 q = 1.9559907 +/- 0.0000061 AU e = 0.9911984 +/- 0.0000182 1/a = +0.0044998 +/- 0.0000093 1/AU origin = +0.004204 (Q= 7) future = +0.004807 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2012/ 121015 H06 0.5- 0.3+ 121106 H06 0.9+ 0.2- 120421 F51 0.5+ 0.5- 121015 H06 0.8- 1.1+ 121106 H06 0.6+ 0.2+ 120421 F51 0.5+ 0.5- 121015 E12 0.0 0.8- 121108 H06 0.0 0.2+ 120810 309 0.5- 0.4+ 121015 E12 0.8+ 0.7- 121108 H06 0.5- 1.0+ 120810 309 0.5- 0.4+ 121015 E12 0.7+ 0.3+ 121201 H06 1.9- 0.9- 120810 309 0.5- 0.4+ 121016 807 0.1+ 0.2+ 121201 H06 1.2- 0.4- 120810 309 0.5- 0.4+ 121016 807 0.2- 0.3- 121203 E12 0.7- 0.9- 121013 E12 0.4+ 0.1+ 121016 807 0.3- 0.2- 121204 E07 (2.2- 1.2-) 121013 E12 0.1- 0.5- 121016 807 0.2- 0.0 121204 E07 0.1- 0.1- 121013 E12 0.7- 0.6+ 121016 807 0.5- 0.4+ 121209 H06 0.3+ 0.7+ 121013 E12 0.8+ 0.6- 121016 E12 0.0 0.1+ 121209 H06 0.2+ 0.7+ 121013 E12 0.6+ 0.2- 121017 E07 0.5- 0.2- 121209 H06 0.3- 0.5+ 121013 E12 0.2+ 0.3- 121017 E07 0.5+ 0.5+ 121210 474 0.4+ 0.8- 121015 807 0.6- 0.1+ 121018 E12 0.2+ 0.3- 121210 474 0.1- 0.3+ 121015 807 0.2- 0.5- 121018 E12 1.0+ 0.0 121210 474 0.1- 0.3- 121015 807 0.3+ 0.5- 121024 E10 0.3+ 0.3+ 121210 474 1.2+ 0.3+ 121015 H06 1.9+ 0.0 121024 E10 0.4- 1.0- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2022 July 9