OAA computing section circular NK 1400 P/2005 T5 (Broughton)
The following improved orbital elements, by S. Nakano, are from 93 observations 2005 Aug. 26 to 2006 Jan. 6. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.59 arc second. See an orbit on YC 2492. Epoch = 2005 Nov. 6.0 TT T = 2005 Nov. 3.52846 +/- 0.02269 (m.e.) TT Peri. = 304.51592 +/- 0.00513 Node = 57.07061 +/- 0.00071 (2000.0) Inc. = 21.37246 +/- 0.00020 q = 3.2468007 +/- 0.0000223 AU e = 0.5524551 +/- 0.0000231 a = 7.2546929 +/- 0.0000520 AU n' = 0.05044005 +/- 0.00000054 P = 19.540 +/- 0.0002101 years (+/- 0.08 day) The predicted orbit for the 2025 return is as follows: T = 2025 June 15.01418 TT Epoch = 2025 June 14.0 TT Peri. = 304.84616 e = 0.5517458 Node = 56.99972 (2000.0) a = 7.2582837 AU Inc. = 21.38470 n'= 0.05040263 q = 3.2535562 AU P = 19.555 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2005/ 051025 701 0.7- 0.3- 051105 699 0.7- 0.9+ 050826 E12 1.1+ 0.5- 051025 644 0.3- 0.1- 051105 213 0.2+ 0.3- 050826 E12 0.6- 0.9- 051025 701 0.4- 1.1+ 051105 213 0.2+ 0.2+ 050826 E12 1.2+ 0.1+ 051025 G96 1.4+ 0.8+ 051105 213 0.6- 0.7+ 050826 E12 1.1- 0.7- 051025 644 0.1- 0.4+ 051105 213 0.6- 0.8+ 050926 704 0.5+ 1.0+ 051025 G96 1.2+ 0.1+ 051106 673 0.2- 1.0- 050926 704 0.4- 0.3+ 051025 701 0.1- 0.4- 051106 673 0.2- 1.2- 050926 704 0.6- 0.3+ 051025 G96 0.4+ 0.2+ 051106 673 0.1- 1.1- 050926 704 0.6- 0.6+ 051025 G96 0.8+ 0.8+ 051106 673 0.2- 1.0- 051002 E12 0.2+ 0.3+ 051025 651 0.0 0.2- 051108 415 0.3- 0.3- 051002 E12 1.4+ 0.3+ 051025 651 0.2+ 0.1- 051108 415 0.8- 0.6- 051002 E12 0.7- 0.1- 051026 415 0.3- 0.2+ 051108 415 0.4- 0.4- 051002 E12 0.0 0.4- 051026 415 0.3+ 0.4+ 051109 415 1.4- 0.6- 051007 428 (3.7+ 0.8-) 051026 215 0.1- 0.7+ 051109 415 0.0 0.6- 051009 428 0.0 0.3+ 051026 A79 1.4- 0.0 051113 673 0.5- 0.6- 051009 428 0.4- 1.5+ 051026 A79 0.1- 0.4- 051113 673 0.4- 0.8- 051023 428 0.1- 0.7+ 051026 A79 0.1+ 0.1+ 051113 673 0.5- 0.6- 051023 428 0.0 0.3+ 051027 372 0.9+ 0.1- 051113 673 0.3- 0.8- 051023 428 0.4+ 0.3+ 051029 204 0.2- 0.1+ 051128 699 0.9- 1.7+ 051023 428 0.1- 0.1+ 051029 204 0.5+ 0.5+ 051128 699 0.8+ 0.6+ 051024 673 0.0 1.1- 051030 428 0.2- 0.8+ 051128 699 0.4+ 0.3+ 051024 673 0.1- 1.1- 051101 428 0.2- 0.6+ 051204 428 0.2+ 0.0 051024 673 0.2- 1.1- 051101 428 0.1+ 0.8+ 051204 428 0.5+ 0.1- 051024 673 0.1- 1.1- 051101 428 0.4+ 0.7+ 051204 428 0.7+ 0.1+ 051024 413 0.3+ 0.2- 051102 415 0.8+ 0.4- 051206 428 0.1+ 0.2- 051024 413 0.3+ 0.5- 051102 415 0.0 0.2- 051206 428 0.2- 0.4- 051024 413 0.1- 0.3- 051102 415 0.7- 0.6- 051207 415 1.0- 0.3+ 051024 413 0.1+ 0.3- 051102 415 0.2- 0.3- 051220 415 0.3+ 0.4+ 051025 734 0.5+ 0.4- 051104 415 0.1+ 0.4- 051220 415 1.2+ 0.2- 051025 734 0.8+ 0.2+ 051105 699 0.2- 0.0 2006/ 051025 734 0.3+ 0.5+ 051105 699 0.2+ 0.5+ 060106 204 0.0 0.0 051025 644 0.1+ 0.4+ 051105 699 0.4+ 1.2+ 060106 204 0.2+ 0.4- ( ) -------- Rejected Obs.
Director, Computing Section Late edition Syuichi Nakano 2006 Feb. 6