Nakano Note (Nakano wa Kangaeru noda) NK 2437 C/2011 Q1 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 58 observations 2011 Aug. 17 to 2012 June 25. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.38 arc second. See an orbit in HICQ 2012. Epoch = 2011 July 18.0 TT T = 2011 June 29.38615 +/- 0.02590 (m.e.) TT Peri. = 135.92108 +/- 0.00206 Node = 142.24563 +/- 0.00011 (2000.0) Inc. = 94.85998 +/- 0.00013 q = 6.7801151 +/- 0.0000323 AU e = 0.9979750 +/- 0.0000364 1/a = +0.0002987 +/- 0.0000054 1/AU origin = +0.000356 (Q= 7) future = +0.000420 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2011/ 110822 H21 0.3- 0.2- 110828 B42 0.7+ 0.9- 110817 F51 0.1+ 0.0 110822 F65 0.3- 0.1+ 110828 B42 0.8+ 0.0 110817 F51 0.1- 0.2- 110822 F65 0.2+ 0.0 110829 568 0.1- 0.0 110820 F51 0.1- 0.0 110822 F65 0.1- 0.4+ 110829 568 0.1- 0.0 110820 F51 0.0 0.0 110822 F65 0.1+ 0.2+ 110829 568 0.1- 0.0 110820 F51 0.1+ 0.2- 110822 F65 0.0 0.2+ 110905 B42 0.6- 1.1- 110820 F51 0.1+ 0.2- 110822 D35 0.1+ 0.3+ 110905 B42 0.0 0.5- 110821 D35 0.3+ 0.4+ 110822 D35 0.3+ 0.7+ 110921 215 0.2+ 0.1- 110821 D35 0.2+ 0.6+ 110822 D35 0.2+ 0.3+ 110921 215 0.0 0.7- 110821 D35 0.4+ 0.3+ 110822 D35 0.2+ 0.2+ 111024 H06 0.1+ 0.8+ 110821 D35 0.2+ 0.5+ 110822 D35 0.0 0.1- 111024 H06 0.1- 0.7+ 110821 D35 0.1+ 0.3+ 110823 H06 0.3+ 0.5+ 111024 H06 0.1- 0.1- 110821 D35 0.2+ 0.3+ 110823 H06 0.0 0.7+ 111123 H06 0.1+ 0.2- 110821 D35 0.2+ 1.0+ 110823 157 0.6+ 0.2+ 111123 H06 0.1+ 0.2- 110821 D35 (1.3+ 2.7+) 110823 157 0.1- 0.0 111123 H06 0.1+ 0.3- 110821 D35 0.3+ 1.3+ 110826 B42 0.7+ 0.6+ 2012/ 110821 204 1.5- 1.0- 110826 B42 0.7+ 0.4- 120625 H06 0.1- 0.1- 110821 204 0.4+ 0.4+ 110826 B42 0.0 0.0 120625 H06 0.0 0.0 110822 H21 0.5- 0.8- 110827 372 0.0 0.3+ 120625 H06 0.1+ 0.1+ 110822 H21 0.4- 0.3- 110827 372 0.1- 0.1- 110822 H21 0.2- 0.1- 110827 372 0.1- 1.1+ ( ) -------- Rejected Obs.

Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2013 Apr. 2

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