Nakano Note (Nakano wa Kangaeru noda) NK 1975 P/2010 C1 (Scotti)
The following improved orbital elements, by S. Nakano, are from 79 observations 2008 Dec. 30 to 2010 June 6. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.50 arc second. Epoch = 2009 Nov. 25.0 TT T = 2009 Dec. 2.03830 +/- 0.08125 (m.e.) TT Peri. = 3.70517 +/- 0.00736 Node = 142.03432 +/- 0.00010 (2000.0) Inc. = 9.14278 +/- 0.00005 q = 5.2349084 +/- 0.0000312 AU e = 0.2590137 +/- 0.0000123 a = 7.0647843 +/- 0.0000177 AU n' = 0.05248748 +/- 0.00000020 P = 18.778 +/- 0.0000705 years The predicted orbit for the 2028 return is as follows: T = 2028 Sept.21.15957 TT Epoch = 2028 Sept.26.0 TT Peri. = 2.85402 e = 0.2672524 Node = 141.72226 (2000.0) a = 7.1558883 AU Inc. = 9.11233 n'= 0.05148832 q = 5.2434602 AU P = 19.142 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2008/ 100213 204 0.1- 0.2+ 100315 A77 0.8+ 0.3- 081230 G96 0.6+ 0.5- 100214 J01 0.4+ 0.2- 100315 A77 0.6+ 0.7+ 081230 G96 0.4+ 0.1- 100214 J01 0.1+ 0.1- 100315 A77 1.7- 0.3- 081230 G96 0.1+ 0.8- 100214 J01 0.7+ 0.5- 100315 J01 0.4- 1.1- 081230 G96 0.3+ 0.6+ 100216 D93 0.9+ 0.2- 100315 J01 0.1- 0.0 2009/ 100216 D93 0.3+ 0.5+ 100316 213 0.1- 0.4+ 090102 291 0.6+ 0.4- 100216 D93 0.2+ 1.5+ 100316 213 0.1+ 0.3+ 090102 291 0.2+ 0.2- 100220 J01 0.4- 0.1- 100319 215 (2.4+ 1.1+) 090102 291 0.4+ 0.0 100220 J01 0.4+ 0.2- 100320 291 0.3+ 0.4- 090201 G96 0.2- 0.2+ 100220 J01 0.1+ 0.2- 100320 291 0.4- 0.3- 090201 G96 0.2+ 0.2+ 100305 204 0.2+ 0.1+ 100320 291 0.1- 0.4- 090201 G96 0.2+ 0.0 100306 204 0.5- 0.2+ 100320 291 0.1+ 0.2- 090201 G96 0.6- 0.0 100308 B82 (3.6+ 1.7-) 100320 291 0.1+ 0.0 090228 G96 0.2- 0.2- 100308 B82 (3.8+ 2.3-) 100320 291 0.7- 0.2- 090228 G96 0.5- 0.4- 100308 B82 (2.6+ 2.6-) 100322 B42 0.2- 0.2+ 090228 G96 0.2- 0.4+ 100308 B82 (4.9+ 3.1-) 100322 B42 0.1+ 0.5- 090228 G96 1.1- 1.5+ 100309 B82 (4.4+ 0.1-) 100322 B42 1.3- 1.9- 2010/ 100309 B82 0.1+ 1.7- 100404 941 0.5+ 0.0 100112 691 0.4+ 0.1- 100309 B82 (6.4- 0.8-) 100404 941 0.4+ 0.1- 100112 691 1.0+ 0.3+ 100313 213 0.4- 0.2- 100404 941 0.3+ 0.2- 100112 691 0.6+ 0.2+ 100313 213 0.2- 0.1- 100414 E10 0.6+ 0.0 100205 691 0.8- 0.0 100315 291 0.0 0.1+ 100414 E10 0.7+ 0.0 100205 691 0.4- 0.1+ 100315 291 0.1- 0.2+ 100414 E10 0.3+ 0.1+ 100205 691 0.2- 0.1+ 100315 291 0.1+ 0.1+ 100414 E10 0.0 0.3+ 100209 691 0.5- 0.3+ 100315 291 0.0 0.4+ 100414 E10 0.3+ 0.0 100209 691 0.4- 0.2+ 100315 291 0.2- 0.2+ 100414 E10 0.2+ 0.3+ 100209 691 1.7- 0.5+ 100315 291 0.3- 0.3+ 100606 291 0.4+ 0.3- 100210 291 0.4- 0.3+ 100315 291 0.0 0.0 100606 291 0.7+ 0.5+ 100210 291 0.4- 0.4+ 100315 291 0.1+ 0.0 100606 291 0.5+ 0.6+ 100210 291 0.5- 0.4+ 100315 291 0.3+ 0.2+ ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2010 Sept. 14