Nakano Note (Nakano wa Kangaeru noda) NK 2036 C/2010 D4 (WISE)

The following improved orbital elements, by S. Nakano, are from 100 observations 2008 June 6 to 2011 Jan. 15. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.56 arc second. The comet has passed 2.72 AU from Jupiter on 2007 Oct. 4 UT. See an orbit in NK 2001 (= HICQ 2010/2011). Epoch = 2009 Mar. 30.0 TT T = 2009 Mar. 30.46775 +/- 0.00975 (m.e.) TT Peri. = 44.45389 +/- 0.00066 Node = 266.76776 +/- 0.00009 (2000.0) Inc. = 105.65059 +/- 0.00003 q = 7.1479467 +/- 0.0000289 AU e = 0.8888210 +/- 0.0000207 1/a = +0.0155540 +/- 0.0000029 1/AU a = 64.29 AU P = 515.5 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2008/ 100309 926 0.1- 0.0 100413 850 0.6- 0.5- 080606 G96 0.0 0.1- 100309 926 0.0 0.0 100418 215 0.7+ 0.8+ 080606 G96 0.3+ 0.1- 100309 926 0.2+ 0.0 100418 215 0.2+ 0.0 080606 G96 0.0 0.1- 100312 H21 0.3- 0.0 100418 215 0.1+ 0.4- 080606 G96 0.4- 0.3+ 100312 H21 0.3- 0.2+ 100421 204 0.3+ 0.0 2010/ 100312 H21 0.3- 0.1- 100421 204 0.1+ 0.3+ 100228 C51 (3.8+ 4.7-) 100312 926 0.3+ 0.2- 100615 705 0.5- 0.4+ 100228 C51 (4.5+ 3.3-) 100312 926 0.4+ 0.3+ 100615 705 0.3+ 0.4+ 100228 C51 2.1+ 0.2- 100312 926 0.1+ 0.2+ 100704 C51 0.6- 0.4+ 100228 C51 0.1- 0.2+ 100312 926 0.4+ 0.1+ 100704 C51 1.7+ 1.0+ 100228 C51 (2.0+ 2.5-) 100313 B33 0.0 0.1+ 100704 C51 0.2+ 0.1- 100228 C51 0.3+ 1.0- 100313 B33 0.0 0.1- 100705 C51 (0.8- 2.8+) 100301 C51 1.0+ 1.0+ 100313 B33 0.1- 0.4- 100705 C51 2.1+ 1.0+ 100301 C51 (2.1+ 2.3+) 100313 H01 0.0 0.0 100705 C51 0.2- 0.7+ 100301 C51 2.1+ 1.9- 100313 691 (4.2+ 4.0-) 100705 C51 0.3+ 0.6- 100304 H21 0.4+ 0.7- 100313 H01 0.1- 0.0 100705 C51 0.6- 0.4+ 100305 J95 0.4- 0.2- 100313 H01 0.1- 0.1- 100705 C51 1.5- 0.6+ 100305 J95 0.2- 0.2- 100313 691 0.5- 0.3- 100705 C51 0.4- 0.5+ 100305 J95 0.0 0.2- 100313 H01 0.0 0.0 100705 C51 0.6+ 0.8+ 100305 H21 0.4- 0.3- 100313 673 0.7+ 0.7+ 100705 C51 0.7- 0.1- 100305 H21 0.3- 0.3- 100313 673 (0.6- 2.4-) 100706 C51 0.0 0.1+ 100305 H21 0.0 0.2- 100313 673 0.3- 0.4- 100706 C51 (2.6- 5.2+) 100305 926 0.3+ 0.1- 100313 673 0.6- 0.9+ 100706 C51 1.1+ 0.8- 100305 926 0.3+ 0.2+ 100313 673 (1.1- 2.3-) 100706 C51 1.2- 0.4- 100305 926 0.2+ 0.4+ 100323 B42 0.3+ 0.2- 100706 C51 1.6+ 0.1+ 100305 926 0.1- 0.2- 100323 B42 0.1- 0.2- 100706 C51 0.5+ 0.1- 100305 926 0.2+ 0.2- 100323 B42 0.3- 0.0 100706 C51 0.2+ 0.6- 100305 568 0.2- 0.1+ 100324 461 0.1- 0.1- 100706 C51 0.8+ 0.7- 100305 568 0.1- 0.1+ 100324 461 0.3- 0.4+ 100706 C51 0.5+ 1.1+ 100305 568 0.1- 0.0 100324 461 0.2- 0.2+ 100706 C51 0.3- 0.5- 100306 H21 0.4- 0.2- 100326 695 0.1- 0.0 100706 C51 1.9- 1.0- 100306 H21 0.4- 0.8+ 100326 695 0.2- 0.2+ 2011/ 100306 H21 0.2- 0.0 100326 695 0.0 0.4+ 110115 H15 0.3- 0.2+ 100307 B33 0.3- 0.4+ 100331 B18 0.8- 0.3- 110115 H15 0.1+ 0.7- 100307 B33 0.6+ 0.4- 100409 J01 0.5- 0.7+ 110115 H15 1.3+ 1.7- 100307 B33 0.5+ 0.6- 100409 J01 0.1- 0.3+ 110115 H15 2.1- 1.2+ 100307 J95 0.2+ 0.2- 100409 J01 0.8- 0.0 100307 J95 0.1- 1.0- 100413 850 0.4- 0.2- ( ) -------- Rejected Obs.

Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2011 Feb. 6

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