Nakano Note (Nakano wa Kangaeru noda) NK 5197 C/2016 J2 (Denneau)
The following improved orbital elements, by S. Nakano, are from 82 observations 2015 June 26 to 2016 June 5. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.84 arc second. The comet has passed 5.52 AU from Uranus on 2010 Sept. 27 and 3.49 AU from Jupiter on 2016 Aug. 3 UT. Note: 2015 observations were published on the recent MPCs. Epoch = 2016 Apr. 2.0 TT T = 2016 Apr. 11.97697 +/- 0.00026 (m.e.) TT Peri. = 318.48746 +/- 0.00019 Node = 186.18368 +/- 0.00008 (2000.0) Inc. = 130.34655 +/- 0.00010 q = 1.5187288 +/- 0.0000020 AU e = 1.0006598 +/- 0.0000086 1/a = -0.0004344 +/- 0.0000056 1/AU origin = -0.000027 (Q= 7) future = -0.000207 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 160506 E23 0.4+ 0.7- 160508 448 0.5- 0.2- 150626 Q55 0.6+ 0.0 160506 E23 0.7+ 0.5- 160508 926 0.7+ 0.6- 150626 Q55 0.8+ 0.1+ 160506 Q62 0.2+ 0.5- 160508 926 1.1+ 0.0 150626 Q55 0.5+ 0.4+ 160506 Q62 0.5+ 0.7- 160508 926 1.0+ 1.4- 150626 Q55 0.7+ 0.1+ 160506 Q62 0.2- 0.7- 160508 246 (3.2+ 0.4+) 150628 Q55 0.8+ 0.1+ 160506 Q62 0.4- 0.7- 160508 246 (0.2- 2.7+) 150628 Q55 0.4+ 0.1- 160506 E23 1.6- 0.8- 160508 246 (0.3- 2.8-) 150719 Q55 0.6+ 0.3+ 160506 E23 0.3+ 0.2- 160508 246 1.0- 0.6+ 150901 W84 0.6- 0.3- 160506 Q62 0.4+ 0.4- 160514 C51 0.0 2.1+ 150902 W84 0.5- 0.0 160506 Q62 0.6+ 0.7- 160514 C51 0.7- 2.2+ 150902 309 0.6- 0.4- 160506 Q62 0.1+ 0.2+ 160514 C51 0.0 1.7+ 150902 309 0.8- 0.6- 160506 Q62 0.2+ 0.3+ 160514 C51 0.1+ 0.0 150902 309 0.6- 0.4- 160506 Q62 0.3- 0.5+ 160514 C51 0.2- 0.7+ 150902 309 0.7- 0.3- 160506 Y00 1.1+ 1.0- 160523 Q62 1.3+ 1.0+ 151001 W84 1.6- 0.8+ 160506 Y00 0.1+ 0.3- 160523 Q62 0.9+ 1.3+ 151001 W84 1.4- 0.9+ 160506 Y00 1.1+ 0.4- 160523 Q62 0.7+ 1.8+ 151001 W84 1.3- 1.0+ 160506 Y00 0.8+ 0.2- 160526 H06 1.0+ 0.3+ 2016/ 160506 Y00 0.0 0.1+ 160526 H06 1.1+ 0.2+ 160418 Q55 (2.7+ 10.3-) 160507 H01 0.7- 0.3+ 160526 H06 1.0+ 0.0 160418 Q55 (2.6+ 10.1-) 160507 H01 0.9- 0.2+ 160528 349 (3.9+ 2.0-) 160418 Q55 (2.4+ 10.1-) 160507 H01 0.6- 0.2+ 160528 349 (3.3+ 1.5-) 160418 Q55 (2.1+ 10.1-) 160507 H01 0.7- 0.1+ 160528 G40 2.0+ 0.4+ 160506 T05 1.2+ 0.0 160507 568 0.8- 0.1+ 160528 G40 (2.6+ 0.4+) 160506 T05 0.4+ 0.4- 160507 568 0.8- 0.1+ 160531 Q62 2.1+ 0.2- 160506 T05 1.2+ 0.3- 160507 568 0.8- 0.2+ 160531 Q62 2.1+ 0.1- 160506 T05 1.3+ 1.5- 160508 448 0.5+ 0.9- 160531 Q62 2.1+ 0.1- 160506 474 0.4- 0.1+ 160508 H06 0.2+ 0.0 160605 474 1.5+ 0.8- 160506 474 0.0 0.0 160508 448 0.3+ 0.3+ 160605 474 1.7+ 1.1- 160506 474 0.2- 0.2- 160508 926 (2.9+ 0.9-) 160605 474 2.1+ 1.0- 160506 474 0.0 0.0 160508 H06 0.6- 0.1+ 160605 G40 1.7+ 1.2- 160506 474 0.2- 0.2- 160508 926 1.3+ 0.5+ 160605 G40 1.7+ 0.1- 160506 E23 0.8+ 0.1- 160508 926 1.2+ 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2024 Apr. 22