Nakano Note (Nakano wa Kangaeru noda) NK 2046 C/2010 L3 (Catalina)

The following improved orbital elements, by S. Nakano, are from 84 observations 2010 June 15 to 2011 Mar. 3. 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. The comet will pass 2.69 AU from Saturn on 2013 Dec. 21 UT. See an orbit on HICQ 2010/2011. Epoch = 2010 Nov. 20.0 TT T = 2010 Nov. 10.21504 +/- 0.20197 (m.e.) TT Peri. = 121.76283 +/- 0.00902 Node = 38.27546 +/- 0.00045 (2000.0) Inc. = 102.63091 +/- 0.00023 q = 9.8830103 +/- 0.0000997 AU e = 0.9991851 +/- 0.0000597 1/a = +0.0000825 +/- 0.0000060 1/AU origin = +0.000153 (Q= 7) future = +0.000079 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2010/ 100616 448 0.6+ 0.4- 100709 157 0.2- 0.2- 100615 703 0.4+ 0.1- 100616 H01 0.5- 0.3+ 100727 B11 0.5- 0.5- 100615 703 0.7- 0.5- 100616 926 0.1+ 0.0 100727 B11 0.2+ 0.1+ 100615 703 1.3- 1.3- 100616 H21 0.6+ 0.7+ 100727 B11 0.0 0.2+ 100615 703 1.6- 1.0- 100616 H01 0.5- 0.3+ 100727 B11 0.4- 0.0 100615 H01 0.4- 0.5+ 100616 448 0.6- 1.4+ 100804 157 0.1- 0.7+ 100615 H01 0.3- 0.4+ 100616 H01 0.5- 0.3+ 100804 157 0.1- 0.2+ 100615 H01 0.4- 0.3+ 100616 H01 0.5- 0.5+ 100807 215 0.5+ 0.1+ 100615 H15 0.9+ 0.2+ 100616 H06 0.1+ 0.7+ 100807 215 0.3+ 0.1- 100615 H15 0.7+ 0.0 100616 H06 0.2- 0.1- 100807 215 0.0 0.3- 100615 H01 0.3- 0.3+ 100616 658 0.1- 0.2- 100807 204 0.2- 0.3- 100615 H15 1.5+ 0.2- 100616 658 0.7+ 0.2- 100807 204 0.1- 0.4- 100615 B15 0.5+ 0.6- 100616 658 0.2- 0.1+ 100811 118 1.3- 0.9+ 100615 B15 0.9+ 0.8- 100616 H06 0.9- 0.3+ 100811 118 0.2+ 0.5- 100615 B15 0.7+ 0.7- 100616 H06 0.0 0.6+ 100811 118 0.7+ 0.8- 100615 B15 0.3+ 0.5- 100616 H06 0.7+ 0.8+ 100819 691 0.4- 0.4+ 100615 B15 0.2+ 0.5- 100616 470 0.2- 0.2- 100819 691 0.1- 0.5- 100615 B15 0.1+ 0.3- 100616 470 0.4- 0.1+ 100819 691 0.5- 0.5- 100615 J95 0.1+ 0.4- 100616 J01 0.3+ 0.5+ 100821 A77 0.4+ 1.9+ 100616 J95 0.3+ 0.1- 100616 J01 0.2+ 0.5+ 100821 A77 0.6+ 1.2+ 100616 H36 0.5- 0.2- 100616 J01 0.0 0.4+ 100821 A77 0.7- 0.5+ 100616 H10 0.1+ 0.2+ 100617 157 0.4- 0.7- 100822 160 0.4+ 0.4- 100616 H36 0.3+ 0.2- 100617 157 0.2- 0.7- 100822 160 0.3+ 0.5- 100616 H10 0.1+ 0.1+ 100617 157 0.2- 0.4- 100822 160 0.2+ 1.0- 100616 H10 0.1- 0.0 100619 H10 0.2+ 0.1+ 2011/ 100616 926 0.4+ 0.1+ 100619 H10 0.0 0.2- 110213 H06 0.1- 1.3+ 100616 448 0.7+ 0.1+ 100619 H10 0.4- 0.4- 110303 H06 0.1+ 0.8- 100616 926 0.2+ 0.2+ 100709 157 0.1- 0.4- 110303 H06 0.2+ 0.5- 100616 H21 0.6+ 0.9+ 100709 157 0.2- 0.1- ( ) -------- Rejected Obs.

Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2011 Mar. 7

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