Nakano Note (Nakano wa Kangaeru noda) NK 2246 P/2010 U1 (Boattini)
The following improved orbital elements, by S. Nakano, are from 114 observations 2010 Oct. 1 to 2011 Dec. 28. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.55 arc second. See the previous orbits in NK 2039 (= HICQ 2011/2012) and NK 2132. Epoch = 2010 Mar. 25.0 TT T = 2010 Mar. 28.05509 +/- 0.07093 (m.e.) TT Peri. = 88.84187 +/- 0.00828 Node = 281.50233 +/- 0.00056 (2000.0) Inc. = 8.24335 +/- 0.00005 q = 4.9030731 +/- 0.0001221 AU e = 0.2634068 +/- 0.0000259 a = 6.6564190 +/- 0.0000431 AU n' = 0.05739091 +/- 0.00000056 P = 17.174 +/- 0.0001668 years (+/- 0.06 day) The predicted orbit for the 2026 return is as follows: T = 2026 Sept. 9.92874 TT Epoch = 2026 Aug. 28.0 TT Peri. = 86.70425 e = 0.2475951 Node = 280.65098 (2000.0) a = 6.4799900 AU Inc. = 8.22689 n'= 0.05975064 q = 4.8755764 AU P = 16.495 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2010/ 101018 H21 0.9- 1.3- 101108 H15 0.8- 0.1+ 101001 J75 1.7+ 0.4- 101018 691 0.5- 0.3+ 101108 H15 0.0 0.1+ 101001 J75 0.3+ 0.9- 101018 691 0.5- 0.2+ 101108 F65 0.3+ 0.7+ 101001 J75 0.7+ 1.2+ 101018 691 0.4- 0.1- 101108 F65 0.4+ 0.7+ 101017 G96 0.7- 0.5- 101026 204 0.3+ 0.1+ 101109 349 0.2+ 0.2+ 101017 G96 0.5+ 0.2+ 101027 204 0.6+ 0.4+ 101109 349 0.7+ 0.2- 101017 G96 0.3- 0.0 101028 235 0.0 0.4- 101111 585 0.4+ 0.1- 101017 G96 0.0 0.0 101028 235 0.1- 0.2- 101111 585 0.1+ 0.6+ 101017 G96 0.3+ 0.2+ 101029 H06 0.2+ 0.4+ 101111 585 0.5+ 0.8+ 101017 G96 0.3+ 0.4+ 101029 H06 0.5+ 0.3+ 101111 585 0.1+ 0.3- 101017 G96 0.2- 0.1- 101029 H06 0.7+ 0.3+ 101111 585 0.2+ 0.4- 101017 G96 0.4- 0.2- 101029 157 0.2+ 0.6+ 101111 585 0.3- 0.1+ 101017 G96 0.7- 0.1- 101029 157 0.6+ 0.0 101113 A77 1.5- 0.5+ 101017 H21 0.3+ 0.2+ 101029 J01 0.1+ 0.2- 101113 A77 1.0- 0.5+ 101017 H21 0.3+ 0.2+ 101029 J01 0.2+ 0.0 101113 A77 1.1- 0.3- 101017 H21 0.0 0.0 101029 J01 0.4+ 0.2+ 101115 F65 0.3+ 0.6+ 101017 H21 0.0 0.0 101031 585 0.5- 1.3+ 101115 F65 0.9+ 0.5+ 101017 H21 0.4- 0.5- 101031 585 0.0 1.1+ 101127 349 (2.3+ 2.1+) 101017 H21 0.4- 0.5- 101031 585 0.8- 0.7+ 101127 349 (2.7+ 2.4+) 101017 H21 0.5+ 0.3- 101031 585 0.7+ 0.7+ 101229 372 0.4- 0.2+ 101017 H21 0.5+ 0.3- 101101 F65 0.2+ 0.3+ 101229 372 0.3+ 0.0 101017 854 0.7- 0.0 101101 F65 0.4+ 0.4+ 101229 372 0.3+ 0.1- 101017 854 1.0+ 0.3+ 101102 G96 0.1- 0.3- 2011/ 101017 854 0.9+ 0.2+ 101102 G96 0.8- 0.4- 110102 204 0.6- 0.5- 101017 H36 0.5- 0.4- 101102 G96 0.0 0.2- 110102 204 0.2+ 0.0 101017 691 0.2- 0.3+ 101102 G96 0.2- 0.6- 110105 215 0.6+ 0.9- 101017 H36 0.2- 0.5+ 101104 J01 0.1- 0.3- 110105 215 0.9+ 0.8- 101017 691 0.2- 0.2+ 101104 J01 0.2- 0.2- 110108 349 0.5+ 0.6- 101017 H36 0.4- 0.3+ 101104 J01 0.1+ 0.0 110108 349 0.8- 1.4- 101017 691 0.1+ 0.3+ 101105 703 0.5+ 1.1+ 111003 C32 0.1+ 0.0 101017 300 0.2- 0.0 101105 703 0.2+ 0.3- 111003 C32 0.4+ 0.0 101017 300 0.6- 0.2- 101105 703 0.7- 1.0- 111005 C32 0.1+ 0.3- 101017 300 0.4- 0.4- 101105 703 (2.0- 0.4-) 111005 C32 0.4+ 0.1+ 101017 300 0.8- 0.0 101105 215 1.4+ 1.0+ 111005 C32 0.4- 0.5+ 101018 H21 0.6- 1.1- 101105 215 1.1+ 0.3+ 111005 C32 0.3+ 0.2+ 101018 H21 0.6- 1.1- 101105 215 1.2+ 0.2- 111228 G96 1.0- 0.0 101018 H21 1.0- 1.1- 101106 372 0.1- 0.1- 111228 G96 0.3- 0.5- 101018 H21 0.8- 0.3- 101106 372 0.1- 0.6- 111228 G96 0.6+ 0.6+ 101018 H21 0.8- 0.3- 101108 H15 0.1+ 0.3+ 111228 G96 0.0 0.2- 101018 H21 0.9- 1.3- 101108 H15 0.5+ 0.7+ ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2012 Apr. 27